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Passkeys for Consumer Apps

Passkeys are a FIDO2/WebAuthn-based passwordless authentication method that replaces passwords with cryptographic key pairs stored on the user's device, enabling biometric or PIN-based login with phishing-resistant security.

Let users sign in with Face ID or a fingerprint - faster signups, no passwords to reset, phishing-resistant by default. Passkeys are on Business Pro and Enterprise.

Passkeys Authentication - FIDO2/WebAuthn phishing-resistant login

Key Features

Discover why passkeys are the future of authentication

Passwordless Security

Users on passkeys have no password to steal, reuse or reset

FIDO2/WebAuthn Compliant

Built on the industry-standard FIDO2 protocol for maximum compatibility

Biometric Authentication

Leverage device biometrics like fingerprint and face recognition

Cross-Platform Support

Works across devices and platforms for a consistent experience

Phishing Resistant

Domain-bound credentials prevent phishing attacks

Easy Implementation

One API alongside magic links, OTP and social login - deploy in hours, not months

How Passkeys Work

A simple, secure authentication flow for your users

  1. Registration

    User creates a passkey using their device's biometric or PIN

  2. Authentication

    User selects their account and verifies with biometric or PIN

  3. Secure Access

    User gains immediate access to your application

How Passkeys Work

Simple Integration

Implementing passkeys with MojoAuth is straightforward. Our SDKs handle the complexity, so you can focus on building your application.

  • Deploy in hours, not months
  • SDKs in 22+ languages
  • Detailed documentation and examples
  • Dedicated support for implementation
View implementation guide
index.html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <title>Passkey Login with MojoAuth JS</title>
  <script src="https://cdn.mojoauth.com/js/mojoauth.min.js" charset="UTF-8"></script>
</head>
<body>
  <h2>Passkey Login Demo with MojoAuth JS</h2>

  <button id="passkeyLoginBtn">Login with Passkey</button>

  <script>
    // Initialize MojoAuth (not used for passkey here, but included per your request)
    const mojoauth = new MojoAuth("YOUR_MOJOAUTH_API_KEY", {
      language: 'en',
      redirect_url: "https://yourwebsite.com/callback",
      source: [] // No passwordless sources since we do Passkey manually
    });

    // Dummy Passkey login using WebAuthn API
    async function loginWithPasskey() {
      try {
        // Static dummy challenge - in real apps, get from backend per session
        const challengeString = "dummyChallenge123456";
        const publicKeyCredentialRequestOptions = {
          challenge: Uint8Array.from(challengeString, c => c.charCodeAt(0)),
          timeout: 60000,
          rpId: window.location.hostname,
          allowCredentials: [], // Accept any registered credential for this origin
          userVerification: "preferred"
        };

        const assertion = await navigator.credentials.get({ publicKey: publicKeyCredentialRequestOptions });

        console.log("Passkey assertion:", assertion);

        // Normally: send assertion to backend for verification here

        alert("Passkey login successful! Redirecting...");
        window.location.href = "/dashboard";

      } catch (error) {
        console.error("Passkey login failed:", error);
        alert("Passkey login failed or cancelled.");
      }
    }

    document.getElementById('passkeyLoginBtn').addEventListener('click', loginWithPasskey);
  </script>
</body>
</html>

Benefits of Passkeys

Why businesses and users love passkeys authentication

For Businesses


  • Reduced account takeover fraud
  • Lower support costs from password resets
  • Increased conversion rates with smoother login
  • Enhanced security posture
  • Compliance with modern security standards
  • Future-proof authentication method

For Users


  • No passwords to remember or manage
  • Faster login experience
  • Enhanced privacy protection
  • Reduced risk of phishing attacks
  • Works across devices and platforms
  • Biometric convenience and security

Works with every other method on the same API

Offer passkeys alongside magic links, email and phone OTP, social login and One Tap from one integration - with automatic fallback for devices without passkey support.

See every authentication method

Building on the WebAuthn API directly? Read WebAuthn & FIDO2 for Developers.

Frequently Asked Questions

Ready to implement passkeys?

Faster signups, fewer password-reset tickets, phishing-resistant login - on the same API as magic links, OTP and social login.

Call +1-844-321-AUTH