# Authentication

Didomi supports three types of providers by default: One-Time Password, Magic Link, and client-server authentication. This documentation covers how to configure different authentication providers at both the organization and widget levels. Additionally, it explains how to implement your authentication workflow in your frontend, depending on the authentication provider set.

**One-Time Password**

One-Time Password involves requesting the end user's email address and sending them an email containing a 6-digit code that they must enter in the widget to log in.

**Magic Link**

Magic Link involves requesting the end user's email address and sending them an email containing a link that will grant them access to the widget.

**Server authentication**

Server authentication involves authenticating the end user from your backend to create a seamless experience in which the end user is already authenticated in your system.

[Manage authentication providers](/api-and-platform/widgets/privacy-widgets/authentication/manage-authentication-providers.md)

[Authenticate your end-user](/api-and-platform/widgets/privacy-widgets/authentication/authenticate-your-end-user.md)


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