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

# Error codes

Most of the errors you will encounter when using the Fernand API are listed below. If you encounter an error that's not documented here, please [contact our support team](mailto:support@getfernand.com).

The Fernand API uses standard HTTP status codes to indicate the result of your request:

| Error | Status                | Meaning                                                                           |
| :---- | :-------------------- | :-------------------------------------------------------------------------------- |
| 400   | Bad Request           | Your request is invalid. Often, it means a parameter was wrongly set.             |
| 401   | Unauthorized          | No API key were found.                                                            |
| 403   | Forbidden             | The provided API key is invalid.                                                  |
| 404   | Not Found             | The page you tried to reach was not found.                                        |
| 405   | Method Not Allowed    | The endpoint you tried to reach is not available with this HTTP method.           |
| 429   | Too Many Requests     | You sent too many request. Please see the Rate limiting section for more details. |
| 500   | Internal Server Error | We had a problem with our server.                                                 |

<Note>
  Need help troubleshooting an error? Our support team is here to help at [support@getfernand.com](mailto:support@getfernand.com).
</Note>