Rate limits

Each API key has a per-minute request budget. Every response tells you where you stand.

Limits

Keys start at 60 requests a minute, refilled continuously, so short bursts are fine. Limits are per key; ask us if you need more. Reading an open stream counts once, when you open it.

Headers

Every authenticated response carries RateLimit-Limit and RateLimit-Remaining. When you run out, you get 429 with Retry-After in seconds.

HTTP/1.1 429 Too Many RequestsRateLimit-Limit: 60RateLimit-Remaining: 0Retry-After: 4

Backing off

Wait Retry-After seconds, then retry with the same Idempotency-Key. Don't retry in a tight loop: every rejected request is a request too.