AI channel
MCP servers

Open-source MCP servers

MCP, the Model Context Protocol, is an open standard for connecting AI assistants to outside tools and data. An MCP server exposes something, such as a database, a browser, a GitHub account or a folder of files, as tools the assistant can call. Clients such as Claude Desktop, Cursor and VS Code load these servers.

How to choose

Check what a server can reach before you install it. One that can run shell commands or write files has all the power of the account it runs under, so prefer servers that ask for the narrowest access: read-only tokens and a single folder. Also check whether it runs locally over stdio or as a remote service you would have to trust.

Most-starred projects

601–624 of 634
PatrikFehrenbach

h1-brain

★ 355

MCP server that connects AI assistants to HackerOne for bug bounty hunting

Python
JiaboLi-GitHub

renderdoc-mcp

★ 352

An MCP server for RenderDoc: Empowering AI assistants to analyze GPU frame captures and debug graphics pipelines.

C++
GoogleCloudPlatform

cymbal-air-toolbox-demo

★ 350

Demo of a customer service agent (Cymbal Air) using LangGraph, Tools, and RAG to interact with Google Cloud Databases via MCP Toolbox.

Python
★ 349

20 章中文 AI Agent 架构实战教程,配套可运行 TypeScript 代码,覆盖工具、权限、记忆、多 Agent、Worktree 与 MCP。

TypeScript
mcp-servers-for-revit

mcp-servers-for-revit

★ 348

🔥💧🤖 Sparx fork of the mcp-servers-for-revit/revit-mcp project

C#

A JupyterLab extension supporting Claude Code, Copilot, Ollama, and OpenAI-compatible LLMs, with MCP, skills, plugins, and notebook agents.

Python
IMNMV

ClaudeR

★ 346

Connect RStudio to Claude Code, Codex, Gemini, and other LLM agents via MCP. Multi-agent orchestration, automated manuscript auditing, and zero-config setup with uvx

Python
★ 344

Control and query Home Assistant from Claude and other LLMs — a Model Context Protocol (MCP) server.

Python
gojue

moling

★ 337

MoLing is a computer-use and browser-use based MCP server. It is a locally deployed, dependency-free office AI assistant.

Go
CharTyr

STS2-Agent

★ 333

杀戮尖塔2的MOD,将杀戮尖塔2的游戏状态与操作暴露为本地 HTTP API 包装成 MCP Server,供支持 MCP 的AI客户端直接调用

C#
mattt

emcee

★ 333

MCP generator for OpenAPIs 🫳🎤💥

Go
sunriseapps

imagesorcery-mcp

★ 333

An MCP server providing tools for image processing operations

Python
thecodacus

understory

★ 330

understory — memory that grows. Self-wiring, plain-markdown memory for AI agents (MCP + local models + a living graph).

TypeScript
isuzu-shiranui

UnityMCP

★ 329

Drive the Unity Editor from an AI agent or the terminal. The Editor serves MCP itself over HTTP, so there is no second process to run, and the isuzu-unity-cli command needs no Node or .NET runtime.

C#
★ 328

mcp store manager, add & syncs MCP server configurations across clients like Claude code, Cursor💡mcphub

TypeScript
aa0101181514

tw-legal-rag

★ 327

台灣法律 MCP 伺服器 + CLI(免費、免註冊、免 API key):2,250 萬筆裁判書、行政函釋、憲法法庭裁判,附引用查核。Free Taiwan legal MCP server for Claude/ChatGPT/Codex — bring your own LLM, retrieval-only.

Python
JordyZomer

lemmalog

★ 326

A Datalog engine for LLM agent memory: stratified rules, provenance-tracked facts, incremental derivation, and an MCP server that lets your harness use it as a shared brain.

Rust
Brain0-ai

brain0

★ 322

The black box for AI-written code. Passive decision graph linking every commit to the agent prompts behind it: drift detection, DLP audit of what agents read, evidence-driven risk, MCP memory for coding agents, signed provenance attestations. One command, offline by default.

Rust
pmbstyle

Alice

★ 321

Alice is a voice-first desktop AI assistant application built with Vue.js, Vite, and Electron. Advanced memory system, function calling, MCP support, optional fully local use, and more.

TypeScript
tumourlove

monolith

★ 321

MCP plugin for Unreal Engine 5.7 & 5.8 — gives AI assistants full read/write access to Blueprints, Materials, Niagara, Animation, Mesh, AI, GAS, Logic Driver, ComboGraph, UI, Audio, plus Reflection Intelligence (decision / risk / C++ reflection / replication queries). 1,400+ actions across 25+ namespaces. Native C++, zero Python dependency.

C++
nakasyou

local-mcp

★ 317

Local file editing with MCP

Rust
★ 317

Free crypto news API - real-time aggregator for Bitcoin, Ethereum, DeFi, Solana & altcoins. No API key required. RSS/Atom feeds, JSON REST API, historical archive with market context, embeddable widgets, ChatGPT plugin, Claude MCP server, SDKs (Python, TypeScript, Go, React, PHP). AI/LLM ready. Vibe coding friendly. Open source.

TypeScript
buildswithpaul

Frappe_Assistant_Core

★ 316

Infrastructure that connects LLMs to ERPNext. Frappe Assistant Core works with the Model Context Protocol (MCP) to expose ERPNext functionality to any compatible Language Model

Python
heizaheiza

Charles-mcp

★ 316

Charles Proxy MCP server for AI agents with live capture, structured traffic analysis, and agent-friendly tool contracts

Python