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

481–504 of 581

Muvon

octocode

★ 475

Structural code intelligence for AI agents — semantic search, knowledge graphs, and a built-in MCP server in one Rust binary. Give Claude, Cursor, and any MCP client a deep understanding of your codebase.

Rust

oisee

vibing-steampunk

★ 475

vs-punk: ADT to MCP bridge - Vibe code in ABAP / AMDP

syncable-dev

memtrace-public

★ 472

Structural memory for AI coding agents. Bi-temporal graph, MCP-native, zero LLM calls. Cursor · Claude Code · Codex · DeepSeek Harness · Hermes · VS Code · Windsurf.

Python

SetsunaYukiOvO

x64dbg-mcp

★ 471

MCP server plugin for x64dbg debugger - enables AI agents and external tools to control debugging via JSON-RPC 2.0 over HTTP/SSE

C++

askimo-ai

askimo

★ 467

AI Client for chat, RAG, Skills, MCP tools, and agents. Support multiple LLMs (Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM, Gemini, OpenRouter)

Kotlin

alisaitteke

photoshop-mcp

★ 466

MCP server for Adobe Photoshop — 102 tools, recipe workflows, generative AI, standalone web UI. Control Photoshop from Cursor, Claude, or natural language.

TypeScript

aaronsb

obsidian-mcp-plugin

★ 465

High-performance Model Context Protocol (MCP) server for Obsidian that provides AI tools with direct vault access through semantic operations and HTTP transport.

TypeScript

barry-ran

QuickDesk

★ 461

QuickDesk is the first AI-native remote desktop — an open-source, free application with a built-in MCP (Model Context Protocol) Server that lets any AI agent see and control remote computers.

QML

eval-sys

mcpmark

★ 461

MCPMark is a comprehensive, stress-testing MCP benchmark designed to evaluate model and agent capabilities in real-world MCP use.

Python

tugcantopaloglu

godot-mcp

★ 459

MCP server for full Godot 4.x engine control: 157 tools for AI-driven game development (GDScript and C#/.NET). Tested with Godot 4.7.

JavaScript

cablate

mcp-google-map

★ 457

A powerful Model Context Protocol (MCP) server providing comprehensive Google Maps API integration with LLM processing capabilities.

TypeScript

pacifio

cersei

★ 457

The Rust SDK for building coding agents. Tools, streaming, graph, sub-agent orchestration, MCP — as composable functions

Rust

opensolon

solon-ai

★ 455

Java AI application development framework (supports LLM-tool,skill; RAG; MCP; Agent-ReAct,Team-Agent). Compatible with java8 ~ java26. It can also be embedded in SpringBoot, jFinal, Vert.x, Quarkus, and other frameworks.

Java

awslabs

iam-policy-autopilot

★ 454

IAM Policy Autopilot is an open source static code analysis tool that helps you quickly create baseline AWS IAM policies that you can refine as your application evolves. This tool is available as a command-line utility and MCP server for use within AI coding assistants for quickly building IAM policies.

Rust

AnkleBreaker-Studio

unity-mcp-server

★ 451

Unity MCP Server — 268 tools for AI-assisted game development. Connect Claude, Cursor, or any MCP client to Unity Editor & Unity Hub. Scene management, GameObjects, components, builds, profiling, Shader Graph, Amplify, terrain, physics, NavMesh, animation, MPPM multiplayer & more. Free & open source by AnkleBreaker Studio.

JavaScript

zhoushoujianwork

easyeda-agent

★ 451

嘉立创EDA专业版(EasyEDA Pro)自动化：给 AI harness 装上画板的「手」—— 一套 typed 原理图/PCB 动作，CLI / Agent Skill / stdio MCP 三形态融合接入。承接嘉立创「不以卖板赚钱，以培养中国工程师为己任」 | EasyEDA Pro automation: the hands of your AI harness — typed schematic/PCB actions via CLI, Agent Skill and stdio MCP.

badchars

darknet-mcp-server

★ 449

66-tool MCP server for dark web intelligence — breach data, ransomware tracking, Tor .onion access, malware analysis, blockchain intel, exploit search, stealer logs

TypeScript

juyterman1000

entroly

★ 445

Cut AI context cost without trusting the compressor. Every reduction is reversible, byte-exact recoverable, and carries an auditable receipt. Local-first, works through proxy, MCP, SDK, or agent wrapper.

Python

leancodepl

marionette_mcp

★ 443

MCP server enabling AI agents to interact with Flutter apps at runtime - let them inspect widgets, simulate taps, enter text, scroll, and take screenshots.

Dart

ThinkfleetAI

memmesh

★ 441

Persistent, self-improving memory for AI agents. Local-first Rust memory engine with MCP support.

Rust

jabrena

plinth

★ 439

Plinth is an AI-native engineering toolkit for modern Java enterprise SDLC, built around reusable Commands, Agents, Skills, and MCP Servers.

Java

ryaker

outlook-mcp

★ 438

MCP server for Claude to access Outlook data via Microsoft Graph API

JavaScript

markrai

scrumboy

★ 436

Self-hosted project management, featuring customizable project boards, cross-project workload and flow analytics, calendar-aware planning, a sticky-note wall, portable imports/backups, realtime email notifications, and a MCP/Agent automation layer.

minthcm

★ 436

Open-source HCM system for managing HR processes with AI agents. Full data ownership, MCP/A2A-native, no vendor lock-in.

PHP