> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sigmachat.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Rate limits

> Every response tells you where you stand.

Every response carries:

| Header                  | Meaning                               |
| ----------------------- | ------------------------------------- |
| `X-RateLimit-Limit`     | Requests allowed in the window        |
| `X-RateLimit-Remaining` | Requests left                         |
| `X-RateLimit-Reset`     | When the window resets (unix seconds) |

A blocked request returns `429` with the same headers. Back off until
the reset instead of retrying immediately.