Discover the best Authentication open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.
An open-source Agent-first Identity and Access Management (IAM) /LLM MCP & agent gateway and auth server with web UI supporting OpenClaw, MCP, OAuth, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA, Face ID, Google Workspace, Azure AD
The Single Sign-On Multi-Factor portal for web apps. OpenID Certified™ and Post-Quantum Cryptography Ready.
The most comprehensive authentication framework
Amazon Bedrock Agentcore accelerates AI agents into production with the scale, reliability, and security, critical to real-world deployment.
Light LDAP implementation
Kanidm: A simple, secure, and fast identity management platform
FreeRADIUS - A multi-protocol policy server.
Facial authentication for Linux
Single Sign-On Identity & Access Management via OpenID Connect, OAuth 2, PAM
Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch.
ThunderID, an LF Decentralized Trust project, is a high-performance, open-source identity stack designed for developers to secure and manage access for humans, AI agents, and machines through fully composable identity flows.
Real-time messaging library for Go. The simplest way to add feature-rich and scalable WebSocket support to your application. The core of Centrifugo server.
🔐 Authentication, Authorization, and Accounting (AAA) App and Plugin for Caddy v2. 💎 Implements Form-Based, Basic, Local, LDAP, OpenID Connect, OAuth 2.0 (Github, Google, Facebook, Okta, etc.), SAML Authentication. MFA/2FA with App Authenticators and Yubico. 💎 Authorization with JWT/PASETO tokens. 🔐
Open source Auth0/Keycloak alternative. Passkeys, SSO, MFA, passwordless, biometric login. Self-hosted or cloud. Enterprise-ready for SaaS & mobile apps
Apereo CAS - Identity & Single Sign On for all earthlings and beyond.
Highflame ZeroID: Autonomous Agent Identity Management System (AAIMS)
Official JavaScript repository for Clerk authentication
Drop-in auth endpoints for ASP.NET Core: JWT, cookies, email codes and 2FA for your SPA or API, built on ASP.NET Core Identity.
Firebase SDK for Apple App Development
Go client SDK for Casdoor