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

# Rate limits

> Stophy allows 600 requests a minute and 10 running at once per account, lower free limits without a key, and a clear way to handle a 429.

| | Limit |
| - | - |
| Requests | 600 a minute per account |
| Running at once | 10 per account |

Every call answers or fails within 25 seconds.

## Without a key

Endpoints marked `keyless: true` in the [endpoint catalog](https://api.stophy.dev/v1/endpoints) work with no key, over HTTP and [MCP](/mcp-server/keyless). Without a key you get the first page only. Free calls are limited to 10 a minute and 50 a day for each IP address, and going over returns a `429`.

[Sign up](https://stophy.dev/signup) for 1,000 free credits, higher limits and every endpoint.

## Headers

Responses include `X-RateLimit-Limit` and `X-RateLimit-Remaining`.

## When you go over

| Code | Status | What to do |
| - | - | - |
| `rateLimited` | `429` | Wait for the `Retry-After` header, which is also `retryAfterSeconds` in the body, then retry. |
| `tooManyInFlight` | `429` | Wait for one of your running calls to finish, then retry. |

Both are marked `retryable: true`. See [Errors and retries](/guides/errors-and-retries) for a retry loop.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.