oauth2

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

Simple OAuth library for Java

Flexible and versatile OAuth 2.0/OpenID Connect stack for .NET

ACI.dev is the open source tool-calling platform that hooks up 600+ tools into any agentic IDE or custom AI agent through direct function calling or a unified MCP server. The birthplace of VibeOps.

基于SpringBoot2.x、SpringCloud和SpringCloudAlibaba并采用前后端分离的企业级微服务多租户系统架构。并引入组件化的思想实现高内聚低耦合，项目代码简洁注释丰富上手容易，适合学习和企业中使用。真正实现了基于RBAC、jwt和oauth2的无状态统一权限认证的解决方案，面向互联网设计同时适合B端和C端用户，支持CI/CD多环境部署，并提供应用管理方便第三方系统接入；同时还集合各种微服务治理功能和监控功能。模块包括:企业级的认证系统、开发平台、应用监控、慢sql监控、统一日志、单点登录、Redis分布式高速缓存、配置中心、分布式任务调度、接口文档、代码生成等等。

基于Spring Boot 2.x的一站式前后端分离快速开发平台XBoot 微信小程序+Uniapp 前端：Vue+iView Admin 后端：Spring Boot 2.x/Spring Security/JWT/JPA+Mybatis-Plus/Redis/Elasticsearch/Activiti 分布式限流/同步锁/验证码/SnowFlake雪花算法ID 动态权限 数据权限 工作流 代码生成 定时任务 社交账号 短信登录 单点登录 OAuth2开放平台 客服机器人 数据大屏 暗黑模式

Easy integration with OAuth 2.0 service providers.

Library for OpenAPI 3 with spring-boot

Swift based OAuth library for iOS

OAuth 2.0 social authentication providers for ASP.NET Core

Full-stack .Net 10 Clean Architecture (Microservices, Modular Monolith, Monolith), Blazor, Angular 22, React 19, Vue 3.5, BFF with YARP, NextJs 16, Domain-Driven Design, CQRS, SOLID, Asp.Net Core Identity Custom Storage, OpenID Connect, EF Core, OpenTelemetry, SignalR, Background Services, Health Checks, Rate Limiting, Clouds (Azure, AWS, GCP), ...

Dart HTTP server framework for building REST APIs. Includes PostgreSQL ORM and OAuth2 provider.

🔐 oauth2 - A Ruby wrapper for the OAuth 2.0, & 2.1 Authorization Frameworks, including OpenID Connect (OIDC)

Testing and evaluation platform to chat, inspect, and debug MCP servers, MCP apps, and ChatGPT apps.

Sync your Outlook and Google calendars

superglue (YC W25) builds integrations and tools from natural language. Get production-grade tools for long tail and enterprise systems.

Oauth2 strategy for Google

Enterprise-ready MCP Gateway & Registry that centralizes AI development tools with secure OAuth authentication, dynamic tool discovery, and unified access for both autonomous AI agents and AI coding assistants. Transform scattered MCP server chaos into governed, auditable tool access with Keycloak/Entra integration.

A simple OIDC / OAuth Identity Provider (IdP) server for your tailnet.

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.