> For the complete documentation index, see [llms.txt](https://api.clearinghouse.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://api.clearinghouse.net/rate-limits.md).

# Rate Limits

All API requests are limited to **60 requests per minute per API key**.

If the limit is exceeded, the API returns:

`HTTP 429 Too Many Requests`

Wait until the rate limit window resets before retrying.