Add passkeys and adaptive MFA to your Ruby on Rails app.

Authsignal integrates with your Rails app via the authsignal-ruby gem and @authsignal/browser SDK. Works with Devise and Warden out of the box. Ship phishing-resistant passkeys and adaptive MFA. Live in weeks, not months.

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Delivering world-class results for:

Fastest way to integrate MFA and passkeys with Ruby on Rails

Add passkeys and MFA to your Rails app with minimal engineering lift

Works with Devise and Warden, just drop into your existing sign-in and step-up flows

Phishing-resistant authentication live in weeks, backed by a no-code rules engine

From daunting rebuild to shipped in weeks

Drop-in

Rebuilding authentication in-house can be daunting.

The cost and complexity shouldn't hold your business back.

SECURITY

Stay focused on what you do best. Trust Authsignal for authentication.

Enable passkeys and MFA in weeks, not months — with a visual rules builder and secure user journeys out of the box.

JOURNEY

Authentication across the entire customer journey

MFA at sign-in. Step-up at withdrawal. Verification at account recovery. Authsignal orchestrates authentication at every sensitive action in your Rails app — from a single integration.

3 ways to integrate with Ruby on Rails

Get started for free with up to 2000 monthly active users.

“Implementing FIDO authentication through Authsignal has been a game-changer for our members’ digital experience. It’s secure, seamless and sets a new standard for trust in online banking.”

Herb Wulff

Treasury and Agency

Treasury and Agency Banking Manager

Partnering with Authsignal is simple and powerful

Start today, no cost

Enable passkeys and MFA in weeks, not months — with a visual rules builder and secure user journeys out of the box.

Quick & easy integration

Integration made easy: Follow our step-by-step guides to get up and running without friction.

Expert support anytime

Access our exclusive private Slack channel for tailored advice and real-time support from our team.

Flexible pricing options

Start for free. Drop-in authentication for production-grade security and compliance, without replacing your existing identity stack.

FAQ

Do I need to replace Devise to use Authsignal?

No. Authsignal integrates with your existing Devise/Warden setup via a Warden after_authentication hook. Your user model, session management, and existing authentication logic all stay in place. Authsignal adds passkeys and MFA on top.

Can I use Authsignal for step-up authentication on sensitive actions, not just login?

Yes. Authsignal is designed to drop into any part of your user journey. The Rails integration guide includes a withdrawal example showing how to add step-up MFA to sensitive actions using the authsignal-ruby gem and Stimulus.js.

Why choose Authsignal?

Deploy passkeys and MFA in weeks instead of months. Flexible integration options including pre-built UI, UI components, or headless SDKs. A visual no-code rules engine for adaptive authentication policies. Real-time developer support, comprehensive documentation, and step-by-step integration guides. SOC 2 Type 2, ISO 27001, and FIDO Alliance certified.

What does it cost to integrate with Authsignal?

You can start integrating on our free tier immediately — up to 1,000 monthly active users at no cost. For production deployments, plans start at $1,099/month. Enterprise pricing is available for larger deployments. See our pricing page for details.

Which MFA methods does Authsignal support?

Passkeys (FIDO2/WebAuthn), biometrics, SMS OTP, email OTP, WhatsApp OTP, push notifications, authenticator apps (TOTP), and magic links. All methods are available from a single integration and managed via the no-code rules engine.

What programming languages and SDKs are supported?

Server SDKs for Node.js, Python, Ruby, Java, C#, PHP, and Go. Client SDKs for Web (JavaScript/TypeScript), React Native, iOS (Swift), and Android (Kotlin). Plus a REST API for any language.