# Authenticate API requests

Get credentials and authenticate your requests to the site's APIs. The [quickstart](/source-cms/authenticate/quickstart/) authenticates your first request.

- [Quickstart](/source-cms/authenticate/quickstart/): Create an API client, get an OAuth 2.0 access token, and make one authenticated API call. All in under 10 minutes.
- [Authentication & API credentials](/source-cms/authenticate/guide/): Choose the right OAuth 2.0 grant type, scope tokens minimally, configure API access and CORS, and store and rotate credentials without downtime.