Auth0 handles login, user accounts, and API security as a service. Instead of building and maintaining your own login solution—with everything that entails in terms of password management, two-factor authentication, and protection against attacks—you connect to a solution that already handles all of this.

Login is security-critical

Custom-built login solutions are a common source of security vulnerabilities. Auth0 provides login as a managed service, with attack protection, compromised password alerts, and support for passkeys.

Built for B2B

With Organizations, each customer can have their own login method, branding, and roles—all within the same solution. This is often crucial when selling a service to multiple businesses.

Together with Microsoft solutions

Auth0 can connect to Microsoft Entra ID, allowing employees to sign in with their work account, while external users can use other methods.