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

# Rate limit

> Rate limit behavior and response headers.

All endpoints are rate-limited, except Account endpoints.

<Warning>
  If you hit limits frequently, contact your account manager for capacity planning.
</Warning>

## Headers you may receive

| Header                 | Meaning                          |
| ---------------------- | -------------------------------- |
| `X-RateLimit-Limit`    | Max requests allowed in interval |
| `X-RateLimit-Interval` | Interval duration in seconds     |
| `Retry-After`          | Seconds to wait before retry     |

## Retry guidance

* Respect `Retry-After` when present.
* Use exponential backoff for repeated retries.