Rate limit
Each API key may make 120 requests per minute across all endpoints. Requests
with a missing or invalid key are limited to 30 per minute per IP address.
Over a limit, Chambr returns 429 rate_limited with a Retry-After header in
seconds.
Timeouts
Give POST /v1/calls a client timeout of at least 60 seconds. Finding the
rep's speaker and classifying the call type can take 30 seconds; sending
transcript.rep_speaker and call_type skips both. After a timeout, retry:
the request is idempotent.
Retry rules
| Response | Do |
|---|---|
429 rate_limited |
Wait Retry-After seconds, then retry |
503 inference_unavailable |
Wait Retry-After, or resend with transcript.rep_speaker |
500 internal_error, network error, timeout |
Retry with exponential backoff, for example 2, 4, 8 and 16 seconds, then alert |
Any other 4xx |
Do not retry unchanged; fix the request. See Errors |
Backfills
Send one or two calls per second rather than all at once. Scoring takes longer during a large backfill.