In authentication, a user or application proves they are who they say they are by providing valid credentials. The most common verification is password, often combined with other methods, such as a fingerprint. Auth0 simplifies the use of open industry standards like OAuth 2.0, OIDC, and SAML to authenticate. Users can log into your applications with social media credentials, corporate accounts, and a broad range of other credentials.

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Add Login

Implement Auth0 Universal Login (or an alternative) to control access to your applications.

Login

Choose from a variety of user login options.

Single Sign-On

Enable users to log in to one application and automatically authenticate in other applications.

Passwordless

Let users enter mobile phone numbers or email addresses and receive a one-time code or link to log in without a password.

Custom Token Exchange

Learn about Custom Token Exchange Early Access features.

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Provision Users

Source users from social identity providers (such as Facebook or SalesForce), enterprise user stores (such as Active Directory or Google Workspace), a custom database, and more.

Identity Providers

Set up sources of user accounts to authenticate your applications and APIs.

Database Connections

Authenticate users with an email/username and password and save their credentials in an Auth0-provided user store or in your own database.

Enterprise Connections

Authenticate users with external, federated identity providers such as Azure AD, Google Workspace, and PingFederate.

Protocols

Easily implement open industry-standard protocols like OAuth 2.0, SAML, and LDAP for authentication and authorization.

Connection Settings Best Practices

Review best practices when configuring social and database connections.