Using OAuth 2.0 to Access Google APIs (Experimental) Caution: Google's OAuth 2.0 support is in an early preview and may change at any time, or as the final specifications evolve. Google supports a recent draft of the OAuth 2.0 protocol with bearer tokens for authorizing access to private user data. The spec is close to settling down, and we intend to update our code to match the final OAuth 2.0 an