oauth

The easiest, most secure way to use WireGuard and 2FA.

The most comprehensive authentication framework

Authentication for the Web.

Simple, unobtrusive authentication for Node.js.

Apache Casbin: an authorization library that supports access control models like ACL, RBAC, ABAC.

Internet-scale OpenID Certified™ OpenID Connect and OAuth2.1 provider that integrates with your user management through headless APIs. Solve OIDC/OAuth2 user cases over night. Consume as a service on Ory Network or self-host. Trusted by OpenAI and many others for scale and security. Written in Go.

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

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

Build product integrations with AI.

Authentication, simple and clean

Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch.

A spec compliant, secure by default PHP OAuth 2.0 Server

Laravel wrapper around OAuth 1 & OAuth 2 libraries.

Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape.

Simple OAuth library for Java

Open-source auth gateway connecting 1000+ SaaS providers to AI agents through SDK, CLI, MCP, HTTP, and OpenAPI.

Easy integration with OAuth 2.0 service providers.

Token based authentication for Rails JSON APIs. Designed to work with jToker and ng-token-auth.

Laravel Passport provides OAuth2 server support to Laravel.

Swift based OAuth library for iOS