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

# Errors

The Content API will generate errors for the following cases:

* Status 400: Badly formed queries e.g. filter parameters that are not correctly encoded
* Status 401: Authentication failures e.g. unrecognized keys
* Status 403: Permissions errors e.g. under-privileged users
* Status 404: Unknown resources e.g. data which is not public
* Status 500: Server errors e.g. where something has gone

Errors are also formatted in JSON, as an array of error objects. The HTTP status code of the response along with the `errorType` property indicate the type of error.

The `message` field is designed to provide clarity on what exactly has gone wrong.

<ResponseExample>
  ```json theme={"dark"}
  {
      "errors": [
          {
              "message": "Unknown Content API Key",
              "errorType": "UnauthorizedError"
          }
      ]
  }
  ```
</ResponseExample>