Users & Auth

The Users & Auth tool manages the people who use your app and how they sign in. Open Users & Auth under Replit Cloud in the Tools pane. The tool has two tabs:

• Users: Everyone who has signed in to your app, with their name and last sign-in time. Search the list to find a specific user.
• Configure: Your app’s sign-in experience: the login screen’s name and icon, which sign-in providers your app offers, and the session secret.

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Choose your auth system

• Replit Auth: The zero-setup option. Ask Agent to add Replit Auth, and your app gets a prebuilt login page, user management, and secure sessions with no configuration.
• Clerk: A full-featured authentication service for apps that need more control, such as custom sign-in flows and your own OAuth branding. Set up custom sign-in providers for Google, GitHub, Apple, and X.

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How Agent chooses an auth system

You can choose an auth system by naming it in your message to Agent. For example, ask “Add user authentication with Replit Auth” or “Use Clerk for sign-up and login.” Agent uses the provider you request, regardless of your plan’s default. If you don’t specify a provider, Agent uses the default for the account that owns your app when adding new authentication: Replit Auth is the Enterprise default because it works well for internal tools used by teammates who already have Replit seats. They can sign in with their existing Replit accounts instead of creating separate app accounts.

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Change the Enterprise default

If you administer an Enterprise account, open Settings > Account > Advanced > Feature access > Default Authentication. Choose Replit Auth or Clerk Auth as the default for new authentication features across your billing account. You can still request a different provider in an individual Agent message.

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Next steps

• Replit Auth: Zero-setup sign-in for your app.
• Clerk Auth: Full-featured authentication.
• Sign-in providers: Bring your own OAuth credentials.