Enable a streamlined, one-tap browser-mediated identity federation flow and an intuitive UI with the FedCM API. Support more users, even those who say 'no' to third-party cookies.

Add FedCM to your web app

Learn how FedCM benefits all the parties involved in the identity federation flow: Users, Relying Parties, and Identity Providers.
Learn how to implement FedCM on the Identity Provider side.
Implement a library for your Relying Parties.
File a Chromium issue to ask questions about the implementation currently available in Chrome.
Read the FedCM API explainer, and raise questions and follow discussion about the design of the API.
Read the specification.