AddAuth documentation

Your Rails app. More ways to sign in.

Build on Rails authentication with email links, passkeys, hardened sessions, and optional bot checks. Start here, then make it your own.

Rails 8.0+ Ruby 3.3+ MIT licensed

From first sign-in to day-to-day use.

Install the RubyGems package in your Rails app and follow your first email link.

Set up email links, passkeys, recovery and session controls.

Create your initializer, enable features and look up every setting and default.

Check a missing email, an expired link, or an unexpected sign-out.

AddAuth uses the User and Session models from Rails’ authentication generator.

Start with sessions. Add email links and bot checks when your app needs them.

Use the included styles, map your own classes, or copy the views into your app.