FIVUCSAS Verify

Hosted login and embeddable auth widget for FIVUCSAS.

Authenticate your users with face, voice, fingerprint, NFC ID, passkeys, TOTP, and OTP — without writing biometric or session code. Drop-in OAuth 2.0 / OpenID Connect for web, mobile, and desktop apps.

Try hosted login Learn about FIVUCSAS Dashboard sign-in

Hosted login (recommended)

Redirect users to verify.fivucsas.com/login, get a code back, exchange for tokens. Standard OAuth 2.0 + PKCE.

Embeddable widget

Iframe-friendly step-up MFA for sensitive actions. Camera, microphone, and WebAuthn delegated to the widget origin.

Multi-factor by default

Tenants configure which factors are required per flow. Backend enforces the policy — clients can't downgrade.

10 supported auth methods

PASSWORD EMAIL_OTP SMS_OTP TOTP FACE VOICE FINGERPRINT HARDWARE_KEY QR_CODE NFC_DOCUMENT

Integrate in three lines

// Web (loadFivucsasAuth from https://verify.fivucsas.com/fivucsas-auth.esm.js)
const auth = await loadFivucsasAuth({ apiBaseUrl: "https://api.fivucsas.com" });
await auth.loginRedirect({ clientId: "YOUR_CLIENT_ID", redirectUri: "https://your-app.com/callback" });
// User lands back at redirectUri with ?code=… — exchange at /oauth2/token.