Rate limits
Limits vary by plan and by surface. The X-RateLimit-* and retry-after headers in every response tell you where you stand.
Rate limits & backoff
When you hit a limit, the gateway returns a 429 with a retry-after hint. Use exponential backoff with full jitter so a fleet of clients doesn't synchronize on the same recovery window.
Per-key limits are visible on the dashboard and can be raised on request for production workloads.