# Error handling

> For AI agents: the complete documentation index is at
> [https://docs.retrocast.com/llms.txt](https://docs.retrocast.com/llms.txt) — every page is also available as
> markdown by appending `.md` to its URL.

| HTTP Status | Description |
| ----------- | ----------- |
| `200`       | Success     |
| `401`       | Unauthorized — invalid or missing API key |
| `403`       | Forbidden — no access to this resource |
| `404`       | Not found — resource does not exist |
| `422`       | Unprocessable entity — invalid request body or parameters |
| `429`       | Rate limited — too many requests |
| `500`       | Internal server error |

## Support and feedback

Please reach out at `support@theforecastingcompany.com`