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

# Authentication

> Authenticate Good Grants API requests using a private API key.

If you do not use an API key for your requests, or if you use
a key from the wrong account, your call will return a `403 Forbidden` error.

Authentication is performed by setting the following request header:

<ParamField header="x-api-key" type="string" required>
  Valid API key used for authentication and authorisation.

  Example:

  ```bash Request theme={null}
  curl -H "x-api-key: {api_key}" \
    -H "Accept: application/vnd.Creative Force.v2.3+json" \
    https://api.us.cr4ce.com/account
  ```
</ParamField>