> ## Documentation Index
> Fetch the complete documentation index at: https://docs.useautumn.com/llms.txt
> Use this file to discover all available pages before exploring further.

# List Customers

> Lists customers with cursor pagination and optional filters. Pass `start_cursor: ""` (or omit) for the first page; use `next_cursor` from a prior response for subsequent pages.

export const DynamicResponseExample = ({json, statusCode = "200"}) => {
  const toCamelCase = str => {
    return str.replace(/_([a-z])/g, (_, c) => c.toUpperCase());
  };
  const convertKeysToCamelCase = obj => {
    if (Array.isArray(obj)) {
      return obj.map(item => convertKeysToCamelCase(item));
    }
    if (obj !== null && typeof obj === "object") {
      return Object.keys(obj).reduce((acc, key) => {
        const camelKey = toCamelCase(key);
        acc[camelKey] = convertKeysToCamelCase(obj[key]);
        return acc;
      }, {});
    }
    return obj;
  };
  const [isTypeScript, setIsTypeScript] = useState(() => {
    if (typeof window !== "undefined") {
      try {
        const lang = localStorage.getItem("code");
        return JSON.parse(lang) === "typescript";
      } catch {
        return true;
      }
    }
    return true;
  });
  useEffect(() => {
    const onMintlifyStorage = event => {
      if (event.detail?.key === "code") {
        try {
          const value = JSON.parse(event.detail.value);
          setIsTypeScript(value === "typescript");
        } catch {}
      }
    };
    const pollInterval = setInterval(() => {
      try {
        const lang = localStorage.getItem("code");
        const value = JSON.parse(lang);
        setIsTypeScript(value === "typescript");
      } catch {}
    }, 300);
    document.addEventListener("mintlify-localstorage", onMintlifyStorage);
    return () => {
      document.removeEventListener("mintlify-localstorage", onMintlifyStorage);
      clearInterval(pollInterval);
    };
  }, []);
  const camelCaseJson = useMemo(() => convertKeysToCamelCase(json), [json]);
  const snakeCaseString = JSON.stringify(json, null, 2);
  const camelCaseString = JSON.stringify(camelCaseJson, null, 2);
  return <ResponseExample>
			{isTypeScript ? <CodeBlock language="json" filename={statusCode}>
					{camelCaseString}
				</CodeBlock> : <CodeBlock language="json" filename={statusCode}>
					{snakeCaseString}
				</CodeBlock>}
		</ResponseExample>;
};

export const DynamicResponseField = ({children, name, ...props}) => {
  const convertToCamelCase = str => {
    if (typeof str !== "string") return str;
    return str.replace(/[_-](\w)/g, (_, c) => c.toUpperCase());
  };
  const [lang, setLang] = useState(() => {
    if (typeof window !== "undefined") {
      const stored = localStorage.getItem("code");
      return stored || '"typescript"';
    }
    return '"typescript"';
  });
  useEffect(() => {
    const onMintlifyStorage = event => {
      const key = event.detail?.key;
      if (key === "code") {
        setLang(event.detail.value);
      }
    };
    const pollInterval = setInterval(() => {
      const current = localStorage.getItem("code");
      if (current && current !== lang) {
        setLang(current);
      }
    }, 500);
    document.addEventListener("mintlify-localstorage", onMintlifyStorage);
    return () => {
      document.removeEventListener("mintlify-localstorage", onMintlifyStorage);
      clearInterval(pollInterval);
    };
  }, [lang]);
  const resolvedName = useMemo(() => {
    try {
      const value = JSON.parse(lang);
      const useCamelCase = value === "typescript";
      return useCamelCase ? convertToCamelCase(name) : name;
    } catch {
      return name;
    }
  }, [name, lang]);
  return <ResponseField name={resolvedName} {...props}>
			{children}
		</ResponseField>;
};

export const DynamicParamField = ({children, body, path, ...props}) => {
  const convertToCamelCase = str => {
    if (typeof str !== "string") return str;
    return str.replace(/[_-](\w)/g, (_, c) => c.toUpperCase());
  };
  const [lang, setLang] = useState(() => {
    if (typeof window !== "undefined") {
      const stored = localStorage.getItem("code");
      return stored || '"typescript"';
    }
    return '"typescript"';
  });
  useEffect(() => {
    const onMintlifyStorage = event => {
      const key = event.detail?.key;
      if (key === "code") {
        setLang(event.detail.value);
      }
    };
    const pollInterval = setInterval(() => {
      const current = localStorage.getItem("code");
      if (current && current !== lang) {
        setLang(current);
      }
    }, 500);
    document.addEventListener("mintlify-localstorage", onMintlifyStorage);
    return () => {
      document.removeEventListener("mintlify-localstorage", onMintlifyStorage);
      clearInterval(pollInterval);
    };
  }, [lang]);
  const resolvedBody = useMemo(() => {
    try {
      const value = JSON.parse(lang);
      const useCamelCase = value === "typescript";
      return useCamelCase ? convertToCamelCase(body) : body;
    } catch {
      return body;
    }
  }, [body, lang]);
  const resolvedPath = useMemo(() => {
    try {
      const value = JSON.parse(lang);
      const useCamelCase = value === "typescript";
      return useCamelCase ? convertToCamelCase(path) : path;
    } catch {
      return path;
    }
  }, [path, lang]);
  return <ParamField body={resolvedBody} path={resolvedPath} {...props}>
			{children}
		</ParamField>;
};

### Body Parameters

<DynamicParamField body="start_cursor" type="string">
  Opaque pagination cursor. Empty string (default) requests the first page; use next\_cursor from a prior response for subsequent pages.
</DynamicParamField>

<DynamicParamField body="limit" type="integer">
  Number of items to return. Default 50, hard ceiling 5000.
</DynamicParamField>

<DynamicParamField body="plans" type="object[]">
  Filter by plan ID and version. Returns customers with active subscriptions to this plan.

  <Expandable title="properties">
    <DynamicParamField body="id" type="string" required />

    <DynamicParamField body="versions" type="number[]" />
  </Expandable>
</DynamicParamField>

<DynamicParamField body="subscription_status" type="'active' | 'scheduled'">
  Filter by customer product status. Defaults to active and scheduled.
</DynamicParamField>

<DynamicParamField body="search" type="string">
  Search customers by id, name, or email.
</DynamicParamField>

<DynamicParamField body="processors" type="('stripe' | 'revenuecat' | 'vercel')[]">
  Filter by customer processor type (stripe, revenuecat, vercel).
</DynamicParamField>

### Response

<DynamicResponseField name="list" type="object[]">
  Items for current page.

  <Expandable title="properties">
    <DynamicResponseField name="id" type="string | null">
      Your unique identifier for the customer.
    </DynamicResponseField>

    <DynamicResponseField name="name" type="string | null">
      The name of the customer.
    </DynamicResponseField>

    <DynamicResponseField name="email" type="string | null">
      The email address of the customer.
    </DynamicResponseField>

    <DynamicResponseField name="created_at" type="number">
      Timestamp of customer creation in milliseconds since epoch.
    </DynamicResponseField>

    <DynamicResponseField name="fingerprint" type="string | null">
      A unique identifier (eg. serial number) to de-duplicate customers across devices or browsers. For example: apple device ID.
    </DynamicResponseField>

    <DynamicResponseField name="stripe_id" type="string | null">
      Stripe customer ID.
    </DynamicResponseField>

    <DynamicResponseField name="env" type="'sandbox' | 'live'">
      The environment this customer was created in.
    </DynamicResponseField>

    <DynamicResponseField name="metadata" type="object">
      The metadata for the customer.
    </DynamicResponseField>

    <DynamicResponseField name="send_email_receipts" type="boolean">
      Whether to send email receipts to the customer.
    </DynamicResponseField>

    <DynamicResponseField name="billing_controls" type="object">
      Billing controls for the customer (auto top-ups, etc.)

      <Expandable title="properties">
        <DynamicResponseField name="auto_topups" type="object[]">
          List of auto top-up configurations per feature.

          <Expandable title="properties">
            <DynamicResponseField name="feature_id" type="string">
              The ID of the feature (credit balance) to auto top-up.
            </DynamicResponseField>

            <DynamicResponseField name="enabled" type="boolean">
              Whether auto top-up is enabled.
            </DynamicResponseField>

            <DynamicResponseField name="threshold" type="number">
              When the balance drops below this threshold, an auto top-up will be purchased.
            </DynamicResponseField>

            <DynamicResponseField name="quantity" type="number">
              Amount of credits to add per auto top-up.
            </DynamicResponseField>

            <DynamicResponseField name="purchase_limit" type="object">
              Optional rate limit to cap how often auto top-ups occur. Expand billing\_controls.auto\_topups.purchase\_limit for a count of top ups and the next\_reset\_at.

              <Expandable title="properties">
                <DynamicResponseField name="interval" type="'hour' | 'day' | 'week' | 'month'">
                  The time interval for the purchase limit window. Null when no purchase limit is configured.
                </DynamicResponseField>

                <DynamicResponseField name="interval_count" type="number | null">
                  Number of intervals in the purchase limit window. Null when no purchase limit is configured.
                </DynamicResponseField>

                <DynamicResponseField name="limit" type="number | null">
                  Maximum number of auto top-ups allowed within the interval. Null when no purchase limit is configured.
                </DynamicResponseField>

                <DynamicResponseField name="count" type="number">
                  Number of auto top-ups already consumed in the current window.
                </DynamicResponseField>

                <DynamicResponseField name="next_reset_at" type="number">
                  Unix ms timestamp when the current purchase window ends and the count resets.
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="invoice_mode" type="boolean">
              When true, auto top-up creates a send\_invoice invoice instead of auto-charging.
            </DynamicResponseField>

            <DynamicResponseField name="source" type="'customer' | 'plan'">
              Response-only: whether the entry is a customer-level override or inherited from an attached plan's defaults.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>

        <DynamicResponseField name="spend_limits" type="object[]">
          List of overage spend limits per feature (caps overage spend).

          <Expandable title="properties">
            <DynamicResponseField name="feature_id" type="string">
              Optional feature ID this spend limit applies to.
            </DynamicResponseField>

            <DynamicResponseField name="enabled" type="boolean">
              Whether the overage spend limit is enabled.
            </DynamicResponseField>

            <DynamicResponseField name="limit_type" type="'absolute' | 'usage_percentage'">
              How overage\_limit is interpreted: an absolute overage cap (default) or a percentage of the main-plan allowance.
            </DynamicResponseField>

            <DynamicResponseField name="overage_limit" type="number">
              Overage cap for the feature: absolute units, or a percent (e.g. 120) when limit\_type is usage\_percentage.
            </DynamicResponseField>

            <DynamicResponseField name="skip_overage_billing" type="boolean">
              When true, overage for this feature is not posted to Stripe. Usage tracking and balance resets still behave normally.
            </DynamicResponseField>

            <DynamicResponseField name="source" type="'customer' | 'plan'">
              Response-only: whether the entry is a customer-level override or inherited from an attached plan's defaults.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>

        <DynamicResponseField name="usage_limits" type="object[]">
          List of hard usage caps per feature, with current interval usage.

          <Expandable title="properties">
            <DynamicResponseField name="feature_id" type="string">
              The feature this usage limit applies to.
            </DynamicResponseField>

            <DynamicResponseField name="enabled" type="boolean">
              Whether this usage limit is enabled.
            </DynamicResponseField>

            <DynamicResponseField name="limit" type="number">
              Maximum units allowed per interval.
            </DynamicResponseField>

            <DynamicResponseField name="interval" type="'day' | 'week' | 'month' | 'year'">
              Interval for the cap, aligned to the customer's billing cycle.
            </DynamicResponseField>

            <DynamicResponseField name="filter" type="object">
              When set, only usage from events whose properties match counts toward this cap. Omit to count all usage of the feature.

              <Expandable title="properties">
                <DynamicResponseField name="properties" type="object" />
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="usage" type="number">
              Current usage already consumed in the active interval. Response-only; not stored on billing controls.
            </DynamicResponseField>

            <DynamicResponseField name="source" type="'customer' | 'plan'">
              Response-only: whether the entry is a customer-level override or inherited from an attached plan's defaults.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>

        <DynamicResponseField name="usage_alerts" type="object[]">
          List of usage alert configurations per feature.

          <Expandable title="properties">
            <DynamicResponseField name="feature_id" type="string">
              The feature ID this alert applies to.
            </DynamicResponseField>

            <DynamicResponseField name="enabled" type="boolean">
              Whether this usage alert is enabled.
            </DynamicResponseField>

            <DynamicResponseField name="threshold" type="number">
              The threshold value that triggers the alert. For usage or remaining, this is an absolute count. For usage\_percentage or remaining\_percentage, this is a percentage (0-100).
            </DynamicResponseField>

            <DynamicResponseField name="threshold_type" type="'usage' | 'usage_percentage' | 'remaining' | 'remaining_percentage'">
              Whether the threshold is an absolute count or a percentage of the usage allowance or remaining balance.
            </DynamicResponseField>

            <DynamicResponseField name="name" type="string">
              Optional user-defined label to distinguish multiple alerts on the same feature.
            </DynamicResponseField>

            <DynamicResponseField name="source" type="'customer' | 'plan'">
              Response-only: whether the entry is a customer-level override or inherited from an attached plan's defaults.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>

        <DynamicResponseField name="overage_allowed" type="object[]">
          List of overage allowed controls per feature. When enabled, usage can exceed balance.

          <Expandable title="properties">
            <DynamicResponseField name="feature_id" type="string">
              The feature ID this overage allowed control applies to.
            </DynamicResponseField>

            <DynamicResponseField name="enabled" type="boolean">
              Whether overage is allowed for this feature.
            </DynamicResponseField>

            <DynamicResponseField name="source" type="'customer' | 'plan'">
              Response-only: whether the entry is a customer-level override or inherited from an attached plan's defaults.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>
      </Expandable>
    </DynamicResponseField>

    <DynamicResponseField name="subscriptions" type="object[]">
      Active and scheduled recurring plans that this customer has attached.

      <Expandable title="properties">
        <DynamicResponseField name="id" type="string">
          The unique identifier of this subscription. If a subscription\_id was provided at attach time, it is used; otherwise, falls back to the internal ID.
        </DynamicResponseField>

        <DynamicResponseField name="plan" type="object">
          The full plan object if expanded.

          <Expandable title="properties">
            <DynamicResponseField name="id" type="string">
              Unique identifier for the plan.
            </DynamicResponseField>

            <DynamicResponseField name="name" type="string">
              Display name of the plan.
            </DynamicResponseField>

            <DynamicResponseField name="description" type="string | null">
              Optional description of the plan.
            </DynamicResponseField>

            <DynamicResponseField name="group" type="string | null">
              Group identifier for organizing related plans. Plans in the same group are mutually exclusive.
            </DynamicResponseField>

            <DynamicResponseField name="version" type="number">
              Version number of the plan. Incremented when plan configuration changes.
            </DynamicResponseField>

            <DynamicResponseField name="add_on" type="boolean">
              Whether this is an add-on plan that can be attached alongside a main plan.
            </DynamicResponseField>

            <DynamicResponseField name="auto_enable" type="boolean">
              If true, this plan is automatically attached when a customer is created. Used for free plans.
            </DynamicResponseField>

            <DynamicResponseField name="price" type="object | null">
              Base recurring price for the plan. Null for free plans or usage-only plans.

              <Expandable title="properties">
                <DynamicResponseField name="amount" type="number">
                  Base price amount for the plan.
                </DynamicResponseField>

                <DynamicResponseField name="additional_currencies" type="object[]">
                  Base price amounts in additional currencies. The base 'amount' is in the org's default currency.

                  <Expandable title="properties">
                    <DynamicResponseField name="currency" type="string">
                      Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                    </DynamicResponseField>

                    <DynamicResponseField name="amount" type="number">
                      Price amount in this currency. Set explicitly per currency, not converted from the base amount.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="interval" type="'one_off' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                  Billing interval (e.g. 'month', 'year').
                </DynamicResponseField>

                <DynamicResponseField name="interval_count" type="number">
                  Number of intervals per billing cycle. Defaults to 1.
                </DynamicResponseField>

                <DynamicResponseField name="display" type="object">
                  Display text for showing this price in pricing pages.

                  <Expandable title="properties">
                    <DynamicResponseField name="primary_text" type="string">
                      Main display text (e.g. '\$10' or '100 messages').
                    </DynamicResponseField>

                    <DynamicResponseField name="secondary_text" type="string">
                      Secondary display text (e.g. 'per month' or 'then \$0.5 per 100').
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="items" type="object[]">
              Feature configurations included in this plan. Each item defines included units, pricing, and reset behavior for a feature.

              <Expandable title="properties">
                <DynamicResponseField name="feature_id" type="string">
                  The ID of the feature this item configures.
                </DynamicResponseField>

                <DynamicResponseField name="feature" type="object">
                  The full feature object if expanded.

                  <Expandable title="properties">
                    <DynamicResponseField name="id" type="string">
                      The ID of the feature, used to refer to it in other API calls like /track or /check.
                    </DynamicResponseField>

                    <DynamicResponseField name="name" type="string | null">
                      The name of the feature.
                    </DynamicResponseField>

                    <DynamicResponseField name="type" type="'static' | 'boolean' | 'single_use' | 'continuous_use' | 'credit_system' | 'ai_credit_system'">
                      The type of the feature
                    </DynamicResponseField>

                    <DynamicResponseField name="display" type="object | null">
                      Singular and plural display names for the feature.

                      <Expandable title="properties">
                        <DynamicResponseField name="singular" type="string">
                          The singular display name for the feature.
                        </DynamicResponseField>

                        <DynamicResponseField name="plural" type="string">
                          The plural display name for the feature.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="credit_schema" type="object[] | null">
                      Credit cost schema for credit system features.

                      <Expandable title="properties">
                        <DynamicResponseField name="metered_feature_id" type="string">
                          The ID of the metered feature (should be a single\_use feature).
                        </DynamicResponseField>

                        <DynamicResponseField name="credit_cost" type="number">
                          The credit cost of the metered feature.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="archived" type="boolean | null">
                      Whether or not the feature is archived.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="included" type="number">
                  Number of free units included. For consumable features, balance resets to this number each interval.
                </DynamicResponseField>

                <DynamicResponseField name="unlimited" type="boolean">
                  Whether the customer has unlimited access to this feature.
                </DynamicResponseField>

                <DynamicResponseField name="reset" type="object | null">
                  Reset configuration for consumable features. Null for non-consumable features like seats where usage persists across billing cycles.

                  <Expandable title="properties">
                    <DynamicResponseField name="interval" type="'one_off' | 'minute' | 'hour' | 'day' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                      The interval at which the feature balance resets (e.g. 'month', 'year'). For consumable features, usage resets to 0 and included units are restored.
                    </DynamicResponseField>

                    <DynamicResponseField name="interval_count" type="number">
                      Number of intervals between resets. Defaults to 1.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="price" type="object | null">
                  Pricing configuration for usage beyond included units. Null if feature is entirely free.

                  <Expandable title="properties">
                    <DynamicResponseField name="amount" type="number">
                      Price per billing\_units after included usage is consumed. Mutually exclusive with tiers.
                    </DynamicResponseField>

                    <DynamicResponseField name="additional_currencies" type="object[]">
                      Amounts in additional currencies for this flat price. The base 'amount' is in the org's default currency. Only valid with 'amount', not 'tiers' (tiered prices carry per-currency amounts on each tier).

                      <Expandable title="properties">
                        <DynamicResponseField name="currency" type="string">
                          Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                        </DynamicResponseField>

                        <DynamicResponseField name="amount" type="number">
                          Price amount in this currency. Set explicitly per currency, not converted from the base amount.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="tiers" type="object[]">
                      Tiered pricing configuration. Each tier's 'to' INCLUDES the included amount. Either 'tiers' or 'amount' is required.

                      <Expandable title="properties">
                        <DynamicResponseField name="to" type="number" />

                        <DynamicResponseField name="amount" type="number" />

                        <DynamicResponseField name="flat_amount" type="number" />

                        <DynamicResponseField name="additional_currencies" type="object[]">
                          <Expandable title="properties">
                            <DynamicResponseField name="currency" type="string">
                              Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                            </DynamicResponseField>

                            <DynamicResponseField name="amount" type="number">
                              Per-unit amount for this tier in this currency.
                            </DynamicResponseField>

                            <DynamicResponseField name="flat_amount" type="number">
                              Flat amount for this tier in this currency, if the tier uses one.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="tier_behavior" type="'graduated' | 'volume'" />

                    <DynamicResponseField name="interval" type="'one_off' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                      Billing interval for this price. For consumable features, should match reset.interval.
                    </DynamicResponseField>

                    <DynamicResponseField name="interval_count" type="number">
                      Number of intervals per billing cycle. Defaults to 1.
                    </DynamicResponseField>

                    <DynamicResponseField name="billing_units" type="number">
                      Number of units per price increment. Usage is rounded UP to the nearest billing\_units when billed (e.g. billing\_units=100 means 101 usage rounds to 200).
                    </DynamicResponseField>

                    <DynamicResponseField name="billing_method" type="'prepaid' | 'usage_based'">
                      'prepaid' for features like seats where customers pay upfront, 'usage\_based' for pay-as-you-go after included usage.
                    </DynamicResponseField>

                    <DynamicResponseField name="max_purchase" type="number | null">
                      Maximum units a customer can purchase beyond included. E.g. if included=100 and max\_purchase=300, customer can use up to 400 total before usage is capped. Null for no limit.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="display" type="object">
                  Display text for showing this item in pricing pages.

                  <Expandable title="properties">
                    <DynamicResponseField name="primary_text" type="string">
                      Main display text (e.g. '\$10' or '100 messages').
                    </DynamicResponseField>

                    <DynamicResponseField name="secondary_text" type="string">
                      Secondary display text (e.g. 'per month' or 'then \$0.5 per 100').
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="rollover" type="object">
                  Rollover configuration for unused units. If set, unused included units roll over to the next period.

                  <Expandable title="properties">
                    <DynamicResponseField name="max" type="number | null">
                      Maximum rollover units. Null for unlimited rollover.
                    </DynamicResponseField>

                    <DynamicResponseField name="max_percentage" type="number | null">
                      Maximum rollover as a percentage (0-100) of included + prepaid grant. Mutually exclusive with max.
                    </DynamicResponseField>

                    <DynamicResponseField name="expiry_duration_type" type="'month' | 'forever'">
                      When rolled over units expire.
                    </DynamicResponseField>

                    <DynamicResponseField name="expiry_duration_length" type="number">
                      Number of periods before expiry.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="free_trial" type="object">
              Free trial configuration. If set, new customers can try this plan before being charged.

              <Expandable title="properties">
                <DynamicResponseField name="duration_length" type="number">
                  Number of duration\_type periods the trial lasts.
                </DynamicResponseField>

                <DynamicResponseField name="duration_type" type="'day' | 'month' | 'year'">
                  Unit of time for the trial duration ('day', 'month', 'year').
                </DynamicResponseField>

                <DynamicResponseField name="card_required" type="boolean">
                  Whether a payment method is required to start the trial. If true, customer will be charged after trial ends.
                </DynamicResponseField>

                <DynamicResponseField name="on_end" type="'bill' | 'revert'">
                  Behavior when the trial ends. 'bill' charges the customer (default). 'revert' expires the trial and restores the customer's previous plan.
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="created_at" type="number">
              Unix timestamp (ms) when the plan was created.
            </DynamicResponseField>

            <DynamicResponseField name="env" type="'sandbox' | 'live'">
              Environment this plan belongs to ('sandbox' or 'live').
            </DynamicResponseField>

            <DynamicResponseField name="archived" type="boolean">
              Whether the plan is archived. Archived plans cannot be attached to new customers.
            </DynamicResponseField>

            <DynamicResponseField name="base_variant_id" type="string | null">
              Deprecated. Use variant\_details.base\_plan\_id instead. If this is a variant, the ID of the base plan it was created from.
            </DynamicResponseField>

            <DynamicResponseField name="variant_details" type="object">
              Details about how this variant relates to its latest base plan.

              <Expandable title="properties">
                <DynamicResponseField name="base_plan_id" type="string">
                  The ID of the base plan this variant was derived from.
                </DynamicResponseField>

                <DynamicResponseField name="customize" type="object">
                  The customization that transforms the base plan into this variant.

                  <Expandable title="properties">
                    <DynamicResponseField name="price" type="object | null">
                      Base price configuration for a plan.

                      <Expandable title="properties">
                        <DynamicResponseField name="amount" type="number">
                          Base price amount for the plan.
                        </DynamicResponseField>

                        <DynamicResponseField name="interval" type="'one_off' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                          Billing interval (e.g. 'month', 'year').
                        </DynamicResponseField>

                        <DynamicResponseField name="interval_count" type="number">
                          Number of intervals per billing cycle. Defaults to 1.
                        </DynamicResponseField>

                        <DynamicResponseField name="additional_currencies" type="object[]">
                          Base price amounts in additional currencies. The base 'amount' is in the org's default currency.

                          <Expandable title="properties">
                            <DynamicResponseField name="currency" type="string">
                              Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                            </DynamicResponseField>

                            <DynamicResponseField name="amount" type="number">
                              Price amount in this currency. Set explicitly per currency, not converted from the base amount.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="add_items" type="object[]">
                      Items to add to the plan.

                      <Expandable title="properties">
                        <DynamicResponseField name="feature_id" type="string">
                          The ID of the feature to configure.
                        </DynamicResponseField>

                        <DynamicResponseField name="included" type="number">
                          Number of free units included. Balance resets to this each interval for consumable features.
                        </DynamicResponseField>

                        <DynamicResponseField name="unlimited" type="boolean">
                          If true, customer has unlimited access to this feature.
                        </DynamicResponseField>

                        <DynamicResponseField name="reset" type="object">
                          Reset configuration for consumable features. Omit for non-consumable features like seats.

                          <Expandable title="properties">
                            <DynamicResponseField name="interval" type="'one_off' | 'minute' | 'hour' | 'day' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                              Interval at which balance resets (e.g. 'month', 'year'). For consumable features only.
                            </DynamicResponseField>

                            <DynamicResponseField name="interval_count" type="number">
                              Number of intervals between resets. Defaults to 1.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="price" type="object">
                          Pricing for usage beyond included units. Omit for free features.

                          <Expandable title="properties">
                            <DynamicResponseField name="amount" type="number">
                              Price per billing\_units after included usage. Either 'amount' or 'tiers' is required.
                            </DynamicResponseField>

                            <DynamicResponseField name="additional_currencies" type="object[]">
                              Amounts in additional currencies for this flat price. The base 'amount' is in the org's default currency. Only valid with 'amount', not 'tiers'.

                              <Expandable title="properties">
                                <DynamicResponseField name="currency" type="string">
                                  Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                                </DynamicResponseField>

                                <DynamicResponseField name="amount" type="number">
                                  Price amount in this currency. Set explicitly per currency, not converted from the base amount.
                                </DynamicResponseField>
                              </Expandable>
                            </DynamicResponseField>

                            <DynamicResponseField name="tiers" type="object[]">
                              Tiered pricing. Either 'amount' or 'tiers' is required.

                              <Expandable title="properties">
                                <DynamicResponseField name="to" type="number" />

                                <DynamicResponseField name="amount" type="number" />

                                <DynamicResponseField name="flat_amount" type="number" />

                                <DynamicResponseField name="additional_currencies" type="object[]">
                                  <Expandable title="properties">
                                    <DynamicResponseField name="currency" type="string">
                                      Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                                    </DynamicResponseField>

                                    <DynamicResponseField name="amount" type="number">
                                      Per-unit amount for this tier in this currency.
                                    </DynamicResponseField>

                                    <DynamicResponseField name="flat_amount" type="number">
                                      Flat amount for this tier in this currency, if the tier uses one.
                                    </DynamicResponseField>
                                  </Expandable>
                                </DynamicResponseField>
                              </Expandable>
                            </DynamicResponseField>

                            <DynamicResponseField name="tier_behavior" type="'graduated' | 'volume'" />

                            <DynamicResponseField name="interval" type="'one_off' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                              Billing interval. For consumable features, should match reset.interval.
                            </DynamicResponseField>

                            <DynamicResponseField name="interval_count" type="number">
                              Number of intervals per billing cycle. Defaults to 1.
                            </DynamicResponseField>

                            <DynamicResponseField name="billing_units" type="number">
                              Units per price increment. Usage is rounded UP when billed (e.g. billing\_units=100 means 101 rounds to 200).
                            </DynamicResponseField>

                            <DynamicResponseField name="billing_method" type="'prepaid' | 'usage_based'">
                              'prepaid' for upfront payment (seats), 'usage\_based' for pay-as-you-go.
                            </DynamicResponseField>

                            <DynamicResponseField name="max_purchase" type="number | null">
                              Max units purchasable beyond included. E.g. included=100, max\_purchase=300 allows 400 total. Null for no limit.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="proration" type="object">
                          Proration settings for prepaid features. Controls mid-cycle quantity change billing.

                          <Expandable title="properties">
                            <DynamicResponseField name="on_increase" type="'bill_immediately' | 'prorate_immediately' | 'prorate_next_cycle' | 'bill_next_cycle'">
                              Billing behavior when quantity increases mid-cycle.
                            </DynamicResponseField>

                            <DynamicResponseField name="on_decrease" type="'prorate' | 'prorate_immediately' | 'prorate_next_cycle' | 'none' | 'no_prorations'">
                              Credit behavior when quantity decreases mid-cycle.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="rollover" type="object">
                          Rollover config for unused units. If set, unused included units carry over.

                          <Expandable title="properties">
                            <DynamicResponseField name="max" type="number">
                              Max rollover units. Omit for unlimited rollover.
                            </DynamicResponseField>

                            <DynamicResponseField name="max_percentage" type="number">
                              Maximum rollover as a percentage (0-100) of included + prepaid grant. Mutually exclusive with max.
                            </DynamicResponseField>

                            <DynamicResponseField name="expiry_duration_type" type="'month' | 'forever'">
                              When rolled over units expire.
                            </DynamicResponseField>

                            <DynamicResponseField name="expiry_duration_length" type="number">
                              Number of periods before expiry.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="remove_items" type="object[]">
                      Filters selecting items to remove from the plan.

                      <Expandable title="properties">
                        <DynamicResponseField name="feature_id" type="string">
                          Match items linked to this feature.
                        </DynamicResponseField>

                        <DynamicResponseField name="billing_method" type="'prepaid' | 'usage_based'">
                          Match items with this billing method (prepaid or usage\_based).
                        </DynamicResponseField>

                        <DynamicResponseField name="interval" type="'one_off' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                          Match items with this interval. Accepts either a BillingInterval (price-side) or a ResetInterval (reset-side, includes day/hour/minute) so price-less items keyed by reset.interval can be disambiguated.
                        </DynamicResponseField>

                        <DynamicResponseField name="interval_count" type="integer">
                          Match items with this interval\_count. Disambiguates between items that share an interval but differ in count.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="free_trial" type="object | null">
                      Free trial configuration for a plan.

                      <Expandable title="properties">
                        <DynamicResponseField name="duration_length" type="number">
                          Number of duration\_type periods the trial lasts.
                        </DynamicResponseField>

                        <DynamicResponseField name="duration_type" type="'day' | 'month' | 'year'">
                          Unit of time for the trial ('day', 'month', 'year').
                        </DynamicResponseField>

                        <DynamicResponseField name="card_required" type="boolean">
                          If true, payment method required to start trial. Customer is charged after trial ends.
                        </DynamicResponseField>

                        <DynamicResponseField name="on_end" type="'bill' | 'revert'">
                          Behavior when the trial ends. 'bill' charges the customer (default). 'revert' expires the trial and restores the customer's previous plan.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="billing_controls" type="object">
                      Override the plan's billing controls (auto top-ups, spend limits, usage limits, usage alerts, overage allowed) for this customer.

                      <Expandable title="properties">
                        <DynamicResponseField name="auto_topups" type="object[]">
                          List of auto top-up configurations per feature.

                          <Expandable title="properties">
                            <DynamicResponseField name="feature_id" type="string">
                              The ID of the feature (credit balance) to auto top-up.
                            </DynamicResponseField>

                            <DynamicResponseField name="enabled" type="boolean">
                              Whether auto top-up is enabled.
                            </DynamicResponseField>

                            <DynamicResponseField name="threshold" type="number">
                              When the balance drops below this threshold, an auto top-up will be purchased.
                            </DynamicResponseField>

                            <DynamicResponseField name="quantity" type="number">
                              Amount of credits to add per auto top-up.
                            </DynamicResponseField>

                            <DynamicResponseField name="purchase_limit" type="object">
                              Optional rate limit to cap how often auto top-ups occur. Pass count to set the current window's consumed top-ups.

                              <Expandable title="properties">
                                <DynamicResponseField name="interval" type="'hour' | 'day' | 'week' | 'month'">
                                  The time interval for the purchase limit window.
                                </DynamicResponseField>

                                <DynamicResponseField name="interval_count" type="number">
                                  Number of intervals in the purchase limit window.
                                </DynamicResponseField>

                                <DynamicResponseField name="limit" type="number">
                                  Maximum number of auto top-ups allowed within the interval.
                                </DynamicResponseField>

                                <DynamicResponseField name="count" type="number">
                                  Set the current window's consumed auto top-up count. Omit to leave runtime state unchanged.
                                </DynamicResponseField>
                              </Expandable>
                            </DynamicResponseField>

                            <DynamicResponseField name="invoice_mode" type="boolean">
                              When true, auto top-up creates a send\_invoice invoice instead of auto-charging.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="spend_limits" type="object[]">
                          List of overage spend limits per feature (caps overage spend).

                          <Expandable title="properties">
                            <DynamicResponseField name="feature_id" type="string">
                              Optional feature ID this spend limit applies to.
                            </DynamicResponseField>

                            <DynamicResponseField name="enabled" type="boolean">
                              Whether the overage spend limit is enabled.
                            </DynamicResponseField>

                            <DynamicResponseField name="limit_type" type="'absolute' | 'usage_percentage'">
                              How overage\_limit is interpreted: an absolute overage cap (default) or a percentage of the main-plan allowance.
                            </DynamicResponseField>

                            <DynamicResponseField name="overage_limit" type="number">
                              Overage cap for the feature: absolute units, or a percent (e.g. 120) when limit\_type is usage\_percentage.
                            </DynamicResponseField>

                            <DynamicResponseField name="skip_overage_billing" type="boolean">
                              When true, overage for this feature is not posted to Stripe. Usage tracking and balance resets still behave normally.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="usage_limits" type="object[]">
                          List of hard usage caps per feature (max units per interval).

                          <Expandable title="properties">
                            <DynamicResponseField name="feature_id" type="string">
                              The feature this usage limit applies to.
                            </DynamicResponseField>

                            <DynamicResponseField name="enabled" type="boolean">
                              Whether this usage limit is enabled.
                            </DynamicResponseField>

                            <DynamicResponseField name="limit" type="number">
                              Maximum units allowed per interval.
                            </DynamicResponseField>

                            <DynamicResponseField name="interval" type="'day' | 'week' | 'month' | 'year'">
                              Interval for the cap, aligned to the customer's billing cycle.
                            </DynamicResponseField>

                            <DynamicResponseField name="filter" type="object">
                              When set, only usage from events whose properties match counts toward this cap. Omit to count all usage of the feature.

                              <Expandable title="properties">
                                <DynamicResponseField name="properties" type="object" />
                              </Expandable>
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="usage_alerts" type="object[]">
                          List of usage alert configurations per feature.

                          <Expandable title="properties">
                            <DynamicResponseField name="feature_id" type="string">
                              The feature ID this alert applies to.
                            </DynamicResponseField>

                            <DynamicResponseField name="enabled" type="boolean">
                              Whether this usage alert is enabled.
                            </DynamicResponseField>

                            <DynamicResponseField name="threshold" type="number">
                              The threshold value that triggers the alert. For usage or remaining, this is an absolute count. For usage\_percentage or remaining\_percentage, this is a percentage (0-100).
                            </DynamicResponseField>

                            <DynamicResponseField name="threshold_type" type="'usage' | 'usage_percentage' | 'remaining' | 'remaining_percentage'">
                              Whether the threshold is an absolute count or a percentage of the usage allowance or remaining balance.
                            </DynamicResponseField>

                            <DynamicResponseField name="name" type="string">
                              Optional user-defined label to distinguish multiple alerts on the same feature.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="overage_allowed" type="object[]">
                          List of overage allowed controls per feature. When enabled, usage can exceed balance.

                          <Expandable title="properties">
                            <DynamicResponseField name="feature_id" type="string">
                              The feature ID this overage allowed control applies to.
                            </DynamicResponseField>

                            <DynamicResponseField name="enabled" type="boolean">
                              Whether overage is allowed for this feature.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="config" type="object">
              Miscellaneous plan-level configuration flags.

              <Expandable title="properties">
                <DynamicResponseField name="ignore_past_due" type="boolean">
                  If true, entitlements attached to this plan will still reset on schedule even when the customer's product is in a past\_due state.
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="billing_controls" type="object">
              Plan-level billing controls used as customer defaults.

              <Expandable title="properties">
                <DynamicResponseField name="auto_topups" type="object[]">
                  List of auto top-up configurations per feature.

                  <Expandable title="properties">
                    <DynamicResponseField name="feature_id" type="string">
                      The ID of the feature (credit balance) to auto top-up.
                    </DynamicResponseField>

                    <DynamicResponseField name="enabled" type="boolean">
                      Whether auto top-up is enabled.
                    </DynamicResponseField>

                    <DynamicResponseField name="threshold" type="number">
                      When the balance drops below this threshold, an auto top-up will be purchased.
                    </DynamicResponseField>

                    <DynamicResponseField name="quantity" type="number">
                      Amount of credits to add per auto top-up.
                    </DynamicResponseField>

                    <DynamicResponseField name="purchase_limit" type="object">
                      Optional rate limit to cap how often auto top-ups occur.

                      <Expandable title="properties">
                        <DynamicResponseField name="interval" type="'hour' | 'day' | 'week' | 'month'">
                          The time interval for the purchase limit window.
                        </DynamicResponseField>

                        <DynamicResponseField name="interval_count" type="number">
                          Number of intervals in the purchase limit window.
                        </DynamicResponseField>

                        <DynamicResponseField name="limit" type="number">
                          Maximum number of auto top-ups allowed within the interval.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="invoice_mode" type="boolean">
                      When true, auto top-up creates a send\_invoice invoice instead of auto-charging.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="spend_limits" type="object[]">
                  List of overage spend limits per feature (caps overage spend).

                  <Expandable title="properties">
                    <DynamicResponseField name="feature_id" type="string">
                      Optional feature ID this spend limit applies to.
                    </DynamicResponseField>

                    <DynamicResponseField name="enabled" type="boolean">
                      Whether the overage spend limit is enabled.
                    </DynamicResponseField>

                    <DynamicResponseField name="limit_type" type="'absolute' | 'usage_percentage'">
                      How overage\_limit is interpreted: an absolute overage cap (default) or a percentage of the main-plan allowance.
                    </DynamicResponseField>

                    <DynamicResponseField name="overage_limit" type="number">
                      Overage cap for the feature: absolute units, or a percent (e.g. 120) when limit\_type is usage\_percentage.
                    </DynamicResponseField>

                    <DynamicResponseField name="skip_overage_billing" type="boolean">
                      When true, overage for this feature is not posted to Stripe. Usage tracking and balance resets still behave normally.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="usage_limits" type="object[]">
                  List of hard usage caps per feature (max units per interval).

                  <Expandable title="properties">
                    <DynamicResponseField name="feature_id" type="string">
                      The feature this usage limit applies to.
                    </DynamicResponseField>

                    <DynamicResponseField name="enabled" type="boolean">
                      Whether this usage limit is enabled.
                    </DynamicResponseField>

                    <DynamicResponseField name="limit" type="number">
                      Maximum units allowed per interval.
                    </DynamicResponseField>

                    <DynamicResponseField name="interval" type="'day' | 'week' | 'month' | 'year'">
                      Interval for the cap, aligned to the customer's billing cycle.
                    </DynamicResponseField>

                    <DynamicResponseField name="filter" type="object">
                      When set, only usage from events whose properties match counts toward this cap. Omit to count all usage of the feature.

                      <Expandable title="properties">
                        <DynamicResponseField name="properties" type="object" />
                      </Expandable>
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="usage_alerts" type="object[]">
                  List of usage alert configurations per feature.

                  <Expandable title="properties">
                    <DynamicResponseField name="feature_id" type="string">
                      The feature ID this alert applies to.
                    </DynamicResponseField>

                    <DynamicResponseField name="enabled" type="boolean">
                      Whether this usage alert is enabled.
                    </DynamicResponseField>

                    <DynamicResponseField name="threshold" type="number">
                      The threshold value that triggers the alert. For usage or remaining, this is an absolute count. For usage\_percentage or remaining\_percentage, this is a percentage (0-100).
                    </DynamicResponseField>

                    <DynamicResponseField name="threshold_type" type="'usage' | 'usage_percentage' | 'remaining' | 'remaining_percentage'">
                      Whether the threshold is an absolute count or a percentage of the usage allowance or remaining balance.
                    </DynamicResponseField>

                    <DynamicResponseField name="name" type="string">
                      Optional user-defined label to distinguish multiple alerts on the same feature.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="overage_allowed" type="object[]">
                  List of overage allowed controls per feature. When enabled, usage can exceed balance.

                  <Expandable title="properties">
                    <DynamicResponseField name="feature_id" type="string">
                      The feature ID this overage allowed control applies to.
                    </DynamicResponseField>

                    <DynamicResponseField name="enabled" type="boolean">
                      Whether overage is allowed for this feature.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="metadata" type="object">
              Arbitrary key-value metadata defined by you for your own use. Shared across all versions of the plan.
            </DynamicResponseField>

            <DynamicResponseField name="customer_eligibility" type="object">
              <Expandable title="properties">
                <DynamicResponseField name="trial_available" type="boolean">
                  Whether the trial on this plan is available to this customer. For example, if the customer used the trial in the past, this will be false.
                </DynamicResponseField>

                <DynamicResponseField name="status" type="'active' | 'scheduled'">
                  The customer's current status with this plan. 'active' if attached, 'scheduled' if pending activation.
                </DynamicResponseField>

                <DynamicResponseField name="canceling" type="boolean">
                  Whether the customer's active instance of this plan is set to cancel.
                </DynamicResponseField>

                <DynamicResponseField name="trialing" type="boolean">
                  Whether the customer is currently on a free trial of this plan.
                </DynamicResponseField>

                <DynamicResponseField name="attach_action" type="'activate' | 'upgrade' | 'downgrade' | 'none' | 'purchase'">
                  The action that would occur if this plan were attached to the customer.
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>

        <DynamicResponseField name="plan_id" type="string">
          The unique identifier of the subscribed plan.
        </DynamicResponseField>

        <DynamicResponseField name="auto_enable" type="boolean">
          Whether the plan was automatically enabled for the customer.
        </DynamicResponseField>

        <DynamicResponseField name="add_on" type="boolean">
          Whether this is an add-on plan rather than a base subscription.
        </DynamicResponseField>

        <DynamicResponseField name="status" type="'active' | 'scheduled'">
          Current status of the subscription.
        </DynamicResponseField>

        <DynamicResponseField name="past_due" type="boolean">
          Whether the subscription has overdue payments.
        </DynamicResponseField>

        <DynamicResponseField name="canceled_at" type="number | null">
          Timestamp when the subscription was canceled, or null if not canceled.
        </DynamicResponseField>

        <DynamicResponseField name="expires_at" type="number | null">
          Timestamp when the subscription will expire, or null if no expiry set.
        </DynamicResponseField>

        <DynamicResponseField name="trial_ends_at" type="number | null">
          Timestamp when the trial period ends, or null if not on trial.
        </DynamicResponseField>

        <DynamicResponseField name="started_at" type="number">
          Timestamp when the subscription started.
        </DynamicResponseField>

        <DynamicResponseField name="current_period_start" type="number | null">
          Start timestamp of the current billing period.
        </DynamicResponseField>

        <DynamicResponseField name="current_period_end" type="number | null">
          End timestamp of the current billing period.
        </DynamicResponseField>

        <DynamicResponseField name="quantity" type="number">
          Number of units of this subscription (for per-seat plans).
        </DynamicResponseField>

        <DynamicResponseField name="scope" type="'customer' | 'entity'">
          Whether this subscription is attached at the customer level or entity level.
        </DynamicResponseField>
      </Expandable>
    </DynamicResponseField>

    <DynamicResponseField name="purchases" type="object[]">
      One-time purchases made by the customer.

      <Expandable title="properties">
        <DynamicResponseField name="plan" type="object">
          The full plan object if expanded.

          <Expandable title="properties">
            <DynamicResponseField name="id" type="string">
              Unique identifier for the plan.
            </DynamicResponseField>

            <DynamicResponseField name="name" type="string">
              Display name of the plan.
            </DynamicResponseField>

            <DynamicResponseField name="description" type="string | null">
              Optional description of the plan.
            </DynamicResponseField>

            <DynamicResponseField name="group" type="string | null">
              Group identifier for organizing related plans. Plans in the same group are mutually exclusive.
            </DynamicResponseField>

            <DynamicResponseField name="version" type="number">
              Version number of the plan. Incremented when plan configuration changes.
            </DynamicResponseField>

            <DynamicResponseField name="add_on" type="boolean">
              Whether this is an add-on plan that can be attached alongside a main plan.
            </DynamicResponseField>

            <DynamicResponseField name="auto_enable" type="boolean">
              If true, this plan is automatically attached when a customer is created. Used for free plans.
            </DynamicResponseField>

            <DynamicResponseField name="price" type="object | null">
              Base recurring price for the plan. Null for free plans or usage-only plans.

              <Expandable title="properties">
                <DynamicResponseField name="amount" type="number">
                  Base price amount for the plan.
                </DynamicResponseField>

                <DynamicResponseField name="additional_currencies" type="object[]">
                  Base price amounts in additional currencies. The base 'amount' is in the org's default currency.

                  <Expandable title="properties">
                    <DynamicResponseField name="currency" type="string">
                      Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                    </DynamicResponseField>

                    <DynamicResponseField name="amount" type="number">
                      Price amount in this currency. Set explicitly per currency, not converted from the base amount.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="interval" type="'one_off' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                  Billing interval (e.g. 'month', 'year').
                </DynamicResponseField>

                <DynamicResponseField name="interval_count" type="number">
                  Number of intervals per billing cycle. Defaults to 1.
                </DynamicResponseField>

                <DynamicResponseField name="display" type="object">
                  Display text for showing this price in pricing pages.

                  <Expandable title="properties">
                    <DynamicResponseField name="primary_text" type="string">
                      Main display text (e.g. '\$10' or '100 messages').
                    </DynamicResponseField>

                    <DynamicResponseField name="secondary_text" type="string">
                      Secondary display text (e.g. 'per month' or 'then \$0.5 per 100').
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="items" type="object[]">
              Feature configurations included in this plan. Each item defines included units, pricing, and reset behavior for a feature.

              <Expandable title="properties">
                <DynamicResponseField name="feature_id" type="string">
                  The ID of the feature this item configures.
                </DynamicResponseField>

                <DynamicResponseField name="feature" type="object">
                  The full feature object if expanded.

                  <Expandable title="properties">
                    <DynamicResponseField name="id" type="string">
                      The ID of the feature, used to refer to it in other API calls like /track or /check.
                    </DynamicResponseField>

                    <DynamicResponseField name="name" type="string | null">
                      The name of the feature.
                    </DynamicResponseField>

                    <DynamicResponseField name="type" type="'static' | 'boolean' | 'single_use' | 'continuous_use' | 'credit_system' | 'ai_credit_system'">
                      The type of the feature
                    </DynamicResponseField>

                    <DynamicResponseField name="display" type="object | null">
                      Singular and plural display names for the feature.

                      <Expandable title="properties">
                        <DynamicResponseField name="singular" type="string">
                          The singular display name for the feature.
                        </DynamicResponseField>

                        <DynamicResponseField name="plural" type="string">
                          The plural display name for the feature.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="credit_schema" type="object[] | null">
                      Credit cost schema for credit system features.

                      <Expandable title="properties">
                        <DynamicResponseField name="metered_feature_id" type="string">
                          The ID of the metered feature (should be a single\_use feature).
                        </DynamicResponseField>

                        <DynamicResponseField name="credit_cost" type="number">
                          The credit cost of the metered feature.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="archived" type="boolean | null">
                      Whether or not the feature is archived.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="included" type="number">
                  Number of free units included. For consumable features, balance resets to this number each interval.
                </DynamicResponseField>

                <DynamicResponseField name="unlimited" type="boolean">
                  Whether the customer has unlimited access to this feature.
                </DynamicResponseField>

                <DynamicResponseField name="reset" type="object | null">
                  Reset configuration for consumable features. Null for non-consumable features like seats where usage persists across billing cycles.

                  <Expandable title="properties">
                    <DynamicResponseField name="interval" type="'one_off' | 'minute' | 'hour' | 'day' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                      The interval at which the feature balance resets (e.g. 'month', 'year'). For consumable features, usage resets to 0 and included units are restored.
                    </DynamicResponseField>

                    <DynamicResponseField name="interval_count" type="number">
                      Number of intervals between resets. Defaults to 1.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="price" type="object | null">
                  Pricing configuration for usage beyond included units. Null if feature is entirely free.

                  <Expandable title="properties">
                    <DynamicResponseField name="amount" type="number">
                      Price per billing\_units after included usage is consumed. Mutually exclusive with tiers.
                    </DynamicResponseField>

                    <DynamicResponseField name="additional_currencies" type="object[]">
                      Amounts in additional currencies for this flat price. The base 'amount' is in the org's default currency. Only valid with 'amount', not 'tiers' (tiered prices carry per-currency amounts on each tier).

                      <Expandable title="properties">
                        <DynamicResponseField name="currency" type="string">
                          Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                        </DynamicResponseField>

                        <DynamicResponseField name="amount" type="number">
                          Price amount in this currency. Set explicitly per currency, not converted from the base amount.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="tiers" type="object[]">
                      Tiered pricing configuration. Each tier's 'to' INCLUDES the included amount. Either 'tiers' or 'amount' is required.

                      <Expandable title="properties">
                        <DynamicResponseField name="to" type="number" />

                        <DynamicResponseField name="amount" type="number" />

                        <DynamicResponseField name="flat_amount" type="number" />

                        <DynamicResponseField name="additional_currencies" type="object[]">
                          <Expandable title="properties">
                            <DynamicResponseField name="currency" type="string">
                              Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                            </DynamicResponseField>

                            <DynamicResponseField name="amount" type="number">
                              Per-unit amount for this tier in this currency.
                            </DynamicResponseField>

                            <DynamicResponseField name="flat_amount" type="number">
                              Flat amount for this tier in this currency, if the tier uses one.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="tier_behavior" type="'graduated' | 'volume'" />

                    <DynamicResponseField name="interval" type="'one_off' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                      Billing interval for this price. For consumable features, should match reset.interval.
                    </DynamicResponseField>

                    <DynamicResponseField name="interval_count" type="number">
                      Number of intervals per billing cycle. Defaults to 1.
                    </DynamicResponseField>

                    <DynamicResponseField name="billing_units" type="number">
                      Number of units per price increment. Usage is rounded UP to the nearest billing\_units when billed (e.g. billing\_units=100 means 101 usage rounds to 200).
                    </DynamicResponseField>

                    <DynamicResponseField name="billing_method" type="'prepaid' | 'usage_based'">
                      'prepaid' for features like seats where customers pay upfront, 'usage\_based' for pay-as-you-go after included usage.
                    </DynamicResponseField>

                    <DynamicResponseField name="max_purchase" type="number | null">
                      Maximum units a customer can purchase beyond included. E.g. if included=100 and max\_purchase=300, customer can use up to 400 total before usage is capped. Null for no limit.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="display" type="object">
                  Display text for showing this item in pricing pages.

                  <Expandable title="properties">
                    <DynamicResponseField name="primary_text" type="string">
                      Main display text (e.g. '\$10' or '100 messages').
                    </DynamicResponseField>

                    <DynamicResponseField name="secondary_text" type="string">
                      Secondary display text (e.g. 'per month' or 'then \$0.5 per 100').
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="rollover" type="object">
                  Rollover configuration for unused units. If set, unused included units roll over to the next period.

                  <Expandable title="properties">
                    <DynamicResponseField name="max" type="number | null">
                      Maximum rollover units. Null for unlimited rollover.
                    </DynamicResponseField>

                    <DynamicResponseField name="max_percentage" type="number | null">
                      Maximum rollover as a percentage (0-100) of included + prepaid grant. Mutually exclusive with max.
                    </DynamicResponseField>

                    <DynamicResponseField name="expiry_duration_type" type="'month' | 'forever'">
                      When rolled over units expire.
                    </DynamicResponseField>

                    <DynamicResponseField name="expiry_duration_length" type="number">
                      Number of periods before expiry.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="free_trial" type="object">
              Free trial configuration. If set, new customers can try this plan before being charged.

              <Expandable title="properties">
                <DynamicResponseField name="duration_length" type="number">
                  Number of duration\_type periods the trial lasts.
                </DynamicResponseField>

                <DynamicResponseField name="duration_type" type="'day' | 'month' | 'year'">
                  Unit of time for the trial duration ('day', 'month', 'year').
                </DynamicResponseField>

                <DynamicResponseField name="card_required" type="boolean">
                  Whether a payment method is required to start the trial. If true, customer will be charged after trial ends.
                </DynamicResponseField>

                <DynamicResponseField name="on_end" type="'bill' | 'revert'">
                  Behavior when the trial ends. 'bill' charges the customer (default). 'revert' expires the trial and restores the customer's previous plan.
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="created_at" type="number">
              Unix timestamp (ms) when the plan was created.
            </DynamicResponseField>

            <DynamicResponseField name="env" type="'sandbox' | 'live'">
              Environment this plan belongs to ('sandbox' or 'live').
            </DynamicResponseField>

            <DynamicResponseField name="archived" type="boolean">
              Whether the plan is archived. Archived plans cannot be attached to new customers.
            </DynamicResponseField>

            <DynamicResponseField name="base_variant_id" type="string | null">
              Deprecated. Use variant\_details.base\_plan\_id instead. If this is a variant, the ID of the base plan it was created from.
            </DynamicResponseField>

            <DynamicResponseField name="variant_details" type="object">
              Details about how this variant relates to its latest base plan.

              <Expandable title="properties">
                <DynamicResponseField name="base_plan_id" type="string">
                  The ID of the base plan this variant was derived from.
                </DynamicResponseField>

                <DynamicResponseField name="customize" type="object">
                  The customization that transforms the base plan into this variant.

                  <Expandable title="properties">
                    <DynamicResponseField name="price" type="object | null">
                      Base price configuration for a plan.

                      <Expandable title="properties">
                        <DynamicResponseField name="amount" type="number">
                          Base price amount for the plan.
                        </DynamicResponseField>

                        <DynamicResponseField name="interval" type="'one_off' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                          Billing interval (e.g. 'month', 'year').
                        </DynamicResponseField>

                        <DynamicResponseField name="interval_count" type="number">
                          Number of intervals per billing cycle. Defaults to 1.
                        </DynamicResponseField>

                        <DynamicResponseField name="additional_currencies" type="object[]">
                          Base price amounts in additional currencies. The base 'amount' is in the org's default currency.

                          <Expandable title="properties">
                            <DynamicResponseField name="currency" type="string">
                              Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                            </DynamicResponseField>

                            <DynamicResponseField name="amount" type="number">
                              Price amount in this currency. Set explicitly per currency, not converted from the base amount.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="add_items" type="object[]">
                      Items to add to the plan.

                      <Expandable title="properties">
                        <DynamicResponseField name="feature_id" type="string">
                          The ID of the feature to configure.
                        </DynamicResponseField>

                        <DynamicResponseField name="included" type="number">
                          Number of free units included. Balance resets to this each interval for consumable features.
                        </DynamicResponseField>

                        <DynamicResponseField name="unlimited" type="boolean">
                          If true, customer has unlimited access to this feature.
                        </DynamicResponseField>

                        <DynamicResponseField name="reset" type="object">
                          Reset configuration for consumable features. Omit for non-consumable features like seats.

                          <Expandable title="properties">
                            <DynamicResponseField name="interval" type="'one_off' | 'minute' | 'hour' | 'day' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                              Interval at which balance resets (e.g. 'month', 'year'). For consumable features only.
                            </DynamicResponseField>

                            <DynamicResponseField name="interval_count" type="number">
                              Number of intervals between resets. Defaults to 1.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="price" type="object">
                          Pricing for usage beyond included units. Omit for free features.

                          <Expandable title="properties">
                            <DynamicResponseField name="amount" type="number">
                              Price per billing\_units after included usage. Either 'amount' or 'tiers' is required.
                            </DynamicResponseField>

                            <DynamicResponseField name="additional_currencies" type="object[]">
                              Amounts in additional currencies for this flat price. The base 'amount' is in the org's default currency. Only valid with 'amount', not 'tiers'.

                              <Expandable title="properties">
                                <DynamicResponseField name="currency" type="string">
                                  Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                                </DynamicResponseField>

                                <DynamicResponseField name="amount" type="number">
                                  Price amount in this currency. Set explicitly per currency, not converted from the base amount.
                                </DynamicResponseField>
                              </Expandable>
                            </DynamicResponseField>

                            <DynamicResponseField name="tiers" type="object[]">
                              Tiered pricing. Either 'amount' or 'tiers' is required.

                              <Expandable title="properties">
                                <DynamicResponseField name="to" type="number" />

                                <DynamicResponseField name="amount" type="number" />

                                <DynamicResponseField name="flat_amount" type="number" />

                                <DynamicResponseField name="additional_currencies" type="object[]">
                                  <Expandable title="properties">
                                    <DynamicResponseField name="currency" type="string">
                                      Three-letter Stripe-supported currency code (e.g. 'eur', 'gbp').
                                    </DynamicResponseField>

                                    <DynamicResponseField name="amount" type="number">
                                      Per-unit amount for this tier in this currency.
                                    </DynamicResponseField>

                                    <DynamicResponseField name="flat_amount" type="number">
                                      Flat amount for this tier in this currency, if the tier uses one.
                                    </DynamicResponseField>
                                  </Expandable>
                                </DynamicResponseField>
                              </Expandable>
                            </DynamicResponseField>

                            <DynamicResponseField name="tier_behavior" type="'graduated' | 'volume'" />

                            <DynamicResponseField name="interval" type="'one_off' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                              Billing interval. For consumable features, should match reset.interval.
                            </DynamicResponseField>

                            <DynamicResponseField name="interval_count" type="number">
                              Number of intervals per billing cycle. Defaults to 1.
                            </DynamicResponseField>

                            <DynamicResponseField name="billing_units" type="number">
                              Units per price increment. Usage is rounded UP when billed (e.g. billing\_units=100 means 101 rounds to 200).
                            </DynamicResponseField>

                            <DynamicResponseField name="billing_method" type="'prepaid' | 'usage_based'">
                              'prepaid' for upfront payment (seats), 'usage\_based' for pay-as-you-go.
                            </DynamicResponseField>

                            <DynamicResponseField name="max_purchase" type="number | null">
                              Max units purchasable beyond included. E.g. included=100, max\_purchase=300 allows 400 total. Null for no limit.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="proration" type="object">
                          Proration settings for prepaid features. Controls mid-cycle quantity change billing.

                          <Expandable title="properties">
                            <DynamicResponseField name="on_increase" type="'bill_immediately' | 'prorate_immediately' | 'prorate_next_cycle' | 'bill_next_cycle'">
                              Billing behavior when quantity increases mid-cycle.
                            </DynamicResponseField>

                            <DynamicResponseField name="on_decrease" type="'prorate' | 'prorate_immediately' | 'prorate_next_cycle' | 'none' | 'no_prorations'">
                              Credit behavior when quantity decreases mid-cycle.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="rollover" type="object">
                          Rollover config for unused units. If set, unused included units carry over.

                          <Expandable title="properties">
                            <DynamicResponseField name="max" type="number">
                              Max rollover units. Omit for unlimited rollover.
                            </DynamicResponseField>

                            <DynamicResponseField name="max_percentage" type="number">
                              Maximum rollover as a percentage (0-100) of included + prepaid grant. Mutually exclusive with max.
                            </DynamicResponseField>

                            <DynamicResponseField name="expiry_duration_type" type="'month' | 'forever'">
                              When rolled over units expire.
                            </DynamicResponseField>

                            <DynamicResponseField name="expiry_duration_length" type="number">
                              Number of periods before expiry.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="remove_items" type="object[]">
                      Filters selecting items to remove from the plan.

                      <Expandable title="properties">
                        <DynamicResponseField name="feature_id" type="string">
                          Match items linked to this feature.
                        </DynamicResponseField>

                        <DynamicResponseField name="billing_method" type="'prepaid' | 'usage_based'">
                          Match items with this billing method (prepaid or usage\_based).
                        </DynamicResponseField>

                        <DynamicResponseField name="interval" type="'one_off' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                          Match items with this interval. Accepts either a BillingInterval (price-side) or a ResetInterval (reset-side, includes day/hour/minute) so price-less items keyed by reset.interval can be disambiguated.
                        </DynamicResponseField>

                        <DynamicResponseField name="interval_count" type="integer">
                          Match items with this interval\_count. Disambiguates between items that share an interval but differ in count.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="free_trial" type="object | null">
                      Free trial configuration for a plan.

                      <Expandable title="properties">
                        <DynamicResponseField name="duration_length" type="number">
                          Number of duration\_type periods the trial lasts.
                        </DynamicResponseField>

                        <DynamicResponseField name="duration_type" type="'day' | 'month' | 'year'">
                          Unit of time for the trial ('day', 'month', 'year').
                        </DynamicResponseField>

                        <DynamicResponseField name="card_required" type="boolean">
                          If true, payment method required to start trial. Customer is charged after trial ends.
                        </DynamicResponseField>

                        <DynamicResponseField name="on_end" type="'bill' | 'revert'">
                          Behavior when the trial ends. 'bill' charges the customer (default). 'revert' expires the trial and restores the customer's previous plan.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="billing_controls" type="object">
                      Override the plan's billing controls (auto top-ups, spend limits, usage limits, usage alerts, overage allowed) for this customer.

                      <Expandable title="properties">
                        <DynamicResponseField name="auto_topups" type="object[]">
                          List of auto top-up configurations per feature.

                          <Expandable title="properties">
                            <DynamicResponseField name="feature_id" type="string">
                              The ID of the feature (credit balance) to auto top-up.
                            </DynamicResponseField>

                            <DynamicResponseField name="enabled" type="boolean">
                              Whether auto top-up is enabled.
                            </DynamicResponseField>

                            <DynamicResponseField name="threshold" type="number">
                              When the balance drops below this threshold, an auto top-up will be purchased.
                            </DynamicResponseField>

                            <DynamicResponseField name="quantity" type="number">
                              Amount of credits to add per auto top-up.
                            </DynamicResponseField>

                            <DynamicResponseField name="purchase_limit" type="object">
                              Optional rate limit to cap how often auto top-ups occur. Pass count to set the current window's consumed top-ups.

                              <Expandable title="properties">
                                <DynamicResponseField name="interval" type="'hour' | 'day' | 'week' | 'month'">
                                  The time interval for the purchase limit window.
                                </DynamicResponseField>

                                <DynamicResponseField name="interval_count" type="number">
                                  Number of intervals in the purchase limit window.
                                </DynamicResponseField>

                                <DynamicResponseField name="limit" type="number">
                                  Maximum number of auto top-ups allowed within the interval.
                                </DynamicResponseField>

                                <DynamicResponseField name="count" type="number">
                                  Set the current window's consumed auto top-up count. Omit to leave runtime state unchanged.
                                </DynamicResponseField>
                              </Expandable>
                            </DynamicResponseField>

                            <DynamicResponseField name="invoice_mode" type="boolean">
                              When true, auto top-up creates a send\_invoice invoice instead of auto-charging.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="spend_limits" type="object[]">
                          List of overage spend limits per feature (caps overage spend).

                          <Expandable title="properties">
                            <DynamicResponseField name="feature_id" type="string">
                              Optional feature ID this spend limit applies to.
                            </DynamicResponseField>

                            <DynamicResponseField name="enabled" type="boolean">
                              Whether the overage spend limit is enabled.
                            </DynamicResponseField>

                            <DynamicResponseField name="limit_type" type="'absolute' | 'usage_percentage'">
                              How overage\_limit is interpreted: an absolute overage cap (default) or a percentage of the main-plan allowance.
                            </DynamicResponseField>

                            <DynamicResponseField name="overage_limit" type="number">
                              Overage cap for the feature: absolute units, or a percent (e.g. 120) when limit\_type is usage\_percentage.
                            </DynamicResponseField>

                            <DynamicResponseField name="skip_overage_billing" type="boolean">
                              When true, overage for this feature is not posted to Stripe. Usage tracking and balance resets still behave normally.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="usage_limits" type="object[]">
                          List of hard usage caps per feature (max units per interval).

                          <Expandable title="properties">
                            <DynamicResponseField name="feature_id" type="string">
                              The feature this usage limit applies to.
                            </DynamicResponseField>

                            <DynamicResponseField name="enabled" type="boolean">
                              Whether this usage limit is enabled.
                            </DynamicResponseField>

                            <DynamicResponseField name="limit" type="number">
                              Maximum units allowed per interval.
                            </DynamicResponseField>

                            <DynamicResponseField name="interval" type="'day' | 'week' | 'month' | 'year'">
                              Interval for the cap, aligned to the customer's billing cycle.
                            </DynamicResponseField>

                            <DynamicResponseField name="filter" type="object">
                              When set, only usage from events whose properties match counts toward this cap. Omit to count all usage of the feature.

                              <Expandable title="properties">
                                <DynamicResponseField name="properties" type="object" />
                              </Expandable>
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="usage_alerts" type="object[]">
                          List of usage alert configurations per feature.

                          <Expandable title="properties">
                            <DynamicResponseField name="feature_id" type="string">
                              The feature ID this alert applies to.
                            </DynamicResponseField>

                            <DynamicResponseField name="enabled" type="boolean">
                              Whether this usage alert is enabled.
                            </DynamicResponseField>

                            <DynamicResponseField name="threshold" type="number">
                              The threshold value that triggers the alert. For usage or remaining, this is an absolute count. For usage\_percentage or remaining\_percentage, this is a percentage (0-100).
                            </DynamicResponseField>

                            <DynamicResponseField name="threshold_type" type="'usage' | 'usage_percentage' | 'remaining' | 'remaining_percentage'">
                              Whether the threshold is an absolute count or a percentage of the usage allowance or remaining balance.
                            </DynamicResponseField>

                            <DynamicResponseField name="name" type="string">
                              Optional user-defined label to distinguish multiple alerts on the same feature.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>

                        <DynamicResponseField name="overage_allowed" type="object[]">
                          List of overage allowed controls per feature. When enabled, usage can exceed balance.

                          <Expandable title="properties">
                            <DynamicResponseField name="feature_id" type="string">
                              The feature ID this overage allowed control applies to.
                            </DynamicResponseField>

                            <DynamicResponseField name="enabled" type="boolean">
                              Whether overage is allowed for this feature.
                            </DynamicResponseField>
                          </Expandable>
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="config" type="object">
              Miscellaneous plan-level configuration flags.

              <Expandable title="properties">
                <DynamicResponseField name="ignore_past_due" type="boolean">
                  If true, entitlements attached to this plan will still reset on schedule even when the customer's product is in a past\_due state.
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="billing_controls" type="object">
              Plan-level billing controls used as customer defaults.

              <Expandable title="properties">
                <DynamicResponseField name="auto_topups" type="object[]">
                  List of auto top-up configurations per feature.

                  <Expandable title="properties">
                    <DynamicResponseField name="feature_id" type="string">
                      The ID of the feature (credit balance) to auto top-up.
                    </DynamicResponseField>

                    <DynamicResponseField name="enabled" type="boolean">
                      Whether auto top-up is enabled.
                    </DynamicResponseField>

                    <DynamicResponseField name="threshold" type="number">
                      When the balance drops below this threshold, an auto top-up will be purchased.
                    </DynamicResponseField>

                    <DynamicResponseField name="quantity" type="number">
                      Amount of credits to add per auto top-up.
                    </DynamicResponseField>

                    <DynamicResponseField name="purchase_limit" type="object">
                      Optional rate limit to cap how often auto top-ups occur.

                      <Expandable title="properties">
                        <DynamicResponseField name="interval" type="'hour' | 'day' | 'week' | 'month'">
                          The time interval for the purchase limit window.
                        </DynamicResponseField>

                        <DynamicResponseField name="interval_count" type="number">
                          Number of intervals in the purchase limit window.
                        </DynamicResponseField>

                        <DynamicResponseField name="limit" type="number">
                          Maximum number of auto top-ups allowed within the interval.
                        </DynamicResponseField>
                      </Expandable>
                    </DynamicResponseField>

                    <DynamicResponseField name="invoice_mode" type="boolean">
                      When true, auto top-up creates a send\_invoice invoice instead of auto-charging.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="spend_limits" type="object[]">
                  List of overage spend limits per feature (caps overage spend).

                  <Expandable title="properties">
                    <DynamicResponseField name="feature_id" type="string">
                      Optional feature ID this spend limit applies to.
                    </DynamicResponseField>

                    <DynamicResponseField name="enabled" type="boolean">
                      Whether the overage spend limit is enabled.
                    </DynamicResponseField>

                    <DynamicResponseField name="limit_type" type="'absolute' | 'usage_percentage'">
                      How overage\_limit is interpreted: an absolute overage cap (default) or a percentage of the main-plan allowance.
                    </DynamicResponseField>

                    <DynamicResponseField name="overage_limit" type="number">
                      Overage cap for the feature: absolute units, or a percent (e.g. 120) when limit\_type is usage\_percentage.
                    </DynamicResponseField>

                    <DynamicResponseField name="skip_overage_billing" type="boolean">
                      When true, overage for this feature is not posted to Stripe. Usage tracking and balance resets still behave normally.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="usage_limits" type="object[]">
                  List of hard usage caps per feature (max units per interval).

                  <Expandable title="properties">
                    <DynamicResponseField name="feature_id" type="string">
                      The feature this usage limit applies to.
                    </DynamicResponseField>

                    <DynamicResponseField name="enabled" type="boolean">
                      Whether this usage limit is enabled.
                    </DynamicResponseField>

                    <DynamicResponseField name="limit" type="number">
                      Maximum units allowed per interval.
                    </DynamicResponseField>

                    <DynamicResponseField name="interval" type="'day' | 'week' | 'month' | 'year'">
                      Interval for the cap, aligned to the customer's billing cycle.
                    </DynamicResponseField>

                    <DynamicResponseField name="filter" type="object">
                      When set, only usage from events whose properties match counts toward this cap. Omit to count all usage of the feature.

                      <Expandable title="properties">
                        <DynamicResponseField name="properties" type="object" />
                      </Expandable>
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="usage_alerts" type="object[]">
                  List of usage alert configurations per feature.

                  <Expandable title="properties">
                    <DynamicResponseField name="feature_id" type="string">
                      The feature ID this alert applies to.
                    </DynamicResponseField>

                    <DynamicResponseField name="enabled" type="boolean">
                      Whether this usage alert is enabled.
                    </DynamicResponseField>

                    <DynamicResponseField name="threshold" type="number">
                      The threshold value that triggers the alert. For usage or remaining, this is an absolute count. For usage\_percentage or remaining\_percentage, this is a percentage (0-100).
                    </DynamicResponseField>

                    <DynamicResponseField name="threshold_type" type="'usage' | 'usage_percentage' | 'remaining' | 'remaining_percentage'">
                      Whether the threshold is an absolute count or a percentage of the usage allowance or remaining balance.
                    </DynamicResponseField>

                    <DynamicResponseField name="name" type="string">
                      Optional user-defined label to distinguish multiple alerts on the same feature.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="overage_allowed" type="object[]">
                  List of overage allowed controls per feature. When enabled, usage can exceed balance.

                  <Expandable title="properties">
                    <DynamicResponseField name="feature_id" type="string">
                      The feature ID this overage allowed control applies to.
                    </DynamicResponseField>

                    <DynamicResponseField name="enabled" type="boolean">
                      Whether overage is allowed for this feature.
                    </DynamicResponseField>
                  </Expandable>
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="metadata" type="object">
              Arbitrary key-value metadata defined by you for your own use. Shared across all versions of the plan.
            </DynamicResponseField>

            <DynamicResponseField name="customer_eligibility" type="object">
              <Expandable title="properties">
                <DynamicResponseField name="trial_available" type="boolean">
                  Whether the trial on this plan is available to this customer. For example, if the customer used the trial in the past, this will be false.
                </DynamicResponseField>

                <DynamicResponseField name="status" type="'active' | 'scheduled'">
                  The customer's current status with this plan. 'active' if attached, 'scheduled' if pending activation.
                </DynamicResponseField>

                <DynamicResponseField name="canceling" type="boolean">
                  Whether the customer's active instance of this plan is set to cancel.
                </DynamicResponseField>

                <DynamicResponseField name="trialing" type="boolean">
                  Whether the customer is currently on a free trial of this plan.
                </DynamicResponseField>

                <DynamicResponseField name="attach_action" type="'activate' | 'upgrade' | 'downgrade' | 'none' | 'purchase'">
                  The action that would occur if this plan were attached to the customer.
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>

        <DynamicResponseField name="plan_id" type="string">
          The unique identifier of the purchased plan.
        </DynamicResponseField>

        <DynamicResponseField name="expires_at" type="number | null">
          Timestamp when the purchase expires, or null for lifetime access.
        </DynamicResponseField>

        <DynamicResponseField name="started_at" type="number">
          Timestamp when the purchase was made.
        </DynamicResponseField>

        <DynamicResponseField name="quantity" type="number">
          Number of units purchased.
        </DynamicResponseField>

        <DynamicResponseField name="scope" type="'customer' | 'entity'">
          Whether this purchase is attached at the customer level or entity level.
        </DynamicResponseField>
      </Expandable>
    </DynamicResponseField>

    <DynamicResponseField name="licenses" type="object[]">
      License seat pools granted by the customer's plans, with seat counts.

      <Expandable title="properties">
        <DynamicResponseField name="license_plan_id" type="string">
          The plan offered as an assignable license.
        </DynamicResponseField>

        <DynamicResponseField name="parent_plan_id" type="string">
          The plan that offers this license.
        </DynamicResponseField>

        <DynamicResponseField name="license_plan_name" type="string">
          Display name of the license plan.
        </DynamicResponseField>

        <DynamicResponseField name="granted" type="number">
          Total seats the customer has for this license, included plus paid.
        </DynamicResponseField>

        <DynamicResponseField name="usage" type="number">
          Seats currently assigned to entities.
        </DynamicResponseField>

        <DynamicResponseField name="remaining" type="number">
          Seats still available to assign.
        </DynamicResponseField>

        <DynamicResponseField name="paid_quantity" type="number">
          Paid seats purchased on top of the plan's included amount.
        </DynamicResponseField>
      </Expandable>
    </DynamicResponseField>

    <DynamicResponseField name="balances.{key}" type="object">
      Feature balances keyed by feature ID, showing usage limits and remaining amounts.

      <Expandable title="properties">
        <DynamicResponseField name="feature_id" type="string">
          The feature ID this balance is for.
        </DynamicResponseField>

        <DynamicResponseField name="feature" type="object">
          The full feature object if expanded.

          <Expandable title="properties">
            <DynamicResponseField name="id" type="string">
              The unique identifier for this feature, used in /check and /track calls.
            </DynamicResponseField>

            <DynamicResponseField name="name" type="string">
              Human-readable name displayed in the dashboard and billing UI.
            </DynamicResponseField>

            <DynamicResponseField name="type" type="'boolean' | 'metered' | 'credit_system' | 'ai_credit_system'">
              Feature type: 'boolean' for on/off access, 'metered' for usage-tracked features, 'credit\_system' for unified credit pools, 'ai\_credit\_system' for model-based token pricing.
            </DynamicResponseField>

            <DynamicResponseField name="consumable" type="boolean">
              For metered features: true if usage resets periodically (API calls, credits), false if allocated persistently (seats, storage).
            </DynamicResponseField>

            <DynamicResponseField name="event_names" type="string[]">
              Event names that trigger this feature's balance. Allows multiple features to respond to a single event.
            </DynamicResponseField>

            <DynamicResponseField name="credit_schema" type="object[]">
              For credit\_system features: maps metered features to their credit costs.

              <Expandable title="properties">
                <DynamicResponseField name="metered_feature_id" type="string">
                  ID of the metered feature that draws from this credit system.
                </DynamicResponseField>

                <DynamicResponseField name="credit_cost" type="number">
                  Credits consumed per unit of the metered feature.
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="model_markups.{key}" type="object | null">
              Per-model markup overrides for AI credit systems.

              <Expandable title="properties">
                <DynamicResponseField name="markup" type="number" />

                <DynamicResponseField name="input_cost" type="number" />

                <DynamicResponseField name="output_cost" type="number" />
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="default_markup" type="number">
              Default percentage markup for AI credit systems. Use -100 to make usage free.
            </DynamicResponseField>

            <DynamicResponseField name="provider_markups.{key}" type="object | null">
              Per-provider default markup percentages for AI credit systems.

              <Expandable title="properties">
                <DynamicResponseField name="markup" type="number" />
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="display" type="object">
              Display names for the feature in billing UI and customer-facing components.

              <Expandable title="properties">
                <DynamicResponseField name="singular" type="string | null">
                  Singular form for UI display (e.g., 'API call', 'seat').
                </DynamicResponseField>

                <DynamicResponseField name="plural" type="string | null">
                  Plural form for UI display (e.g., 'API calls', 'seats').
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="archived" type="boolean">
              Whether the feature is archived and hidden from the dashboard.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>

        <DynamicResponseField name="granted" type="number">
          Total balance granted (included + prepaid).
        </DynamicResponseField>

        <DynamicResponseField name="remaining" type="number">
          Remaining balance available for use.
        </DynamicResponseField>

        <DynamicResponseField name="usage" type="number">
          Total usage consumed in the current period.
        </DynamicResponseField>

        <DynamicResponseField name="unlimited" type="boolean">
          Whether this feature has unlimited usage.
        </DynamicResponseField>

        <DynamicResponseField name="overage_allowed" type="boolean">
          Whether usage beyond the granted balance is allowed (with overage charges).
        </DynamicResponseField>

        <DynamicResponseField name="max_purchase" type="number | null">
          Maximum quantity that can be purchased as a top-up, or null for unlimited.
        </DynamicResponseField>

        <DynamicResponseField name="next_reset_at" type="number | null">
          Timestamp when the balance will reset, or null for no reset.
        </DynamicResponseField>

        <DynamicResponseField name="breakdown" type="object[]">
          Detailed breakdown of balance sources when stacking multiple plans or grants.

          <Expandable title="properties">
            <DynamicResponseField name="id" type="string">
              The unique identifier for this balance breakdown.
            </DynamicResponseField>

            <DynamicResponseField name="plan_id" type="string | null">
              The plan ID this balance originates from, or null for standalone balances.
            </DynamicResponseField>

            <DynamicResponseField name="included_grant" type="number">
              Amount granted from the plan's included usage.
            </DynamicResponseField>

            <DynamicResponseField name="prepaid_grant" type="number">
              Amount granted from prepaid purchases or top-ups.
            </DynamicResponseField>

            <DynamicResponseField name="remaining" type="number">
              Remaining balance available for use.
            </DynamicResponseField>

            <DynamicResponseField name="usage" type="number">
              Amount consumed in the current period.
            </DynamicResponseField>

            <DynamicResponseField name="unlimited" type="boolean">
              Whether this balance has unlimited usage.
            </DynamicResponseField>

            <DynamicResponseField name="reset" type="object | null">
              Reset configuration for this balance, or null if no reset.

              <Expandable title="properties">
                <DynamicResponseField name="interval" type="'one_off' | 'minute' | 'hour' | 'day' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
                  The reset interval (hour, day, week, month, etc.) or 'multiple' if combined from different intervals.
                </DynamicResponseField>

                <DynamicResponseField name="interval_count" type="number">
                  Number of intervals between resets (eg. 2 for bi-monthly).
                </DynamicResponseField>

                <DynamicResponseField name="resets_at" type="number | null">
                  Timestamp when the balance will next reset.
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="price" type="object | null">
              Pricing configuration if this balance has usage-based pricing.

              <Expandable title="properties">
                <DynamicResponseField name="amount" type="number">
                  The per-unit price amount.
                </DynamicResponseField>

                <DynamicResponseField name="tiers" type="object[]">
                  Tiered pricing configuration if applicable.

                  <Expandable title="properties">
                    <DynamicResponseField name="to" type="number" />

                    <DynamicResponseField name="amount" type="number" />

                    <DynamicResponseField name="flat_amount" type="number" />
                  </Expandable>
                </DynamicResponseField>

                <DynamicResponseField name="tier_behavior" type="'graduated' | 'volume'">
                  How tiers are applied: graduated (split across bands) or volume (flat rate for the matched tier).
                </DynamicResponseField>

                <DynamicResponseField name="billing_units" type="number">
                  The number of units per billing increment (eg. \$9 / 250 units).
                </DynamicResponseField>

                <DynamicResponseField name="billing_method" type="'prepaid' | 'usage_based'">
                  Whether usage is prepaid or billed pay-per-use.
                </DynamicResponseField>

                <DynamicResponseField name="max_purchase" type="number | null">
                  Maximum quantity that can be purchased, or null for unlimited.
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="expires_at" type="number | null">
              Timestamp when this balance expires, or null for no expiration.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>

        <DynamicResponseField name="rollovers" type="object[]">
          Rollover balances carried over from previous periods.

          <Expandable title="properties">
            <DynamicResponseField name="balance" type="number">
              Amount of balance rolled over from a previous period.
            </DynamicResponseField>

            <DynamicResponseField name="expires_at" type="number">
              Timestamp when the rollover balance expires.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>
      </Expandable>
    </DynamicResponseField>

    <DynamicResponseField name="flags.{key}" type="object">
      Boolean feature flags keyed by feature ID, showing enabled access for on/off features.

      <Expandable title="properties">
        <DynamicResponseField name="id" type="string">
          The unique identifier for this flag.
        </DynamicResponseField>

        <DynamicResponseField name="plan_id" type="string | null">
          The plan ID this flag originates from, or null for standalone flags.
        </DynamicResponseField>

        <DynamicResponseField name="expires_at" type="number | null">
          Timestamp when this flag expires, or null for no expiration.
        </DynamicResponseField>

        <DynamicResponseField name="feature_id" type="string">
          The feature ID this flag is for.
        </DynamicResponseField>

        <DynamicResponseField name="feature" type="object">
          The full feature object if expanded.

          <Expandable title="properties">
            <DynamicResponseField name="id" type="string">
              The unique identifier for this feature, used in /check and /track calls.
            </DynamicResponseField>

            <DynamicResponseField name="name" type="string">
              Human-readable name displayed in the dashboard and billing UI.
            </DynamicResponseField>

            <DynamicResponseField name="type" type="'boolean' | 'metered' | 'credit_system' | 'ai_credit_system'">
              Feature type: 'boolean' for on/off access, 'metered' for usage-tracked features, 'credit\_system' for unified credit pools, 'ai\_credit\_system' for model-based token pricing.
            </DynamicResponseField>

            <DynamicResponseField name="consumable" type="boolean">
              For metered features: true if usage resets periodically (API calls, credits), false if allocated persistently (seats, storage).
            </DynamicResponseField>

            <DynamicResponseField name="event_names" type="string[]">
              Event names that trigger this feature's balance. Allows multiple features to respond to a single event.
            </DynamicResponseField>

            <DynamicResponseField name="credit_schema" type="object[]">
              For credit\_system features: maps metered features to their credit costs.

              <Expandable title="properties">
                <DynamicResponseField name="metered_feature_id" type="string">
                  ID of the metered feature that draws from this credit system.
                </DynamicResponseField>

                <DynamicResponseField name="credit_cost" type="number">
                  Credits consumed per unit of the metered feature.
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="model_markups.{key}" type="object | null">
              Per-model markup overrides for AI credit systems.

              <Expandable title="properties">
                <DynamicResponseField name="markup" type="number" />

                <DynamicResponseField name="input_cost" type="number" />

                <DynamicResponseField name="output_cost" type="number" />
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="default_markup" type="number">
              Default percentage markup for AI credit systems. Use -100 to make usage free.
            </DynamicResponseField>

            <DynamicResponseField name="provider_markups.{key}" type="object | null">
              Per-provider default markup percentages for AI credit systems.

              <Expandable title="properties">
                <DynamicResponseField name="markup" type="number" />
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="display" type="object">
              Display names for the feature in billing UI and customer-facing components.

              <Expandable title="properties">
                <DynamicResponseField name="singular" type="string | null">
                  Singular form for UI display (e.g., 'API call', 'seat').
                </DynamicResponseField>

                <DynamicResponseField name="plural" type="string | null">
                  Plural form for UI display (e.g., 'API calls', 'seats').
                </DynamicResponseField>
              </Expandable>
            </DynamicResponseField>

            <DynamicResponseField name="archived" type="boolean">
              Whether the feature is archived and hidden from the dashboard.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>
      </Expandable>
    </DynamicResponseField>

    <DynamicResponseField name="config" type="object">
      Configuration for the customer.

      <Expandable title="properties">
        <DynamicResponseField name="disable_pooled_balance" type="boolean">
          Whether to disable the shared customer-level pool for entities.
        </DynamicResponseField>

        <DynamicResponseField name="disable_overage_billing" type="boolean">
          Stops Autumn from posting usage-overage line items to Stripe for this customer. Check/track and balance resets still behave normally. When set, this overrides the organization-level disable\_overage\_billing setting.
        </DynamicResponseField>
      </Expandable>
    </DynamicResponseField>

    <DynamicResponseField name="processors" type="object">
      Payment processors this customer is connected to (Stripe, Vercel, RevenueCat). Omitted entirely when the customer has not been created in any processor.

      <Expandable title="properties">
        <DynamicResponseField name="stripe" type="object">
          Stripe processor connection for the customer.

          <Expandable title="properties">
            <DynamicResponseField name="id" type="string">
              Stripe customer ID.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>

        <DynamicResponseField name="vercel" type="object">
          Vercel processor connection for the customer (public-safe subset).

          <Expandable title="properties">
            <DynamicResponseField name="installation_id" type="string">
              Vercel marketplace installation ID for this customer.
            </DynamicResponseField>

            <DynamicResponseField name="account_id" type="string">
              Vercel account ID associated with the installation.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>

        <DynamicResponseField name="revenuecat" type="object">
          RevenueCat processor connection for the customer.

          <Expandable title="properties">
            <DynamicResponseField name="id" type="string | null">
              Customer's external ID, used as the RevenueCat app user ID. Null if the customer has no external ID set.
            </DynamicResponseField>
          </Expandable>
        </DynamicResponseField>
      </Expandable>
    </DynamicResponseField>
  </Expandable>
</DynamicResponseField>

<DynamicResponseField name="next_cursor" type="string | null">
  Opaque cursor for the next page. Null when there are no more results.
</DynamicResponseField>

<ResponseExample>
  ```json 200 theme={null}
  {
    "list": [
      {
        "id": "2ee25a41-0d81-4ad2-8451-ec1aadaefe58",
        "name": "Patrick",
        "email": "patrick@useautumn.com",
        "createdAt": 1771409161016,
        "fingerprint": null,
        "stripeId": "cus_U0BKxpq1mFhuJO",
        "processors": {
          "stripe": {
            "id": "cus_U0BKxpq1mFhuJO"
          }
        },
        "env": "sandbox",
        "metadata": {},
        "sendEmailReceipts": false,
        "billingControls": {
          "autoTopups": []
        },
        "subscriptions": [
          {
            "planId": "pro_plan",
            "autoEnable": true,
            "addOn": false,
            "status": "active",
            "pastDue": false,
            "canceledAt": null,
            "expiresAt": null,
            "trialEndsAt": null,
            "startedAt": 1771431921437,
            "currentPeriodStart": 1771431921437,
            "currentPeriodEnd": 1771999921437,
            "quantity": 1
          }
        ],
        "purchases": [],
        "licenses": [],
        "balances": {
          "messages": {
            "featureId": "messages",
            "granted": 100,
            "remaining": 0,
            "usage": 100,
            "unlimited": false,
            "overageAllowed": false,
            "maxPurchase": null,
            "nextResetAt": 1773851121437,
            "breakdown": [
              {
                "id": "cus_ent_39qmLooixXLAqMywgXywjAz96rV",
                "planId": "pro_plan",
                "includedGrant": 100,
                "prepaidGrant": 0,
                "remaining": 0,
                "usage": 100,
                "unlimited": false,
                "reset": {
                  "interval": "month",
                  "resetsAt": 1773851121437
                },
                "price": null,
                "expiresAt": null
              }
            ]
          }
        },
        "flags": {
          "advanced_workflows": {
            "id": "cus_ent_abc123",
            "plan_id": "pro_plan",
            "expires_at": null,
            "feature_id": "advanced_workflows"
          }
        },
        "config": {
          "disable_pooled_balance": false,
          "disable_overage_billing": false
        }
      }
    ],
    "next_cursor": null
  }
  ```
</ResponseExample>


## OpenAPI

````yaml openapi POST /v1/customers.list
openapi: 3.1.0
info:
  title: Autumn API
  version: 2.3.0
servers:
  - url: https://api.useautumn.com
    description: Production server
security:
  - secretKey: []
paths:
  /v1/customers.list:
    post:
      tags:
        - customers
      description: >-
        Lists customers with cursor pagination and optional filters. Pass
        `start_cursor: ""` (or omit) for the first page; use `next_cursor` from
        a prior response for subsequent pages.
      operationId: listCustomers
      parameters:
        - name: x-api-version
          in: header
          required: true
          schema:
            type: string
            default: 2.3.0
          x-speakeasy-globals-hidden: true
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                start_cursor:
                  type: string
                  default: ''
                  description: >-
                    Opaque pagination cursor. Empty string (default) requests
                    the first page; use next_cursor from a prior response for
                    subsequent pages.
                limit:
                  type: integer
                  minimum: 1
                  maximum: 5000
                  default: 50
                  description: Number of items to return. Default 50, hard ceiling 5000.
                plans:
                  type: array
                  items:
                    type: object
                    properties:
                      id:
                        type: string
                      versions:
                        type: array
                        items:
                          type: number
                    required:
                      - id
                  description: >-
                    Filter by plan ID and version. Returns customers with active
                    subscriptions to this plan.
                subscription_status:
                  enum:
                    - active
                    - scheduled
                  type: string
                  description: >-
                    Filter by customer product status. Defaults to active and
                    scheduled.
                search:
                  type: string
                  description: Search customers by id, name, or email.
                processors:
                  type: array
                  items:
                    enum:
                      - stripe
                      - revenuecat
                      - vercel
                    type: string
                  description: >-
                    Filter by customer processor type (stripe, revenuecat,
                    vercel).
              title: ListCustomersParams
              examples:
                - start_cursor: ''
                  limit: 10
            example:
              start_cursor: ''
              limit: 10
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  list:
                    type: array
                    items:
                      type: object
                      properties:
                        id:
                          anyOf:
                            - type: string
                            - type: 'null'
                          description: Your unique identifier for the customer.
                        name:
                          anyOf:
                            - type: string
                            - type: 'null'
                          description: The name of the customer.
                        email:
                          anyOf:
                            - type: string
                            - type: 'null'
                          description: The email address of the customer.
                        created_at:
                          type: number
                          description: >-
                            Timestamp of customer creation in milliseconds since
                            epoch.
                        fingerprint:
                          anyOf:
                            - type: string
                            - type: 'null'
                          description: >-
                            A unique identifier (eg. serial number) to
                            de-duplicate customers across devices or browsers.
                            For example: apple device ID.
                        stripe_id:
                          anyOf:
                            - type: string
                            - type: 'null'
                          description: Stripe customer ID.
                        env:
                          enum:
                            - sandbox
                            - live
                          type: string
                          description: The environment this customer was created in.
                        metadata:
                          type: object
                          propertyNames: {}
                          additionalProperties: {}
                          description: The metadata for the customer.
                        send_email_receipts:
                          type: boolean
                          description: Whether to send email receipts to the customer.
                        billing_controls:
                          type: object
                          properties:
                            auto_topups:
                              type: array
                              items:
                                type: object
                                properties:
                                  feature_id:
                                    type: string
                                    description: >-
                                      The ID of the feature (credit balance) to
                                      auto top-up.
                                  enabled:
                                    type: boolean
                                    default: false
                                    description: Whether auto top-up is enabled.
                                  threshold:
                                    type: number
                                    description: >-
                                      When the balance drops below this
                                      threshold, an auto top-up will be
                                      purchased.
                                  quantity:
                                    type: number
                                    minimum: 1
                                    description: Amount of credits to add per auto top-up.
                                  purchase_limit:
                                    anyOf:
                                      - type: object
                                        properties:
                                          interval:
                                            anyOf:
                                              - enum:
                                                  - hour
                                                  - day
                                                  - week
                                                  - month
                                                type: string
                                              - type: 'null'
                                            description: >-
                                              The time interval for the purchase limit
                                              window. Null when no purchase limit is
                                              configured.
                                          interval_count:
                                            anyOf:
                                              - type: number
                                                minimum: 1
                                              - type: 'null'
                                            description: >-
                                              Number of intervals in the purchase
                                              limit window. Null when no purchase
                                              limit is configured.
                                          limit:
                                            anyOf:
                                              - type: number
                                                minimum: 1
                                              - type: 'null'
                                            description: >-
                                              Maximum number of auto top-ups allowed
                                              within the interval. Null when no
                                              purchase limit is configured.
                                          count:
                                            type: number
                                            description: >-
                                              Number of auto top-ups already consumed
                                              in the current window.
                                          next_reset_at:
                                            type: number
                                            description: >-
                                              Unix ms timestamp when the current
                                              purchase window ends and the count
                                              resets.
                                        required:
                                          - interval
                                          - interval_count
                                          - limit
                                          - count
                                          - next_reset_at
                                      - type: object
                                        properties:
                                          interval:
                                            enum:
                                              - hour
                                              - day
                                              - week
                                              - month
                                            type: string
                                            description: >-
                                              The time interval for the purchase limit
                                              window.
                                          interval_count:
                                            type: number
                                            minimum: 1
                                            default: 1
                                            description: >-
                                              Number of intervals in the purchase
                                              limit window.
                                          limit:
                                            type: number
                                            minimum: 1
                                            description: >-
                                              Maximum number of auto top-ups allowed
                                              within the interval.
                                        required:
                                          - interval
                                          - limit
                                    description: >-
                                      Optional rate limit to cap how often auto
                                      top-ups occur. Expand
                                      billing_controls.auto_topups.purchase_limit
                                      for a count of top ups and the
                                      next_reset_at.
                                  invoice_mode:
                                    type: boolean
                                    description: >-
                                      When true, auto top-up creates a
                                      send_invoice invoice instead of
                                      auto-charging.
                                  source:
                                    enum:
                                      - customer
                                      - plan
                                    type: string
                                    description: >-
                                      Response-only: whether the entry is a
                                      customer-level override or inherited from
                                      an attached plan's defaults.
                                required:
                                  - feature_id
                                  - threshold
                                  - quantity
                              description: List of auto top-up configurations per feature.
                            spend_limits:
                              type: array
                              items:
                                type: object
                                properties:
                                  feature_id:
                                    type: string
                                    description: >-
                                      Optional feature ID this spend limit
                                      applies to.
                                  enabled:
                                    type: boolean
                                    default: false
                                    description: >-
                                      Whether the overage spend limit is
                                      enabled.
                                  limit_type:
                                    enum:
                                      - absolute
                                      - usage_percentage
                                    type: string
                                    description: >-
                                      How overage_limit is interpreted: an
                                      absolute overage cap (default) or a
                                      percentage of the main-plan allowance.
                                  overage_limit:
                                    type: number
                                    minimum: 0
                                    description: >-
                                      Overage cap for the feature: absolute
                                      units, or a percent (e.g. 120) when
                                      limit_type is usage_percentage.
                                  skip_overage_billing:
                                    type: boolean
                                    description: >-
                                      When true, overage for this feature is not
                                      posted to Stripe. Usage tracking and
                                      balance resets still behave normally.
                                  source:
                                    enum:
                                      - customer
                                      - plan
                                    type: string
                                    description: >-
                                      Response-only: whether the entry is a
                                      customer-level override or inherited from
                                      an attached plan's defaults.
                              description: >-
                                List of overage spend limits per feature (caps
                                overage spend).
                            usage_limits:
                              type: array
                              items:
                                type: object
                                properties:
                                  feature_id:
                                    type: string
                                    description: The feature this usage limit applies to.
                                  enabled:
                                    type: boolean
                                    default: true
                                    description: Whether this usage limit is enabled.
                                  limit:
                                    type: number
                                    minimum: 0
                                    description: Maximum units allowed per interval.
                                  interval:
                                    enum:
                                      - day
                                      - week
                                      - month
                                      - year
                                    type: string
                                    description: >-
                                      Interval for the cap, aligned to the
                                      customer's billing cycle.
                                  filter:
                                    type: object
                                    properties:
                                      properties:
                                        type: object
                                        propertyNames:
                                          type: string
                                          minLength: 1
                                          maxLength: 64
                                        additionalProperties: {}
                                    required:
                                      - properties
                                    description: >-
                                      When set, only usage from events whose
                                      properties match counts toward this cap.
                                      Omit to count all usage of the feature.
                                  usage:
                                    type: number
                                    minimum: 0
                                    description: >-
                                      Current usage already consumed in the
                                      active interval. Response-only; not stored
                                      on billing controls.
                                  source:
                                    enum:
                                      - customer
                                      - plan
                                    type: string
                                    description: >-
                                      Response-only: whether the entry is a
                                      customer-level override or inherited from
                                      an attached plan's defaults.
                                required:
                                  - feature_id
                                  - limit
                                  - interval
                              description: >-
                                List of hard usage caps per feature, with
                                current interval usage.
                            usage_alerts:
                              type: array
                              items:
                                type: object
                                properties:
                                  feature_id:
                                    type: string
                                    description: The feature ID this alert applies to.
                                  enabled:
                                    type: boolean
                                    default: true
                                    description: Whether this usage alert is enabled.
                                  threshold:
                                    type: number
                                    minimum: 0
                                    description: >-
                                      The threshold value that triggers the
                                      alert. For usage or remaining, this is an
                                      absolute count. For usage_percentage or
                                      remaining_percentage, this is a percentage
                                      (0-100).
                                  threshold_type:
                                    enum:
                                      - usage
                                      - usage_percentage
                                      - remaining
                                      - remaining_percentage
                                    type: string
                                    description: >-
                                      Whether the threshold is an absolute count
                                      or a percentage of the usage allowance or
                                      remaining balance.
                                  name:
                                    type: string
                                    description: >-
                                      Optional user-defined label to distinguish
                                      multiple alerts on the same feature.
                                  source:
                                    enum:
                                      - customer
                                      - plan
                                    type: string
                                    description: >-
                                      Response-only: whether the entry is a
                                      customer-level override or inherited from
                                      an attached plan's defaults.
                                required:
                                  - threshold
                                  - threshold_type
                              description: List of usage alert configurations per feature.
                            overage_allowed:
                              type: array
                              items:
                                type: object
                                properties:
                                  feature_id:
                                    type: string
                                    description: >-
                                      The feature ID this overage allowed
                                      control applies to.
                                  enabled:
                                    type: boolean
                                    default: false
                                    description: >-
                                      Whether overage is allowed for this
                                      feature.
                                  source:
                                    enum:
                                      - customer
                                      - plan
                                    type: string
                                    description: >-
                                      Response-only: whether the entry is a
                                      customer-level override or inherited from
                                      an attached plan's defaults.
                                required:
                                  - feature_id
                              description: >-
                                List of overage allowed controls per feature.
                                When enabled, usage can exceed balance.
                          description: >-
                            Billing controls for the customer (auto top-ups,
                            etc.)
                        subscriptions:
                          type: array
                          items:
                            type: object
                            properties:
                              id:
                                type: string
                                description: >-
                                  The unique identifier of this subscription. If
                                  a subscription_id was provided at attach time,
                                  it is used; otherwise, falls back to the
                                  internal ID.
                              plan:
                                $ref: '#/components/schemas/Plan'
                                description: The full plan object if expanded.
                              plan_id:
                                type: string
                                description: The unique identifier of the subscribed plan.
                              auto_enable:
                                type: boolean
                                description: >-
                                  Whether the plan was automatically enabled for
                                  the customer.
                              add_on:
                                type: boolean
                                description: >-
                                  Whether this is an add-on plan rather than a
                                  base subscription.
                              status:
                                enum:
                                  - active
                                  - scheduled
                                type: string
                                description: Current status of the subscription.
                              past_due:
                                type: boolean
                                description: Whether the subscription has overdue payments.
                              canceled_at:
                                anyOf:
                                  - type: number
                                  - type: 'null'
                                description: >-
                                  Timestamp when the subscription was canceled,
                                  or null if not canceled.
                              expires_at:
                                anyOf:
                                  - type: number
                                  - type: 'null'
                                description: >-
                                  Timestamp when the subscription will expire,
                                  or null if no expiry set.
                              trial_ends_at:
                                anyOf:
                                  - type: number
                                  - type: 'null'
                                description: >-
                                  Timestamp when the trial period ends, or null
                                  if not on trial.
                              started_at:
                                type: number
                                description: Timestamp when the subscription started.
                              current_period_start:
                                anyOf:
                                  - type: number
                                  - type: 'null'
                                description: Start timestamp of the current billing period.
                              current_period_end:
                                anyOf:
                                  - type: number
                                  - type: 'null'
                                description: End timestamp of the current billing period.
                              quantity:
                                type: number
                                description: >-
                                  Number of units of this subscription (for
                                  per-seat plans).
                              scope:
                                enum:
                                  - customer
                                  - entity
                                type: string
                                description: >-
                                  Whether this subscription is attached at the
                                  customer level or entity level.
                            required:
                              - id
                              - plan_id
                              - auto_enable
                              - add_on
                              - status
                              - past_due
                              - canceled_at
                              - expires_at
                              - trial_ends_at
                              - started_at
                              - current_period_start
                              - current_period_end
                              - quantity
                          description: >-
                            Active and scheduled recurring plans that this
                            customer has attached.
                        purchases:
                          type: array
                          items:
                            type: object
                            properties:
                              plan:
                                $ref: '#/components/schemas/Plan'
                                description: The full plan object if expanded.
                              plan_id:
                                type: string
                                description: The unique identifier of the purchased plan.
                              expires_at:
                                anyOf:
                                  - type: number
                                  - type: 'null'
                                description: >-
                                  Timestamp when the purchase expires, or null
                                  for lifetime access.
                              started_at:
                                type: number
                                description: Timestamp when the purchase was made.
                              quantity:
                                type: number
                                description: Number of units purchased.
                              scope:
                                enum:
                                  - customer
                                  - entity
                                type: string
                                description: >-
                                  Whether this purchase is attached at the
                                  customer level or entity level.
                            required:
                              - plan_id
                              - expires_at
                              - started_at
                              - quantity
                          description: One-time purchases made by the customer.
                        licenses:
                          type: array
                          items:
                            type: object
                            properties:
                              license_plan_id:
                                type: string
                                description: The plan offered as an assignable license.
                              parent_plan_id:
                                type: string
                                description: The plan that offers this license.
                              license_plan_name:
                                type: string
                                description: Display name of the license plan.
                              granted:
                                type: number
                                description: >-
                                  Total seats the customer has for this license,
                                  included plus paid.
                              usage:
                                type: number
                                description: Seats currently assigned to entities.
                              remaining:
                                type: number
                                description: Seats still available to assign.
                              paid_quantity:
                                type: number
                                description: >-
                                  Paid seats purchased on top of the plan's
                                  included amount.
                            required:
                              - license_plan_id
                              - parent_plan_id
                              - license_plan_name
                              - granted
                              - usage
                              - remaining
                              - paid_quantity
                          description: >-
                            License seat pools granted by the customer's plans,
                            with seat counts.
                        balances:
                          type: object
                          propertyNames:
                            type: string
                          additionalProperties:
                            $ref: '#/components/schemas/Balance'
                          description: >-
                            Feature balances keyed by feature ID, showing usage
                            limits and remaining amounts.
                        flags:
                          type: object
                          propertyNames:
                            type: string
                          additionalProperties:
                            type: object
                            properties:
                              id:
                                type: string
                                description: The unique identifier for this flag.
                              plan_id:
                                anyOf:
                                  - type: string
                                  - type: 'null'
                                description: >-
                                  The plan ID this flag originates from, or null
                                  for standalone flags.
                              expires_at:
                                anyOf:
                                  - type: number
                                  - type: 'null'
                                description: >-
                                  Timestamp when this flag expires, or null for
                                  no expiration.
                              feature_id:
                                type: string
                                description: The feature ID this flag is for.
                              feature:
                                type: object
                                properties:
                                  id:
                                    type: string
                                    description: >-
                                      The unique identifier for this feature,
                                      used in /check and /track calls.
                                  name:
                                    type: string
                                    description: >-
                                      Human-readable name displayed in the
                                      dashboard and billing UI.
                                  type:
                                    enum:
                                      - boolean
                                      - metered
                                      - credit_system
                                      - ai_credit_system
                                    type: string
                                    description: >-
                                      Feature type: 'boolean' for on/off access,
                                      'metered' for usage-tracked features,
                                      'credit_system' for unified credit pools,
                                      'ai_credit_system' for model-based token
                                      pricing.
                                  consumable:
                                    type: boolean
                                    description: >-
                                      For metered features: true if usage resets
                                      periodically (API calls, credits), false
                                      if allocated persistently (seats,
                                      storage).
                                  event_names:
                                    type: array
                                    items:
                                      type: string
                                    description: >-
                                      Event names that trigger this feature's
                                      balance. Allows multiple features to
                                      respond to a single event.
                                  credit_schema:
                                    type: array
                                    items:
                                      type: object
                                      properties:
                                        metered_feature_id:
                                          type: string
                                          description: >-
                                            ID of the metered feature that draws
                                            from this credit system.
                                        credit_cost:
                                          type: number
                                          description: >-
                                            Credits consumed per unit of the metered
                                            feature.
                                      required:
                                        - metered_feature_id
                                        - credit_cost
                                    description: >-
                                      For credit_system features: maps metered
                                      features to their credit costs.
                                  model_markups:
                                    anyOf:
                                      - type: object
                                        propertyNames:
                                          type: string
                                        additionalProperties:
                                          type: object
                                          properties:
                                            markup:
                                              type: number
                                              minimum: -100
                                            input_cost:
                                              type: number
                                              minimum: 0
                                            output_cost:
                                              type: number
                                              minimum: 0
                                      - type: 'null'
                                    description: >-
                                      Per-model markup overrides for AI credit
                                      systems.
                                  default_markup:
                                    type: number
                                    minimum: -100
                                    description: >-
                                      Default percentage markup for AI credit
                                      systems. Use -100 to make usage free.
                                  provider_markups:
                                    anyOf:
                                      - type: object
                                        propertyNames:
                                          type: string
                                        additionalProperties:
                                          type: object
                                          properties:
                                            markup:
                                              type: number
                                              minimum: -100
                                          required:
                                            - markup
                                      - type: 'null'
                                    description: >-
                                      Per-provider default markup percentages
                                      for AI credit systems.
                                  display:
                                    type: object
                                    properties:
                                      singular:
                                        anyOf:
                                          - type: string
                                          - type: 'null'
                                        description: >-
                                          Singular form for UI display (e.g., 'API
                                          call', 'seat').
                                      plural:
                                        anyOf:
                                          - type: string
                                          - type: 'null'
                                        description: >-
                                          Plural form for UI display (e.g., 'API
                                          calls', 'seats').
                                    description: >-
                                      Display names for the feature in billing
                                      UI and customer-facing components.
                                  archived:
                                    type: boolean
                                    description: >-
                                      Whether the feature is archived and hidden
                                      from the dashboard.
                                required:
                                  - id
                                  - name
                                  - type
                                  - consumable
                                  - archived
                                description: The full feature object if expanded.
                            required:
                              - id
                              - plan_id
                              - expires_at
                              - feature_id
                            examples:
                              - id: cus_ent_39qmLooixXLAqMywgXywjAz96rV
                                plan_id: pro_plan
                                expires_at: null
                                feature_id: dashboard
                          description: >-
                            Boolean feature flags keyed by feature ID, showing
                            enabled access for on/off features.
                        config:
                          type: object
                          properties:
                            disable_pooled_balance:
                              type: boolean
                              description: >-
                                Whether to disable the shared customer-level
                                pool for entities.
                            disable_overage_billing:
                              type: boolean
                              description: >-
                                Stops Autumn from posting usage-overage line
                                items to Stripe for this customer. Check/track
                                and balance resets still behave normally. When
                                set, this overrides the organization-level
                                disable_overage_billing setting.
                          description: Configuration for the customer.
                        processors:
                          type: object
                          properties:
                            stripe:
                              type: object
                              properties:
                                id:
                                  type: string
                                  description: Stripe customer ID.
                              required:
                                - id
                              description: Stripe processor connection for the customer.
                            vercel:
                              type: object
                              properties:
                                installation_id:
                                  type: string
                                  description: >-
                                    Vercel marketplace installation ID for this
                                    customer.
                                account_id:
                                  type: string
                                  description: >-
                                    Vercel account ID associated with the
                                    installation.
                              required:
                                - installation_id
                                - account_id
                              description: >-
                                Vercel processor connection for the customer
                                (public-safe subset).
                            revenuecat:
                              type: object
                              properties:
                                id:
                                  anyOf:
                                    - type: string
                                    - type: 'null'
                                  description: >-
                                    Customer's external ID, used as the
                                    RevenueCat app user ID. Null if the customer
                                    has no external ID set.
                              required:
                                - id
                              description: >-
                                RevenueCat processor connection for the
                                customer.
                          description: >-
                            Payment processors this customer is connected to
                            (Stripe, Vercel, RevenueCat). Omitted entirely when
                            the customer has not been created in any processor.
                      required:
                        - id
                        - name
                        - email
                        - created_at
                        - fingerprint
                        - stripe_id
                        - env
                        - metadata
                        - send_email_receipts
                        - billing_controls
                        - subscriptions
                        - purchases
                        - licenses
                        - balances
                        - flags
                      examples:
                        - id: 2ee25a41-0d81-4ad2-8451-ec1aadaefe58
                          name: Patrick
                          email: patrick@useautumn.com
                          createdAt: 1771409161016
                          fingerprint: null
                          stripeId: cus_U0BKxpq1mFhuJO
                          processors:
                            stripe:
                              id: cus_U0BKxpq1mFhuJO
                          env: sandbox
                          metadata: {}
                          sendEmailReceipts: false
                          billingControls:
                            autoTopups: []
                          subscriptions:
                            - planId: pro_plan
                              autoEnable: true
                              addOn: false
                              status: active
                              pastDue: false
                              canceledAt: null
                              expiresAt: null
                              trialEndsAt: null
                              startedAt: 1771431921437
                              currentPeriodStart: 1771431921437
                              currentPeriodEnd: 1771999921437
                              quantity: 1
                          purchases: []
                          licenses: []
                          balances:
                            messages:
                              featureId: messages
                              granted: 100
                              remaining: 0
                              usage: 100
                              unlimited: false
                              overageAllowed: false
                              maxPurchase: null
                              nextResetAt: 1773851121437
                              breakdown:
                                - id: cus_ent_39qmLooixXLAqMywgXywjAz96rV
                                  planId: pro_plan
                                  includedGrant: 100
                                  prepaidGrant: 0
                                  remaining: 0
                                  usage: 100
                                  unlimited: false
                                  reset:
                                    interval: month
                                    resetsAt: 1773851121437
                                  price: null
                                  expiresAt: null
                          flags:
                            advanced_workflows:
                              id: cus_ent_abc123
                              plan_id: pro_plan
                              expires_at: null
                              feature_id: advanced_workflows
                          config:
                            disable_pooled_balance: false
                            disable_overage_billing: false
                    description: Items for current page.
                  next_cursor:
                    anyOf:
                      - type: string
                      - type: 'null'
                    description: >-
                      Opaque cursor for the next page. Null when there are no
                      more results.
                required:
                  - list
                  - next_cursor
                examples:
                  - list:
                      - id: 2ee25a41-0d81-4ad2-8451-ec1aadaefe58
                        name: Patrick
                        email: patrick@useautumn.com
                        createdAt: 1771409161016
                        fingerprint: null
                        stripeId: cus_U0BKxpq1mFhuJO
                        processors:
                          stripe:
                            id: cus_U0BKxpq1mFhuJO
                        env: sandbox
                        metadata: {}
                        sendEmailReceipts: false
                        billingControls:
                          autoTopups: []
                        subscriptions:
                          - planId: pro_plan
                            autoEnable: true
                            addOn: false
                            status: active
                            pastDue: false
                            canceledAt: null
                            expiresAt: null
                            trialEndsAt: null
                            startedAt: 1771431921437
                            currentPeriodStart: 1771431921437
                            currentPeriodEnd: 1771999921437
                            quantity: 1
                        purchases: []
                        licenses: []
                        balances:
                          messages:
                            featureId: messages
                            granted: 100
                            remaining: 0
                            usage: 100
                            unlimited: false
                            overageAllowed: false
                            maxPurchase: null
                            nextResetAt: 1773851121437
                            breakdown:
                              - id: cus_ent_39qmLooixXLAqMywgXywjAz96rV
                                planId: pro_plan
                                includedGrant: 100
                                prepaidGrant: 0
                                remaining: 0
                                usage: 100
                                unlimited: false
                                reset:
                                  interval: month
                                  resetsAt: 1773851121437
                                price: null
                                expiresAt: null
                        flags:
                          advanced_workflows:
                            id: cus_ent_abc123
                            plan_id: pro_plan
                            expires_at: null
                            feature_id: advanced_workflows
                        config:
                          disable_pooled_balance: false
                          disable_overage_billing: false
                    next_cursor: null
              example:
                list:
                  - id: 2ee25a41-0d81-4ad2-8451-ec1aadaefe58
                    name: Patrick
                    email: patrick@useautumn.com
                    createdAt: 1771409161016
                    fingerprint: null
                    stripeId: cus_U0BKxpq1mFhuJO
                    processors:
                      stripe:
                        id: cus_U0BKxpq1mFhuJO
                    env: sandbox
                    metadata: {}
                    sendEmailReceipts: false
                    billingControls:
                      autoTopups: []
                    subscriptions:
                      - planId: pro_plan
                        autoEnable: true
                        addOn: false
                        status: active
                        pastDue: false
                        canceledAt: null
                        expiresAt: null
                        trialEndsAt: null
                        startedAt: 1771431921437
                        currentPeriodStart: 1771431921437
                        currentPeriodEnd: 1771999921437
                        quantity: 1
                    purchases: []
                    licenses: []
                    balances:
                      messages:
                        featureId: messages
                        granted: 100
                        remaining: 0
                        usage: 100
                        unlimited: false
                        overageAllowed: false
                        maxPurchase: null
                        nextResetAt: 1773851121437
                        breakdown:
                          - id: cus_ent_39qmLooixXLAqMywgXywjAz96rV
                            planId: pro_plan
                            includedGrant: 100
                            prepaidGrant: 0
                            remaining: 0
                            usage: 100
                            unlimited: false
                            reset:
                              interval: month
                              resetsAt: 1773851121437
                            price: null
                            expiresAt: null
                    flags:
                      advanced_workflows:
                        id: cus_ent_abc123
                        plan_id: pro_plan
                        expires_at: null
                        feature_id: advanced_workflows
                    config:
                      disable_pooled_balance: false
                      disable_overage_billing: false
                next_cursor: null
      x-codeSamples:
        - lang: typescript
          label: Typescript (SDK)
          source: |-
            import { Autumn } from 'autumn-js'

            const autumn = new Autumn()

            const result = await autumn.customers.list({
              limit: 10,
            });
        - lang: python
          label: Python (SDK)
          source: |-
            from autumn_sdk import Autumn

            autumn = Autumn(secret_key="am_sk_test...")

            res = autumn.customers.list(start_cursor="", limit=10)
components:
  schemas:
    Plan:
      type: object
      properties:
        id:
          type: string
          description: Unique identifier for the plan.
        name:
          type: string
          description: Display name of the plan.
        description:
          anyOf:
            - type: string
            - type: 'null'
          description: Optional description of the plan.
        group:
          anyOf:
            - type: string
            - type: 'null'
          description: >-
            Group identifier for organizing related plans. Plans in the same
            group are mutually exclusive.
        version:
          type: number
          description: >-
            Version number of the plan. Incremented when plan configuration
            changes.
        add_on:
          type: boolean
          description: >-
            Whether this is an add-on plan that can be attached alongside a main
            plan.
        auto_enable:
          type: boolean
          description: >-
            If true, this plan is automatically attached when a customer is
            created. Used for free plans.
        price:
          anyOf:
            - type: object
              properties:
                amount:
                  type: number
                  description: Base price amount for the plan.
                additional_currencies:
                  type: array
                  items:
                    type: object
                    properties:
                      currency:
                        type: string
                        description: >-
                          Three-letter Stripe-supported currency code (e.g.
                          'eur', 'gbp').
                      amount:
                        type: number
                        description: >-
                          Price amount in this currency. Set explicitly per
                          currency, not converted from the base amount.
                    required:
                      - currency
                      - amount
                  description: >-
                    Base price amounts in additional currencies. The base
                    'amount' is in the org's default currency.
                interval:
                  enum:
                    - one_off
                    - week
                    - month
                    - quarter
                    - semi_annual
                    - year
                  type: string
                  description: Billing interval (e.g. 'month', 'year').
                interval_count:
                  type: number
                  description: Number of intervals per billing cycle. Defaults to 1.
                display:
                  type: object
                  properties:
                    primary_text:
                      type: string
                      description: Main display text (e.g. '$10' or '100 messages').
                    secondary_text:
                      type: string
                      description: >-
                        Secondary display text (e.g. 'per month' or 'then $0.5
                        per 100').
                  required:
                    - primary_text
                  description: Display text for showing this price in pricing pages.
              required:
                - amount
                - interval
            - type: 'null'
          description: >-
            Base recurring price for the plan. Null for free plans or usage-only
            plans.
        items:
          type: array
          items:
            type: object
            properties:
              feature_id:
                type: string
                description: The ID of the feature this item configures.
              feature:
                type: object
                properties:
                  id:
                    type: string
                    description: >-
                      The ID of the feature, used to refer to it in other API
                      calls like /track or /check.
                  name:
                    anyOf:
                      - type: string
                      - type: 'null'
                    description: The name of the feature.
                  type:
                    enum:
                      - static
                      - boolean
                      - single_use
                      - continuous_use
                      - credit_system
                      - ai_credit_system
                    type: string
                    description: The type of the feature
                  display:
                    anyOf:
                      - type: object
                        properties:
                          singular:
                            type: string
                            description: The singular display name for the feature.
                          plural:
                            type: string
                            description: The plural display name for the feature.
                        required:
                          - singular
                          - plural
                      - type: 'null'
                    description: Singular and plural display names for the feature.
                  credit_schema:
                    anyOf:
                      - type: array
                        items:
                          type: object
                          properties:
                            metered_feature_id:
                              type: string
                              description: >-
                                The ID of the metered feature (should be a
                                single_use feature).
                            credit_cost:
                              type: number
                              description: The credit cost of the metered feature.
                          required:
                            - metered_feature_id
                            - credit_cost
                      - type: 'null'
                    description: Credit cost schema for credit system features.
                  archived:
                    anyOf:
                      - type: boolean
                      - type: 'null'
                    description: Whether or not the feature is archived.
                required:
                  - id
                  - type
                description: The full feature object if expanded.
              included:
                type: number
                description: >-
                  Number of free units included. For consumable features,
                  balance resets to this number each interval.
              unlimited:
                type: boolean
                description: Whether the customer has unlimited access to this feature.
              reset:
                anyOf:
                  - type: object
                    properties:
                      interval:
                        enum:
                          - one_off
                          - minute
                          - hour
                          - day
                          - week
                          - month
                          - quarter
                          - semi_annual
                          - year
                        type: string
                        description: >-
                          The interval at which the feature balance resets (e.g.
                          'month', 'year'). For consumable features, usage
                          resets to 0 and included units are restored.
                      interval_count:
                        type: number
                        description: Number of intervals between resets. Defaults to 1.
                    required:
                      - interval
                  - type: 'null'
                description: >-
                  Reset configuration for consumable features. Null for
                  non-consumable features like seats where usage persists across
                  billing cycles.
              price:
                anyOf:
                  - type: object
                    properties:
                      amount:
                        type: number
                        description: >-
                          Price per billing_units after included usage is
                          consumed. Mutually exclusive with tiers.
                      additional_currencies:
                        type: array
                        items:
                          type: object
                          properties:
                            currency:
                              type: string
                              description: >-
                                Three-letter Stripe-supported currency code
                                (e.g. 'eur', 'gbp').
                            amount:
                              type: number
                              description: >-
                                Price amount in this currency. Set explicitly
                                per currency, not converted from the base
                                amount.
                          required:
                            - currency
                            - amount
                        description: >-
                          Amounts in additional currencies for this flat price.
                          The base 'amount' is in the org's default currency.
                          Only valid with 'amount', not 'tiers' (tiered prices
                          carry per-currency amounts on each tier).
                      tiers:
                        type: array
                        items:
                          type: object
                          properties:
                            to:
                              anyOf:
                                - type: number
                                - const: inf
                            amount:
                              type: number
                            flat_amount:
                              type: number
                            additional_currencies:
                              type: array
                              items:
                                type: object
                                properties:
                                  currency:
                                    type: string
                                    description: >-
                                      Three-letter Stripe-supported currency
                                      code (e.g. 'eur', 'gbp').
                                  amount:
                                    type: number
                                    description: >-
                                      Per-unit amount for this tier in this
                                      currency.
                                  flat_amount:
                                    type: number
                                    description: >-
                                      Flat amount for this tier in this
                                      currency, if the tier uses one.
                                required:
                                  - currency
                          required:
                            - to
                            - amount
                        description: >-
                          Tiered pricing configuration. Each tier's 'to'
                          INCLUDES the included amount. Either 'tiers' or
                          'amount' is required.
                      tier_behavior:
                        enum:
                          - graduated
                          - volume
                        type: string
                      interval:
                        enum:
                          - one_off
                          - week
                          - month
                          - quarter
                          - semi_annual
                          - year
                        type: string
                        description: >-
                          Billing interval for this price. For consumable
                          features, should match reset.interval.
                      interval_count:
                        type: number
                        description: Number of intervals per billing cycle. Defaults to 1.
                      billing_units:
                        type: number
                        description: >-
                          Number of units per price increment. Usage is rounded
                          UP to the nearest billing_units when billed (e.g.
                          billing_units=100 means 101 usage rounds to 200).
                      billing_method:
                        enum:
                          - prepaid
                          - usage_based
                        type: string
                        description: >-
                          'prepaid' for features like seats where customers pay
                          upfront, 'usage_based' for pay-as-you-go after
                          included usage.
                      max_purchase:
                        anyOf:
                          - type: number
                          - type: 'null'
                        description: >-
                          Maximum units a customer can purchase beyond included.
                          E.g. if included=100 and max_purchase=300, customer
                          can use up to 400 total before usage is capped. Null
                          for no limit.
                    required:
                      - interval
                      - billing_units
                      - billing_method
                      - max_purchase
                  - type: 'null'
                description: >-
                  Pricing configuration for usage beyond included units. Null if
                  feature is entirely free.
              display:
                type: object
                properties:
                  primary_text:
                    type: string
                    description: Main display text (e.g. '$10' or '100 messages').
                  secondary_text:
                    type: string
                    description: >-
                      Secondary display text (e.g. 'per month' or 'then $0.5 per
                      100').
                required:
                  - primary_text
                description: Display text for showing this item in pricing pages.
              rollover:
                type: object
                properties:
                  max:
                    anyOf:
                      - type: number
                      - type: 'null'
                    description: Maximum rollover units. Null for unlimited rollover.
                  max_percentage:
                    anyOf:
                      - type: number
                      - type: 'null'
                    description: >-
                      Maximum rollover as a percentage (0-100) of included +
                      prepaid grant. Mutually exclusive with max.
                  expiry_duration_type:
                    enum:
                      - month
                      - forever
                    type: string
                    description: When rolled over units expire.
                  expiry_duration_length:
                    type: number
                    description: Number of periods before expiry.
                required:
                  - max
                  - expiry_duration_type
                description: >-
                  Rollover configuration for unused units. If set, unused
                  included units roll over to the next period.
            required:
              - feature_id
              - included
              - unlimited
              - reset
              - price
          description: >-
            Feature configurations included in this plan. Each item defines
            included units, pricing, and reset behavior for a feature.
        free_trial:
          type: object
          properties:
            duration_length:
              type: number
              description: Number of duration_type periods the trial lasts.
            duration_type:
              enum:
                - day
                - month
                - year
              type: string
              description: Unit of time for the trial duration ('day', 'month', 'year').
            card_required:
              type: boolean
              description: >-
                Whether a payment method is required to start the trial. If
                true, customer will be charged after trial ends.
            on_end:
              anyOf:
                - enum:
                    - bill
                    - revert
                  type: string
                - type: 'null'
              description: >-
                Behavior when the trial ends. 'bill' charges the customer
                (default). 'revert' expires the trial and restores the
                customer's previous plan.
          required:
            - duration_length
            - duration_type
            - card_required
          description: >-
            Free trial configuration. If set, new customers can try this plan
            before being charged.
        created_at:
          type: number
          description: Unix timestamp (ms) when the plan was created.
        env:
          enum:
            - sandbox
            - live
          type: string
          description: Environment this plan belongs to ('sandbox' or 'live').
        archived:
          type: boolean
          description: >-
            Whether the plan is archived. Archived plans cannot be attached to
            new customers.
        base_variant_id:
          anyOf:
            - type: string
            - type: 'null'
          description: >-
            Deprecated. Use variant_details.base_plan_id instead. If this is a
            variant, the ID of the base plan it was created from.
        variant_details:
          type: object
          properties:
            base_plan_id:
              type: string
              description: The ID of the base plan this variant was derived from.
            customize:
              type: object
              properties:
                price:
                  anyOf:
                    - type: object
                      properties:
                        amount:
                          type: number
                          description: Base price amount for the plan.
                        interval:
                          enum:
                            - one_off
                            - week
                            - month
                            - quarter
                            - semi_annual
                            - year
                          type: string
                          description: Billing interval (e.g. 'month', 'year').
                        interval_count:
                          type: number
                          description: >-
                            Number of intervals per billing cycle. Defaults to
                            1.
                        additional_currencies:
                          type: array
                          items:
                            type: object
                            properties:
                              currency:
                                type: string
                                description: >-
                                  Three-letter Stripe-supported currency code
                                  (e.g. 'eur', 'gbp').
                              amount:
                                type: number
                                description: >-
                                  Price amount in this currency. Set explicitly
                                  per currency, not converted from the base
                                  amount.
                            required:
                              - currency
                              - amount
                          description: >-
                            Base price amounts in additional currencies. The
                            base 'amount' is in the org's default currency.
                      required:
                        - amount
                        - interval
                      title: BasePrice
                      description: Base price configuration for a plan.
                    - type: 'null'
                  description: >-
                    Override the base price of the plan. Pass null to remove the
                    base price.
                add_items:
                  type: array
                  items:
                    type: object
                    properties:
                      feature_id:
                        type: string
                        description: The ID of the feature to configure.
                      included:
                        type: number
                        description: >-
                          Number of free units included. Balance resets to this
                          each interval for consumable features.
                      unlimited:
                        type: boolean
                        description: >-
                          If true, customer has unlimited access to this
                          feature.
                      reset:
                        type: object
                        properties:
                          interval:
                            enum:
                              - one_off
                              - minute
                              - hour
                              - day
                              - week
                              - month
                              - quarter
                              - semi_annual
                              - year
                            type: string
                            description: >-
                              Interval at which balance resets (e.g. 'month',
                              'year'). For consumable features only.
                          interval_count:
                            type: number
                            description: Number of intervals between resets. Defaults to 1.
                        required:
                          - interval
                        description: >-
                          Reset configuration for consumable features. Omit for
                          non-consumable features like seats.
                      price:
                        type: object
                        properties:
                          amount:
                            type: number
                            description: >-
                              Price per billing_units after included usage.
                              Either 'amount' or 'tiers' is required.
                          additional_currencies:
                            type: array
                            items:
                              type: object
                              properties:
                                currency:
                                  type: string
                                  description: >-
                                    Three-letter Stripe-supported currency code
                                    (e.g. 'eur', 'gbp').
                                amount:
                                  type: number
                                  description: >-
                                    Price amount in this currency. Set
                                    explicitly per currency, not converted from
                                    the base amount.
                              required:
                                - currency
                                - amount
                            description: >-
                              Amounts in additional currencies for this flat
                              price. The base 'amount' is in the org's default
                              currency. Only valid with 'amount', not 'tiers'.
                          tiers:
                            type: array
                            items:
                              type: object
                              properties:
                                to:
                                  anyOf:
                                    - type: number
                                    - const: inf
                                amount:
                                  type: number
                                flat_amount:
                                  type: number
                                additional_currencies:
                                  type: array
                                  items:
                                    type: object
                                    properties:
                                      currency:
                                        type: string
                                        description: >-
                                          Three-letter Stripe-supported currency
                                          code (e.g. 'eur', 'gbp').
                                      amount:
                                        type: number
                                        description: >-
                                          Per-unit amount for this tier in this
                                          currency.
                                      flat_amount:
                                        type: number
                                        description: >-
                                          Flat amount for this tier in this
                                          currency, if the tier uses one.
                                    required:
                                      - currency
                              required:
                                - to
                                - amount
                            description: >-
                              Tiered pricing.  Either 'amount' or 'tiers' is
                              required.
                          tier_behavior:
                            enum:
                              - graduated
                              - volume
                            type: string
                          interval:
                            enum:
                              - one_off
                              - week
                              - month
                              - quarter
                              - semi_annual
                              - year
                            type: string
                            description: >-
                              Billing interval. For consumable features, should
                              match reset.interval.
                          interval_count:
                            type: number
                            default: 1
                            description: >-
                              Number of intervals per billing cycle. Defaults to
                              1.
                          billing_units:
                            type: number
                            default: 1
                            description: >-
                              Units per price increment. Usage is rounded UP
                              when billed (e.g. billing_units=100 means 101
                              rounds to 200).
                          billing_method:
                            enum:
                              - prepaid
                              - usage_based
                            type: string
                            description: >-
                              'prepaid' for upfront payment (seats),
                              'usage_based' for pay-as-you-go.
                          max_purchase:
                            anyOf:
                              - type: number
                              - type: 'null'
                            description: >-
                              Max units purchasable beyond included. E.g.
                              included=100, max_purchase=300 allows 400 total.
                              Null for no limit.
                        required:
                          - interval
                          - billing_method
                        description: >-
                          Pricing for usage beyond included units. Omit for free
                          features.
                      proration:
                        type: object
                        properties:
                          on_increase:
                            enum:
                              - bill_immediately
                              - prorate_immediately
                              - prorate_next_cycle
                              - bill_next_cycle
                            type: string
                            description: >-
                              Billing behavior when quantity increases
                              mid-cycle.
                          on_decrease:
                            enum:
                              - prorate
                              - prorate_immediately
                              - prorate_next_cycle
                              - none
                              - no_prorations
                            type: string
                            description: Credit behavior when quantity decreases mid-cycle.
                        required:
                          - on_increase
                          - on_decrease
                        description: >-
                          Proration settings for prepaid features. Controls
                          mid-cycle quantity change billing.
                      rollover:
                        type: object
                        properties:
                          max:
                            type: number
                            description: Max rollover units. Omit for unlimited rollover.
                          max_percentage:
                            type: number
                            description: >-
                              Maximum rollover as a percentage (0-100) of
                              included + prepaid grant. Mutually exclusive with
                              max.
                          expiry_duration_type:
                            enum:
                              - month
                              - forever
                            type: string
                            description: When rolled over units expire.
                          expiry_duration_length:
                            type: number
                            description: Number of periods before expiry.
                        required:
                          - expiry_duration_type
                        description: >-
                          Rollover config for unused units. If set, unused
                          included units carry over.
                    required:
                      - feature_id
                    title: PlanItem
                    description: >-
                      Configuration for a feature item in a plan, including
                      usage limits, pricing, and rollover settings.
                  description: Items to add to the plan.
                remove_items:
                  type: array
                  items:
                    type: object
                    properties:
                      feature_id:
                        type: string
                        description: Match items linked to this feature.
                      billing_method:
                        enum:
                          - prepaid
                          - usage_based
                        type: string
                        description: >-
                          Match items with this billing method (prepaid or
                          usage_based).
                      interval:
                        anyOf:
                          - enum:
                              - one_off
                              - week
                              - month
                              - quarter
                              - semi_annual
                              - year
                            type: string
                          - enum:
                              - one_off
                              - minute
                              - hour
                              - day
                              - week
                              - month
                              - quarter
                              - semi_annual
                              - year
                            type: string
                        description: >-
                          Match items with this interval. Accepts either a
                          BillingInterval (price-side) or a ResetInterval
                          (reset-side, includes day/hour/minute) so price-less
                          items keyed by reset.interval can be disambiguated.
                      interval_count:
                        type: integer
                        minimum: -9007199254740991
                        maximum: 9007199254740991
                        exclusiveMinimum: 0
                        description: >-
                          Match items with this interval_count. Disambiguates
                          between items that share an interval but differ in
                          count.
                    title: PlanItemFilter
                    description: >-
                      Filter for matching plan items. All provided fields must
                      match (AND).
                  description: Filters selecting items to remove from the plan.
                free_trial:
                  anyOf:
                    - type: object
                      properties:
                        duration_length:
                          type: number
                          description: Number of duration_type periods the trial lasts.
                        duration_type:
                          enum:
                            - day
                            - month
                            - year
                          type: string
                          default: month
                          description: Unit of time for the trial ('day', 'month', 'year').
                        card_required:
                          type: boolean
                          default: true
                          description: >-
                            If true, payment method required to start trial.
                            Customer is charged after trial ends.
                        on_end:
                          enum:
                            - bill
                            - revert
                          type: string
                          description: >-
                            Behavior when the trial ends. 'bill' charges the
                            customer (default). 'revert' expires the trial and
                            restores the customer's previous plan.
                      required:
                        - duration_length
                      title: FreeTrialParams
                      description: Free trial configuration for a plan.
                    - type: 'null'
                  description: >-
                    Override the plan's default free trial. Pass an object to
                    set a custom trial, or null to remove the trial entirely.
                billing_controls:
                  type: object
                  properties:
                    auto_topups:
                      type: array
                      items:
                        type: object
                        properties:
                          feature_id:
                            type: string
                            description: >-
                              The ID of the feature (credit balance) to auto
                              top-up.
                          enabled:
                            type: boolean
                            default: false
                            description: Whether auto top-up is enabled.
                          threshold:
                            type: number
                            description: >-
                              When the balance drops below this threshold, an
                              auto top-up will be purchased.
                          quantity:
                            type: number
                            minimum: 1
                            description: Amount of credits to add per auto top-up.
                          purchase_limit:
                            type: object
                            properties:
                              interval:
                                enum:
                                  - hour
                                  - day
                                  - week
                                  - month
                                type: string
                                description: >-
                                  The time interval for the purchase limit
                                  window.
                              interval_count:
                                type: number
                                minimum: 1
                                default: 1
                                description: >-
                                  Number of intervals in the purchase limit
                                  window.
                              limit:
                                type: number
                                minimum: 1
                                description: >-
                                  Maximum number of auto top-ups allowed within
                                  the interval.
                              count:
                                type: number
                                minimum: 0
                                description: >-
                                  Set the current window's consumed auto top-up
                                  count. Omit to leave runtime state unchanged.
                            required:
                              - interval
                              - limit
                            description: >-
                              Optional rate limit to cap how often auto top-ups
                              occur. Pass count to set the current window's
                              consumed top-ups.
                          invoice_mode:
                            type: boolean
                            description: >-
                              When true, auto top-up creates a send_invoice
                              invoice instead of auto-charging.
                        required:
                          - feature_id
                          - threshold
                          - quantity
                      description: List of auto top-up configurations per feature.
                    spend_limits:
                      type: array
                      items:
                        type: object
                        properties:
                          feature_id:
                            type: string
                            description: Optional feature ID this spend limit applies to.
                          enabled:
                            type: boolean
                            default: false
                            description: Whether the overage spend limit is enabled.
                          limit_type:
                            enum:
                              - absolute
                              - usage_percentage
                            type: string
                            description: >-
                              How overage_limit is interpreted: an absolute
                              overage cap (default) or a percentage of the
                              main-plan allowance.
                          overage_limit:
                            type: number
                            minimum: 0
                            description: >-
                              Overage cap for the feature: absolute units, or a
                              percent (e.g. 120) when limit_type is
                              usage_percentage.
                          skip_overage_billing:
                            type: boolean
                            description: >-
                              When true, overage for this feature is not posted
                              to Stripe. Usage tracking and balance resets still
                              behave normally.
                      description: >-
                        List of overage spend limits per feature (caps overage
                        spend).
                    usage_limits:
                      type: array
                      items:
                        type: object
                        properties:
                          feature_id:
                            type: string
                            description: The feature this usage limit applies to.
                          enabled:
                            type: boolean
                            default: true
                            description: Whether this usage limit is enabled.
                          limit:
                            type: number
                            minimum: 0
                            description: Maximum units allowed per interval.
                          interval:
                            enum:
                              - day
                              - week
                              - month
                              - year
                            type: string
                            description: >-
                              Interval for the cap, aligned to the customer's
                              billing cycle.
                          filter:
                            type: object
                            properties:
                              properties:
                                type: object
                                propertyNames:
                                  type: string
                                  minLength: 1
                                  maxLength: 64
                                additionalProperties: {}
                            required:
                              - properties
                            description: >-
                              When set, only usage from events whose properties
                              match counts toward this cap. Omit to count all
                              usage of the feature.
                        required:
                          - feature_id
                          - limit
                          - interval
                      description: >-
                        List of hard usage caps per feature (max units per
                        interval).
                    usage_alerts:
                      type: array
                      items:
                        type: object
                        properties:
                          feature_id:
                            type: string
                            description: The feature ID this alert applies to.
                          enabled:
                            type: boolean
                            default: true
                            description: Whether this usage alert is enabled.
                          threshold:
                            type: number
                            minimum: 0
                            description: >-
                              The threshold value that triggers the alert. For
                              usage or remaining, this is an absolute count. For
                              usage_percentage or remaining_percentage, this is
                              a percentage (0-100).
                          threshold_type:
                            enum:
                              - usage
                              - usage_percentage
                              - remaining
                              - remaining_percentage
                            type: string
                            description: >-
                              Whether the threshold is an absolute count or a
                              percentage of the usage allowance or remaining
                              balance.
                          name:
                            type: string
                            description: >-
                              Optional user-defined label to distinguish
                              multiple alerts on the same feature.
                        required:
                          - threshold
                          - threshold_type
                      description: List of usage alert configurations per feature.
                    overage_allowed:
                      type: array
                      items:
                        type: object
                        properties:
                          feature_id:
                            type: string
                            description: >-
                              The feature ID this overage allowed control
                              applies to.
                          enabled:
                            type: boolean
                            default: false
                            description: Whether overage is allowed for this feature.
                        required:
                          - feature_id
                      description: >-
                        List of overage allowed controls per feature. When
                        enabled, usage can exceed balance.
                  description: >-
                    Override the plan's billing controls (auto top-ups, spend
                    limits, usage limits, usage alerts, overage allowed) for
                    this customer.
              additionalProperties: false
              description: >-
                The customization that transforms the base plan into this
                variant.
          required:
            - base_plan_id
          description: Details about how this variant relates to its latest base plan.
        config:
          type: object
          properties:
            ignore_past_due:
              type: boolean
              default: false
              description: >-
                If true, entitlements attached to this plan will still reset on
                schedule even when the customer's product is in a past_due
                state.
          description: Miscellaneous plan-level configuration flags.
        billing_controls:
          type: object
          properties:
            auto_topups:
              type: array
              items:
                type: object
                properties:
                  feature_id:
                    type: string
                    description: The ID of the feature (credit balance) to auto top-up.
                  enabled:
                    type: boolean
                    default: false
                    description: Whether auto top-up is enabled.
                  threshold:
                    type: number
                    description: >-
                      When the balance drops below this threshold, an auto
                      top-up will be purchased.
                  quantity:
                    type: number
                    minimum: 1
                    description: Amount of credits to add per auto top-up.
                  purchase_limit:
                    type: object
                    properties:
                      interval:
                        enum:
                          - hour
                          - day
                          - week
                          - month
                        type: string
                        description: The time interval for the purchase limit window.
                      interval_count:
                        type: number
                        minimum: 1
                        default: 1
                        description: Number of intervals in the purchase limit window.
                      limit:
                        type: number
                        minimum: 1
                        description: >-
                          Maximum number of auto top-ups allowed within the
                          interval.
                    required:
                      - interval
                      - limit
                    description: Optional rate limit to cap how often auto top-ups occur.
                  invoice_mode:
                    type: boolean
                    description: >-
                      When true, auto top-up creates a send_invoice invoice
                      instead of auto-charging.
                required:
                  - feature_id
                  - threshold
                  - quantity
              description: List of auto top-up configurations per feature.
            spend_limits:
              type: array
              items:
                type: object
                properties:
                  feature_id:
                    type: string
                    description: Optional feature ID this spend limit applies to.
                  enabled:
                    type: boolean
                    default: false
                    description: Whether the overage spend limit is enabled.
                  limit_type:
                    enum:
                      - absolute
                      - usage_percentage
                    type: string
                    description: >-
                      How overage_limit is interpreted: an absolute overage cap
                      (default) or a percentage of the main-plan allowance.
                  overage_limit:
                    type: number
                    minimum: 0
                    description: >-
                      Overage cap for the feature: absolute units, or a percent
                      (e.g. 120) when limit_type is usage_percentage.
                  skip_overage_billing:
                    type: boolean
                    description: >-
                      When true, overage for this feature is not posted to
                      Stripe. Usage tracking and balance resets still behave
                      normally.
              description: List of overage spend limits per feature (caps overage spend).
            usage_limits:
              type: array
              items:
                type: object
                properties:
                  feature_id:
                    type: string
                    description: The feature this usage limit applies to.
                  enabled:
                    type: boolean
                    default: true
                    description: Whether this usage limit is enabled.
                  limit:
                    type: number
                    minimum: 0
                    description: Maximum units allowed per interval.
                  interval:
                    enum:
                      - day
                      - week
                      - month
                      - year
                    type: string
                    description: >-
                      Interval for the cap, aligned to the customer's billing
                      cycle.
                  filter:
                    type: object
                    properties:
                      properties:
                        type: object
                        propertyNames:
                          type: string
                          minLength: 1
                          maxLength: 64
                        additionalProperties: {}
                    required:
                      - properties
                    description: >-
                      When set, only usage from events whose properties match
                      counts toward this cap. Omit to count all usage of the
                      feature.
                required:
                  - feature_id
                  - limit
                  - interval
              description: List of hard usage caps per feature (max units per interval).
            usage_alerts:
              type: array
              items:
                type: object
                properties:
                  feature_id:
                    type: string
                    description: The feature ID this alert applies to.
                  enabled:
                    type: boolean
                    default: true
                    description: Whether this usage alert is enabled.
                  threshold:
                    type: number
                    minimum: 0
                    description: >-
                      The threshold value that triggers the alert. For usage or
                      remaining, this is an absolute count. For usage_percentage
                      or remaining_percentage, this is a percentage (0-100).
                  threshold_type:
                    enum:
                      - usage
                      - usage_percentage
                      - remaining
                      - remaining_percentage
                    type: string
                    description: >-
                      Whether the threshold is an absolute count or a percentage
                      of the usage allowance or remaining balance.
                  name:
                    type: string
                    description: >-
                      Optional user-defined label to distinguish multiple alerts
                      on the same feature.
                required:
                  - threshold
                  - threshold_type
              description: List of usage alert configurations per feature.
            overage_allowed:
              type: array
              items:
                type: object
                properties:
                  feature_id:
                    type: string
                    description: The feature ID this overage allowed control applies to.
                  enabled:
                    type: boolean
                    default: false
                    description: Whether overage is allowed for this feature.
                required:
                  - feature_id
              description: >-
                List of overage allowed controls per feature. When enabled,
                usage can exceed balance.
          description: Plan-level billing controls used as customer defaults.
        metadata:
          type: object
          propertyNames:
            type: string
          additionalProperties: {}
          description: >-
            Arbitrary key-value metadata defined by you for your own use. Shared
            across all versions of the plan.
        customer_eligibility:
          type: object
          properties:
            trial_available:
              type: boolean
              description: >-
                Whether the trial on this plan is available to this customer.
                For example, if the customer used the trial in the past, this
                will be false.
            status:
              enum:
                - active
                - scheduled
              type: string
              description: >-
                The customer's current status with this plan. 'active' if
                attached, 'scheduled' if pending activation.
            canceling:
              type: boolean
              description: >-
                Whether the customer's active instance of this plan is set to
                cancel.
            trialing:
              type: boolean
              description: Whether the customer is currently on a free trial of this plan.
            attach_action:
              enum:
                - activate
                - upgrade
                - downgrade
                - none
                - purchase
              type: string
              description: >-
                The action that would occur if this plan were attached to the
                customer.
          required:
            - attach_action
      required:
        - id
        - name
        - description
        - group
        - version
        - add_on
        - auto_enable
        - price
        - items
        - created_at
        - env
        - archived
        - base_variant_id
        - config
        - metadata
    Balance:
      type: object
      properties:
        feature_id:
          type: string
          description: The feature ID this balance is for.
        feature:
          type: object
          properties:
            id:
              type: string
              description: >-
                The unique identifier for this feature, used in /check and
                /track calls.
            name:
              type: string
              description: Human-readable name displayed in the dashboard and billing UI.
            type:
              enum:
                - boolean
                - metered
                - credit_system
                - ai_credit_system
              type: string
              description: >-
                Feature type: 'boolean' for on/off access, 'metered' for
                usage-tracked features, 'credit_system' for unified credit
                pools, 'ai_credit_system' for model-based token pricing.
            consumable:
              type: boolean
              description: >-
                For metered features: true if usage resets periodically (API
                calls, credits), false if allocated persistently (seats,
                storage).
            event_names:
              type: array
              items:
                type: string
              description: >-
                Event names that trigger this feature's balance. Allows multiple
                features to respond to a single event.
            credit_schema:
              type: array
              items:
                type: object
                properties:
                  metered_feature_id:
                    type: string
                    description: >-
                      ID of the metered feature that draws from this credit
                      system.
                  credit_cost:
                    type: number
                    description: Credits consumed per unit of the metered feature.
                required:
                  - metered_feature_id
                  - credit_cost
              description: >-
                For credit_system features: maps metered features to their
                credit costs.
            model_markups:
              anyOf:
                - type: object
                  propertyNames:
                    type: string
                  additionalProperties:
                    type: object
                    properties:
                      markup:
                        type: number
                        minimum: -100
                      input_cost:
                        type: number
                        minimum: 0
                      output_cost:
                        type: number
                        minimum: 0
                - type: 'null'
              description: Per-model markup overrides for AI credit systems.
            default_markup:
              type: number
              minimum: -100
              description: >-
                Default percentage markup for AI credit systems. Use -100 to
                make usage free.
            provider_markups:
              anyOf:
                - type: object
                  propertyNames:
                    type: string
                  additionalProperties:
                    type: object
                    properties:
                      markup:
                        type: number
                        minimum: -100
                    required:
                      - markup
                - type: 'null'
              description: Per-provider default markup percentages for AI credit systems.
            display:
              type: object
              properties:
                singular:
                  anyOf:
                    - type: string
                    - type: 'null'
                  description: Singular form for UI display (e.g., 'API call', 'seat').
                plural:
                  anyOf:
                    - type: string
                    - type: 'null'
                  description: Plural form for UI display (e.g., 'API calls', 'seats').
              description: >-
                Display names for the feature in billing UI and customer-facing
                components.
            archived:
              type: boolean
              description: Whether the feature is archived and hidden from the dashboard.
          required:
            - id
            - name
            - type
            - consumable
            - archived
          description: The full feature object if expanded.
        granted:
          type: number
          description: Total balance granted (included + prepaid).
        remaining:
          type: number
          minimum: 0
          description: Remaining balance available for use.
        usage:
          type: number
          description: Total usage consumed in the current period.
        unlimited:
          type: boolean
          description: Whether this feature has unlimited usage.
        overage_allowed:
          type: boolean
          description: >-
            Whether usage beyond the granted balance is allowed (with overage
            charges).
        max_purchase:
          anyOf:
            - type: number
            - type: 'null'
          description: >-
            Maximum quantity that can be purchased as a top-up, or null for
            unlimited.
        next_reset_at:
          anyOf:
            - type: number
            - type: 'null'
          description: Timestamp when the balance will reset, or null for no reset.
        breakdown:
          type: array
          items:
            type: object
            properties:
              id:
                type: string
                default: ''
                description: The unique identifier for this balance breakdown.
              plan_id:
                anyOf:
                  - type: string
                  - type: 'null'
                description: >-
                  The plan ID this balance originates from, or null for
                  standalone balances.
              included_grant:
                type: number
                description: Amount granted from the plan's included usage.
              prepaid_grant:
                type: number
                description: Amount granted from prepaid purchases or top-ups.
              remaining:
                type: number
                description: Remaining balance available for use.
              usage:
                type: number
                description: Amount consumed in the current period.
              unlimited:
                type: boolean
                description: Whether this balance has unlimited usage.
              reset:
                anyOf:
                  - type: object
                    properties:
                      interval:
                        anyOf:
                          - enum:
                              - one_off
                              - minute
                              - hour
                              - day
                              - week
                              - month
                              - quarter
                              - semi_annual
                              - year
                            type: string
                          - const: multiple
                        description: >-
                          The reset interval (hour, day, week, month, etc.) or
                          'multiple' if combined from different intervals.
                      interval_count:
                        type: number
                        description: >-
                          Number of intervals between resets (eg. 2 for
                          bi-monthly).
                      resets_at:
                        anyOf:
                          - type: number
                          - type: 'null'
                        description: Timestamp when the balance will next reset.
                    required:
                      - interval
                      - resets_at
                  - type: 'null'
                description: Reset configuration for this balance, or null if no reset.
              price:
                anyOf:
                  - type: object
                    properties:
                      amount:
                        type: number
                        description: The per-unit price amount.
                      tiers:
                        type: array
                        items:
                          type: object
                          properties:
                            to:
                              anyOf:
                                - type: number
                                - const: inf
                            amount:
                              type: number
                            flat_amount:
                              type: number
                          required:
                            - to
                            - amount
                        description: Tiered pricing configuration if applicable.
                      tier_behavior:
                        enum:
                          - graduated
                          - volume
                        type: string
                        description: >-
                          How tiers are applied: graduated (split across bands)
                          or volume (flat rate for the matched tier).
                      billing_units:
                        type: number
                        description: >-
                          The number of units per billing increment (eg. $9 /
                          250 units).
                      billing_method:
                        enum:
                          - prepaid
                          - usage_based
                        type: string
                        description: Whether usage is prepaid or billed pay-per-use.
                      max_purchase:
                        anyOf:
                          - type: number
                          - type: 'null'
                        description: >-
                          Maximum quantity that can be purchased, or null for
                          unlimited.
                    required:
                      - billing_units
                      - billing_method
                      - max_purchase
                  - type: 'null'
                description: Pricing configuration if this balance has usage-based pricing.
              expires_at:
                anyOf:
                  - type: number
                  - type: 'null'
                description: >-
                  Timestamp when this balance expires, or null for no
                  expiration.
            required:
              - plan_id
              - included_grant
              - prepaid_grant
              - remaining
              - usage
              - unlimited
              - reset
              - price
              - expires_at
          description: >-
            Detailed breakdown of balance sources when stacking multiple plans
            or grants.
        rollovers:
          type: array
          items:
            type: object
            properties:
              balance:
                type: number
                description: Amount of balance rolled over from a previous period.
              expires_at:
                type: number
                description: Timestamp when the rollover balance expires.
            required:
              - balance
              - expires_at
          description: Rollover balances carried over from previous periods.
      required:
        - feature_id
        - granted
        - remaining
        - usage
        - unlimited
        - overage_allowed
        - max_purchase
        - next_reset_at
      examples:
        - feature_id: messages
          granted: 100
          remaining: 72
          usage: 28
          unlimited: false
          overage_allowed: false
          max_purchase: null
          next_reset_at: 1773851121437
          breakdown:
            - id: cus_ent_39qmLooixXLAqMywgXywjAz96rV
              plan_id: pro_plan
              included_grant: 100
              prepaid_grant: 0
              remaining: 72
              usage: 28
              unlimited: false
              reset:
                interval: month
                resets_at: 1773851121437
              price: null
              expires_at: null
  securitySchemes:
    secretKey:
      type: http
      scheme: bearer
      bearerFormat: JWT

````