Discover the most starred and trending open source tools tagged with #authentication.
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 Open Source Firebase Alternative with GraphQL.
Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape.
Kanidm: A simple, secure, and fast identity management platform
Rails authentication with email & password.
Amazon Bedrock Agentcore accelerates AI agents into production with the scale, reliability, and security, critical to real-world deployment.
Security engine for Java (authentication, authorization, multi frameworks): OpenID Connect, SAML2, CAS, OAuth, LDAP, JWT...
The missing reverse proxy for ssh scp
Firebase Admin Go SDK
Auth0 SDK for React Single Page Applications (SPA)
Batteries-included backend that works with any stack.
Two-Factor Authentication for WordPress.
OpenID/Connect, OAuth2, WS-Federation and SAML 2.0 server based on Duende IdentityServer and ITFoxtec Identity SAML 2.0 with its admin UI
Firebase Admin Java SDK
ThunderID 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.
An alternative to Windows Hello/Howdy
S3 Reverse Proxy with GET, PUT and DELETE methods and authentication (OpenID Connect and Basic Auth)
FastAPI plugin to enable SSO to most common providers (such as Facebook login, Google login and login via Microsoft Office 365 Account)
A filled with self-loathing implementation of Basic Authentication, and Certificate Authentication to make me feel like a real security person, all for for ASP.NET Core
Authentication and Authorization for CodeIgniter 4