SynqedDocs

Rate limits

Per-key limits, the headers that report them, and how to back off.

Limits apply per API key, over a rolling one-minute window. They are enforced on each server instance, so under heavy load a key may briefly get somewhat more than this — design for the stated numbers, not the slack.

Limit
Reads (GET, and POST /v1/search)600 requests / minute
Writes (other POST, PATCH, DELETE)120 requests / minute

Every response to a valid key reports the window for the request's kind — including 403s, which count against it:

HeaderMeaning
X-RateLimit-LimitRequests allowed per minute.
X-RateLimit-RemainingRequests left in the current window.
X-RateLimit-ResetSeconds until the oldest request leaves the window.

Over the limit, the API returns 429 rate_limit_exceeded with a Retry-After header (seconds). Wait at least that long, then retry with jitter.

Bulk loads

Use POST /v1/documents/batch — 100 documents count as one write. Need higher limits for a backfill? Contact us.