## Authentication
The Guest REST API uses basic authentication.
Basic authentication involves sending a user name and a password with every request.
To find your user name and password, in Sitecore CDP, on the navigation pane, click **Settings** > **API access**:
- The user name is the **Client key**.
- The password is the **API token**.
You must include the user name and password in every request you make. For example:


```
curl -X GET '{baseURL}/v2/guests' \  
-u '{YOUR_USERNAME}:{YOUR_PASSWORD}' \  
-H 'Accept: application/json'
```