> For the complete documentation index, see [llms.txt](https://docs.craft.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.craft.co/error-handling.md).

# Troubleshooting

If you have any questions about how the Craft API works, please email us at <hello@craft.co>.

## Error handling

Craft API uses the following HTTP error codes:

| Error code    | Error message           | Meaning                                                             |
| ------------- | ----------------------- | ------------------------------------------------------------------- |
| 200           | `OK`                    | Everything went well.                                               |
| 401           | `Unauthorized`          | Your API key is wrong.                                              |
| 404           | `Not Found`             | The specified URL could not be found.                               |
| 405           | `Method Not Allowed`    | You tried to access the API with an invalid method.                 |
| 500           | `Internal Server Error` | We had a problem with our server. Please contact us.                |
| 502, 503, 504 | `Service Unavailable`   | We are temporarily offline for maintenance. Please try again later. |