Secure users, AI agents, and more with Auth0, an easy-to-implement, scalable, and adaptable authentication and authorization platform.

Auth0 Docs Browse the latest sample code, articles, tutorials, and API reference.

Auth0 exposes the following APIs for developers to consume in their applications.

Auth0 is a flexible, drop-in solution to add authentication and authorization services to your applications. Your team and organization can avoid the cost, time, and risk that come with building your own …

Introduction The Authentication API enables you to manage all aspects of user identity when you use Auth0. It offers endpoints so your users can log in, sign up, log out, access APIs, and more. The API …

The OAuth 2.0 authorization framework is a protocol that allows a user to grant a third-party web site or application access to the user’s protected resources, without necessarily revealing their long-term …

Learn about the various flows used for authentication and authorization of applications and APIs.

Learn about the ways to implement login authentication for your users with Auth0 Universal Login or Embedded Login.

Everything in Free, plus... Higher Auth, API limits, and Feature limits Multi-Factor Authentication (With OTP, Duo) Role-based Access Control Per Organization 10 Organizations (How we model your …

Experiments Shipped Auth for GenAI GenAI apps unlock use cases like personalized AI agents, automated data retrieval, and tool execution on behalf of users. Auth0.ai secures authentication and …