logto

Overview

Logto is a modern open-source auth solution built on OIDC and OAuth 2.1. It provides multi-tenancy, enterprise SSO, RBAC, and customizable sign-in flows. Designed for scaling SaaS, AI, and agent-based platforms.

README Preview

\n  \n    \n      \n      \n      \n    \n  \n\n\n[](https://discord.gg/vRvwuwgpVX)\n[](https://github.com/logto-io/logto/actions?query=branch%3Amaster)\n[](https://github.com/logto-io/logto/releases)\n[](https://app.codecov.io/gh/logto-io/logto)\n[](https://cloud.logto.io/?sign_up=true&utm_source=github&utm_medium=repo_logto)\n[](https://gitpod.io/#https://github.com/logto-io/demo)\n[](https://render.com/deploy?repo=https://github.com/logto-io/logto)\n\n# Logto\n\n**Logto is the modern, open-source auth infrastructure for SaaS and AI apps.**\n\nIt 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.\n\n\n  website •\n  cloud •\n  docs •\n  api •\n  blog •\n  auth wiki •\n  newsletter\n\n\n\n\n## Why Logto?\n\nBuilt for teams scaling SaaS, AI, and agent-based platforms without the usual auth headaches.\n\nWith Logto, you get:\n\n- **Multi-tenancy, enterprise SSO, and RBAC**: ready to use, no workarounds.\n- **Pre-built sign-in flows**, customizable UIs, and SDKs for 30+ frameworks.\n- **Full support for OIDC, OAuth 2.1, and SAML** without the protocol pain.\n- **Works out-of-the-box for Model Context Protocol and agent-based AI architectures**.\n\n[🗺️ See all features →](https://docs.logto.io/?ref=readme)\n\n## Get started\n\nPick your path:\n\n- [**Logto Cloud**](https://cloud.logto.io/?sign_up=true&ref=readme): The fastest way to try Logto. Fully managed, zero setup.\n- [**Launch Logto in GitPod**](https://gitpod.io/#https://github.com/logto-io/demo): Start Logto OSS in seconds.\n\n  Wait for the message `App is running at https://3002-...gitpod.io`, then click the URL starting with `https://3002-` to continue.\n\n- **Local development:**  \n\n  ```bash\n  # Using Docker Compose(requires Docker Desktop)\n  curl -fsSL https://raw.githubusercontent.com/logto-io/logto/HEAD/docker-compose.yml | \\n  docker compose -p logto -f - up\n  \n  # Using Node.js (requires PostgreSQL)\n