Documentation / Guides
Rate limits
Per-minute and monthly limits for live and sandbox GreyhoundAPI keys, the rate-limit response headers and how to back off cleanly.
| Tier | Per minute | Quota | WebSocket |
|---|---|---|---|
| Live | 120 | 250,000 / month | 2 connections |
| Live Plus | 180 | 600,000 / month | 2 connections |
| Sandbox | 60 | 500 / day | — |
Every response carries X-RateLimit-Limit, X-RateLimit-Remaining
and X-RateLimit-Reset. Exceeding the per-minute limit returns
429 rate_limited; exhausting the quota returns 429 quota_exceeded
until the window resets. On a 429, wait until the X-RateLimit-Reset instant
rather than hammering retries.
Check consumption any time with GET /v1/usage — it does not count against your limit.