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Documentation
SDKs
API reference
Changelog
Documentation
SDKs
API reference
Changelog

Welcome to Authsignal Docs

Authsignal is a drop-in solution that adds modern authentication to your app with minimal coding. Quickly implement passkeys, context-aware MFA, and passwordless login options like biometrics, push notifications, OTP, and TOTP—all working seamlessly with your existing identity stack.

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Implementation options

Authsignal offers two main implementation approaches to suit your development needs:

Pre-built UI

Hosted components with fast setup and customizable styling to match your brand.

Custom UI

Complete control over design using our client SDKs for web and mobile platforms.

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Features

MFA

Add strong security with multiple authentication factors for your users.

Adaptive MFA

Apply MFA intelligently based on user behavior and risk signals.

Passwordless Login

Eliminate passwords while enhancing security and user experience.

Passkeys

Enable FIDO2 passkeys for phishing-resistant authentication.

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Identity provider integrations

AWS Cognito

Extend Cognito with passkeys and advanced authentication options.

Microsoft Azure AD B2C

Integrate with Azure B2C using Technical Profiles and OpenID Connect.

Duende IdentityServer

Add Authsignal to IdentityServer for custom authentication workflows.

Auth0

Learn how to use our Auth0 integration to implement MFA with just a few lines of code.

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