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

# Errors

## HTTP Errors

The following table shows the HTTP errors that can be returned by the C1 API:

* 400 `Bad Request`: The request payload has errors.
* 403 `Forbidden`: The request is missing a valid API key.
* 404 `Not Found`: Likely a result of invalid path.
* 413 `Request Entity Too Large`: Request exceeds the maximum size allowed.
* 429 `Too Many Requests`: Rate limit exceeded.
* 500 `Internal Server Error`: An unexpected error occurred on our side.

## Generated UI Errors

In addition to HTTP errors, the C1 API may return errors within the generated response.
This is handled by the UI components automatically and you do not need to handle them manually.