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

# Headers

> This section describes the headers expected by the Thanx API.

```bash theme={null}
STANDARD_HEADERS = '-H "Content-Type: application/json" ' \
  '-H "Accept-Version: v4.0" '\
  '-H "Accept: application/json" '\
  '-H "X-ClientId: 293487fhs98345yswoeir245789" '\

AUTH_HEADERS = '-H "Content-Type: application/json" ' \
  '-H "Accept-Version: v4.0" '\
  '-H "Accept: application/json" '\
  '-H "Authorization: Bearer 945148251b603ae34561d90acfe4050e67494d6d1e65d4d3d52798407f03c0bd" '\
  '-H "X-ClientId: 293487fhs98345yswoeir245789" '\
```

<ParamField query="Authorization" type="string">
  All Thanx Loyalty API endpoints are protected and must be authorized via end
  user access tokens. These access tokens can be retrieved through an
  integration with Thanx SSO. The format of the header should be: `Bearer
      access_token`. Some endpoints don't require a user to be signed in; these are
  called out in their separate sections.

  Example: `Bearer d6d6533c5ab9b528526f3e48a51e90b62`
</ParamField>

<ParamField query="Content-Type" type="string">
  The only accepted value is `application/json` or empty if no body
</ParamField>

<ParamField query="Accept-Version" type="string" required>
  The Accept-Version header specifies which version of the Thanx API that
  should be used. The current version is v4.0. This header is required for
  every request. Thanx will notify you when a new API version is available.

  Example: `v4.0`
</ParamField>

<ParamField query="Accept" type="string" required>
  The only accepted value is `application/json`
</ParamField>

<ParamField query="X-ClientId" type="string" required>
  Thanx will provide you with this value.

  Example: `f050d74b5c2b12ae17c85bd510addd7ba2`
</ParamField>