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# Monthly API Quota

* **Default:** 100 calls per calendar month (UTC `YYYY-MM`) per active subscription
* **Anchor:** `subscription.id` when an active subscription exists, otherwise `organization.id`; renewal mid-month resets usage
* **Counting:** only `2xx` responses increment; 4xx/5xx do not count (accepted drift via `waitUntil`)
* **On exceed:** HTTP 429 with `ERR_PUBLIC_API_QUOTA_EXCEEDED`, `Retry-After` (seconds to next month), and `meta { quota, used, period, resetsAt }`