Best Open Source mcp Libraries
A curated list of the most popular GitHub repositories tagged with mcp. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.
#1morluto/rea
Reverse engineer anything with agents, from app behavior down to native binaries.
#2n8n-io/n8n
Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.
#3langgenius/dify
Production-ready platform for agentic workflow development.
#4open-webui/open-webui
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
#5punkpeye/awesome-mcp-servers
A collection of MCP servers.
#6affaan-m/everything-claude-code
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
#7netdata/netdata
The fastest path to AI-powered full stack observability, even for lean teams.
#8infiniflow/ragflow
RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs
#9lobehub/lobehub
The ultimate space for work and life — to find, build, and collaborate with agent teammates that grow with you. We are taking agent harness to the next level — enabling multi-agent collaboration, effortless agent team design, and introducing agents as the unit of work interaction.
#10rohitg00/ai-engineering-from-scratch
Learn AI Engineering! Learn it. Build it. Ship it for others.
#11Mintplex-Labs/anything-llm
The all-in-one AI productivity accelerator. On device and privacy first with no annoying setup or configuration.
#12upstash/context7
Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors
#13sansan0/TrendRadar
⭐AI-driven public opinion & trend monitor with multi-platform aggregation, RSS, and smart alerts.🎯 告别信息过载，你的 AI 舆情监控助手与热点筛选工具！聚合多平台热点 + RSS 订阅，支持关键词精准筛选。AI 智能筛选新闻 + AI 翻译 + AI 分析简报直推手机，也支持接入 MCP 架构，赋能 AI 自然语言对话分析、情感洞察与趋势预测等。支持 Docker ，数据本地/云端自持。集成微信/飞书/钉钉/Telegram/邮件/ntfy/bark/slack 等渠道智能推送。
#14sickn33/agentic-awesome-skills
AAS Core is the local, agent-first control plane for complete catalog discovery, agent-owned selection, stack validation, and planning, backed by 2,600+ agentic skills. Includes CLI, local MCP, catalog, plugins, and Workbench.
#15jeecgboot/JeecgBoot
JeecgBoot 是一款 AI 驱动的低代码开发平台，提供"零代码"与"代码生成"双模式——零代码模式一句话搭建系统，代码生成模式自动输出前后端代码与建表 SQL，生成即可运行。平台内置 AI 聊天助手、AI大模型、知识库、AI流程编排、MCP 与插件体系，兼容主流大模型，支持一句话生成流程图、设计表单、聊天式业务操作，解决 Java 项目 80% 重复工作，高效且不失灵活。
#16ComposioHQ/awesome-claude-skills
A curated list of awesome Claude Skills, resources, and tools for customizing Claude AI workflows
#17mudler/LocalAI
:robot: The free, Open Source alternative to OpenAI, Claude and others. Self-hosted and local-first. Drop-in replacement, running on consumer-grade hardware. No GPU required. Runs gguf, transformers, diffusers and many more. Features: Generate Text, MCP, Audio, Video, Images, Voice Cloning, Distributed, P2P and decentralized inference
#18Kong/kong
🦍 The API and AI Gateway
#19anthropics/claude-plugins-official
Official, Anthropic-managed directory of high quality Claude Code Plugins.
#20zhayujie/chatgpt-on-wechat
CowAgent是基于大模型的超级AI助理，能主动思考和任务规划、访问操作系统和外部资源、创造和执行Skills、拥有长期记忆并不断成长。同时支持飞书、钉钉、企微、QQ、微信公众号、网页等接入，可选择OpenAI/Claude/Gemini/DeepSeek/ Qwen/GLM/Kimi/LinkAI，能处理文本、语音、图片和文件，可快速搭建个人AI助手和企业数字员工。
#21codewhale-hq/Codewhale
Open-source Rust agent engine and terminal client for Codewhale, with provider choice, tools, approvals and receipts.
#22mindsdb/mindsdb
Query Engine for AI Analytics: Build self-reasoning agents across all your live data
#23can1357/oh-my-pi
⌥ Coding agent with the IDE wired in. Built by Stencil Labs.
#24agentscope-ai/QwenPaw
Your Personal AI Assistant; easy to install, deploy on your own machine or on the cloud; supports multiple chat apps with easily extensible capabilities.
#25danny-avila/LibreChat
Enhanced ChatGPT Clone: Features Agents, MCP, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, Code Interpreter, langchain, DALL-E-3, OpenAPI Actions, Functions, Secure Multi-User Auth, Presets, open-source for self-hosting. Active.
#26block/goose
an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM
#27alibaba/nacos
an easy-to-use dynamic service discovery, configuration and service management platform for building AI cloud native applications.
#28PDFMathTranslate/PDFMathTranslate
[EMNLP 2025 Demo] PDF scientific paper translation with preserved formats - 基于 AI 完整保留排版的 PDF 文档全文双语翻译，支持 Google/DeepL/Ollama/OpenAI 等服务，提供 CLI/GUI/MCP/Docker/Zotero
#29patchy631/ai-engineering-hub
In-depth tutorials on LLMs, RAGs and real-world AI agent applications.
#30D4Vinci/Scrapling
🕷️ An adaptive Web Scraping framework that handles everything from a single request to a full-scale crawl!
#31ChromeDevTools/chrome-devtools-mcp
Chrome DevTools for coding agents
#32farion1231/cc-switch
A cross-platform desktop All-in-One assistant tool for Claude Code, Codex, OpenCode, openclaw & Gemini CLI.
#33microsoft/playwright-mcp
Playwright MCP server
#34mastra-ai/mastra
Mastra is the modern TypeScript framework for AI-powered applications and agents.
#35bytedance/UI-TARS-desktop
The Open-Source Multimodal AI Agent Stack: Connecting Cutting-Edge AI Models and Agent Infra
#36QwenLM/qwen-code
An open-source AI coding agent that lives in your terminal.
#37github/github-mcp-server
GitHub's official MCP Server
#38ComposioHQ/composio
Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into action.
#39labring/FastGPT
FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing, RAG retrieval, and visual AI workflow orchestration, letting you easily develop and deploy complex question-answering systems without the need for extensive setup or configuration.
#40deepset-ai/haystack
Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.
#41assafelovic/gpt-researcher
An autonomous agent that conducts deep research on any data using any LLM providers
#42go-kratos/kratos
Your ultimate Go microservices framework for the cloud-native era.
#43AstrBotDevs/AstrBot
Agentic IM Chatbot infrastructure that integrates lots of IM platforms, LLMs, plugins and AI feature, and can be your openclaw alternative. ✨
#44sickn33/antigravity-awesome-skills
The Ultimate Collection of 1000+ Agentic Skills for Claude Code/Antigravity/Cursor. Battle-tested, high-performance skills for AI agents including official skills from Anthropic and Vercel.
#4578/xiaozhi-esp32
An MCP-based chatbot | 一个基于MCP的聊天机器人
#46agentscope-ai/agentscope
Build and run agents you can see, understand and trust.
#47xbtlin/ai-berkshire
AI 时代的伯克希尔：基于 Claude Code / Codex 的价值投资研究框架。巴菲特·芒格·段永平·李录四大师方法论 + 多Agent并行研究。| AI-era Berkshire: a value investing research framework built for Claude Code / Codex. 4 masters' methodologies + multi-agent adversarial analysis.
#48triggerdotdev/trigger.dev
Trigger.dev – build and deploy durable AI agents and workflows
#49udecode/plate
Rich-text editor with AI and shadcn/ui
#50microsoft/mcp-for-beginners
This open-source curriculum introduces the fundamentals of Model Context Protocol (MCP) through real-world, cross-language examples in .NET, Java, TypeScript, JavaScript, Rust and Python. Designed for developers, it focuses on practical techniques for building modular, scalable, and secure AI workflows from session setup to service orchestration.