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Modern auth infrastructure for developers

Logto adds multi-tenancy, enterprise SSO, and RBAC to your SaaS or AI apps. All with OIDC and OAuth 2.1 made simple, fast, and developer-friendly.

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Protocols that work

OAuth 2.1, OIDC, SAML. Auth, SSO, RBAC.

Any app, anywhere

From local to cloud. From web to mobile. From one app to many.

No billing surprises

50K MAUs free. Token-based. Pay-as-you-go.

Built for devs

Open-source. Fast integration. Developer-first support.

Millions of identities. Proven reliability.

Trusted by public companies, fast-growing startups, and government agencies.

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For builders who hate rebuilding auth

Tired of duct-taping auth across your SaaS, AI agents, and B2B apps? Logto got you covered.

Sign-in experience

Email and SMS passwordless

Passwordless that feels obvious: one-time codes via email or SMS.

Social sign-in

Social sign-in, done. Google, Apple, Discord, and more.

Password authentication

Still the default. Still what users expect.

Multi-app omni sign-in experience

One sign-in flow. Every app. Looks native. Works everywhere. Zero friction.

Security and control

Multi-factor authentication

MFA in minutes. Passkeys, authenticator apps, backup codes.

Role-based access control

Set rules, control access. RBAC for global and organization-level resources.

Enterprise SSO