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Logto

Logto is the modern, open-source auth infrastructure for SaaS and AI apps.

It takes the pain out of OIDC and OAuth 2.1 and makes it easy to build secure, production-ready auth with multi-tenancy, enterprise SSO, and RBAC.

<p align="center"> <a href="https://logto.io/">website</a> • <a href="https://cloud.logto.io/">cloud</a> • <a href="https://docs.logto.io">docs</a> • <a href="https://openapi.logto.io/">api</a> • <a href="https://blog.logto.io/">blog</a> • <a href="https://auth-wiki.logto.io/">auth wiki</a> • <a href="https://logto.io/subscribe">newsletter</a> </p>

Why Logto?

Built for teams scaling SaaS, AI, and agent-based platforms without the usual auth headaches.

With Logto, you get:

• Multi-tenancy, enterprise SSO, and RBAC: ready to use, no workarounds.
• Pre-built sign-in flows, customizable UIs, and SDKs for 30+ frameworks.
• Full support for OIDC, OAuth 2.1, and SAML without the protocol pain.
• Works out-of-the-box for Model Context Protocol and agent-based AI architectures.

🗺️ See all features →

Get started

Pick your path:

• Logto Cloud: The fastest way to try Logto. Fully managed, zero setup.

• Launch Logto in GitPod: Start Logto OSS in seconds.

  Wait for the message App is running at https://3002-...gitpod.io, then click the URL starting with https://3002- to continue.

• Local development:

  # Using Docker Compose(requires Docker Desktop)
  curl -fsSL https://raw.githubusercontent.com/logto-io/logto/HEAD/docker-compose.yml | \
  docker compose -p logto -f - up
  
  # Using Node.js (requires PostgreSQL)
  npm init @logto
  

📚 Full OSS installation guide →

Integrate anywhere

Logto supports all your apps, APIs, and services with industry-standard protocols.

• SDKs for 30+ frameworks: React, Next.js, Angular, Vue, Flutter, Go, Python, and more.
• Connect to any IdP: Google, Facebook, Azure AD, Okta, and more.
• Flexible integration: SPAs, web apps, mobile apps, APIs, M2M, CLI tools.
• Ready for Model Context Protocol and agent-based architectures.

🚀 Explore quick starts →

🔌 See all connectors →

Showcase

Developer-first SDKs: Install in minutes with clear guides.

User-friendly auth flows: Sign-up, sign-in, social login, Google One Tap, MFA, SSO.

Multi-tenancy & organizations: Organization RBAC, member invites, just-in-time provisioning, and more.

Support Logto

If you find Logto helpful, here's how you can support us:

• ⭐ Star this repo to show your support!
• 💬 Join our Discord for live discussions.
• 📢 Share Logto on Twitter, LinkedIn, Reddit, Telegram, WhatsApp.
• 🏆 Write a review or tutorial on dev.to, Medium, G2 or your blog.
• 💬 Share your use case with us and get featured on the Logto website.
• 🙋 Open an issue to report bugs or suggest features.
• 💻 Contribute to Logto - we'd love your help! Check out Logto awesome of community-contributed resources.

Licensing

MPL-2.0.

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