Send feedback Identity Platform Documentation Concepts Authentication Authentication Learn about authentication using Identity Platform. Users Identity Platform users in projects Learn about user properties, user lifecycles, sign-in providers, and authentication tokens. APIs Introduction to the Admin Auth API Learn about using the Firebase Admin SDK to integrate your own servers with Firebase Authentication. Was this page helpful? Let us know how we did: Send feedback Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates.