Quickly add passwordless login to any platform. We provide easy integrations for Web, iOS, and Android apps.
Passwordless Sign In
Sign in faster with one-tap login for your websites and mobile apps.
Instantly login using a magic link or a verification code sent via email, SMS, or WhatsApp.
Authenticate users based on ownership of a device. Automatically log in from a trusted device or tap a prompt sent to your mobile app.
Authenticate with FaceID and Fingerprint from your websites.
<script src="https://js.cotter.app/lib/cotter.js"></script> <script> var cotter = new Cotter(API_KEY_ID); cotter.signInWithLink().showEmailForm(); </script>
Easy to Build, Easy to Use.
Add Passwordless Login in just a few lines of code.Read the Documentation