Orb Billing Rate Limits

Orb does not publish a hard, numeric rate limit for production API usage or a maximum request payload size; the docs instead ask customers to notify Orb before changing request volume or payload size by an order of magnitude from initial setup. The event ingestion path (POST /ingest) is the primary high-throughput surface and supports batched events per request. Test-mode event ingestion is constrained (documented around 2,000 events/minute and ~10 requests/second). When limits are exceeded the API returns HTTP 429 Too Many Requests, and Orb recommends retrying with exponential backoff. Specific production per-endpoint values are not reconciled in this artifact.