> ## Documentation Index
> Fetch the complete documentation index at: https://hilos-40.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Errors & handling

On this page you can find a list of all the errors that can be returned by the API. If you encounter an error that is not listed here, please [contact us](mailto:hey@hilos.io).

| Error Code | Description                                                                                                |
| ---------- | ---------------------------------------------------------------------------------------------------------- |
| 404        | The requested resource was not found on this server. Maybe the HTTP method or endpoint is not correct      |
| 401        | The request requires user authentication. Check that your authentication header has `Token [YOUR API KEY]` |
| 403        | The request was a valid request, but the server is refusing to respond to it. Try again later.             |
| 405        | Method not allowed. You are probably using an incorrect HTTP Method                                        |
| 500        | A server error, please contact us or try again in a few minutes.                                           |