Add modern auth to your existing app without rebuilding it

Your team spent years building the identity stack you have. Authsignal adds passkeys, adaptive MFA, and step-up authentication on top of it. No migration, no re-platform, no user database changes. Go live in days.

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Drop-in authentication for any identity stack

Authsignal integrates with your existing identity provider, Cognito, Azure AD B2C, Auth0, Keycloak, Duende, or custom, to add modern authentication capabilities without replacing what you have. Target specific flows: step-up at checkout, passkeys at login, re-authentication for sensitive actions. Your IdP handles users; Authsignal handles the hard stuff.

  • Works with any identity provider: no migration, no re-platforming
  • Add authentication at specific points in the journey, not everywhere at once
  • Pre-built UI components and SDKs for 10+ languages: go live in days

<6 weeks

layered intelligent step-up authentication on top of Duende IdentityServer. Working prototype in days, zero migration required.

8 weeks

to deploy phishing-resistant MFA across 3 countries, on top of Azure AD B2C, with no reported issues.

What you get without touching your identity provider

Works with any identity provider

Integrate with Cognito, Keycloak, Azure AD B2C, Auth0, Duende, WSO2, or custom auth systems. Authsignal complements your existing identity stack instead of replacing it.

Target specific flows

Add authentication controls only where needed: payments, profile changes, admin actions, sensitive operations. No forced changes to everyday logins.

Pre-built UI and SDKs

Drop-in passkey SDK and pre-built UI components support 10+ languages. White-label to match your design system. Most teams have a working integration in 1-3 days.

Progressive rollout

Start with a small group or a single flow. Monitor adoption and conversion. Expand when ready. Authsignal's rules engine lets you target specific user segments, geographies, or risk levels.

Frequently asked questions

Do I need to migrate my users or rebuild my authentication system?

No. Authsignal integrates with your existing user database and authentication flow. Users keep their current credentials while you layer in passkeys and MFA. No forced migration, no data export, no changes to your IdP setup.

How long does it take to integrate?

Most teams have a working integration in 1-3 days using pre-built UI components and SDKs. For custom implementations or complex workflows, plan for 1-2 weeks.

Can I test with a small group before full rollout?

Yes, this is the recommended approach. Authsignal's rules engine lets you target specific user segments, email domains, or geographic regions. Start with internal users or beta testers, monitor adoption and feedback, then expand.

What happens to users who can't or won't adopt passkeys?

Nothing changes for them. Authsignal supports progressive enhancement. Users continue with their existing methods while others adopt passkeys. You control the rollout strategy and timeline.

See how Authsignal drops into your existing stack

Talk to an expertStart free trial