Open-source mcp software
1200 open-source libraries, tools and applications tagged mcp, ranked by how closely mcp is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
1200 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| AI-Builder-Club/skills A Claude Code plugin marketplace distributing skills for building 'loop engineers' — autonomous agents that trigger themselves, do work, ve… | 56 | 1283 | active |
| wong2/weixin-agent-sdk A TypeScript SDK that bridges any AI agent backend into WeChat via a simple Agent interface, with QR-code login and a message loop. It also… | 48 | 1276 | active |
| iOS Simulator Skill for Claude Code A Claude Code skill (also installable as a plugin) providing 27 Python scripts for building, testing, and automating iOS apps via xcodebuil… | 83 | 1271 | active |
| Open Liberty Open Liberty is a lightweight, composable Java application server runtime for building cloud-native microservices with MicroProfile and Jak… | 96 | 1267 | active |
| NVIDIA-NeMo/Gym NeMo Gym is a Python library from NVIDIA for evaluating and improving LLM models and agents using environments. It provides infrastructure … | 81 | 1264 | active |
| SimonSchubert/Kai Kai 9000 is an open-source, cross-platform AI assistant built with Kotlin Multiplatform that runs on Android, iOS, Windows, Mac, Linux, and… | 81 | 1264 | active |
| mrwadams/attackgen AttackGen is a Streamlit-based cybersecurity tool that uses large language models to generate tailored incident response testing scenarios … | 91 | 1244 | active |
| Avijit07x/animateicons AnimateIcons is a library of 542 animated SVG icons for React, built on motion/react with path-level animations triggered by hover, focus, … | 63 | 1244 | active |
| Taewan-P/gpt_mobile GPT Mobile is an Android chat application that lets users talk to multiple LLM providers (OpenAI, Anthropic, Google Gemini, Groq, Ollama) s… | 96 | 1240 | active |
| thClaws/thClaws thClaws is an open-source AI agent harness written in native Rust that ships as a single binary offering a desktop GUI, CLI, headless, and … | 78 | 1239 | active |
| mem9-ai/mem9 mem9 is a persistent memory layer for AI agents, providing cross-session and cross-machine memory, shared memory for multi-agent workflows,… | 60 | 1227 | active |
| GoogleCloudPlatform/vertex-ai-creative-studio GenMedia Creative Studio is a web application showcasing Google Cloud's generative media APIs including Gemini Image (Nano Banana), Veo vid… | 87 | 1223 | active |
| agent-vision-toolkit A Python toolkit of vision CLI tools plus an agent skill that gives text-only LLM agents (like DeepSeek) image understanding capabilities, … | 76 | 1216 | active |
| ZHangZHengEric/Sage Sage is a Python-based multi-agent framework and platform for planning, executing, and delivering complex tasks with LLM-powered agents. It… | 87 | 1214 | active |
| Symfony AI Symfony AI is a set of PHP components and Symfony bundles that integrate AI capabilities into PHP applications, including a unified interfa… | 85 | 1214 | active |
| SalesforceAIResearch/enterprise-deep-research Enterprise Deep Research (EDR) is a multi-agent deep research system from Salesforce AI Research that combines a master planning agent, spe… | 52 | 1212 | active |
| jieyefriic/rp-engine A YAML-native agent workflow execution engine written in Rust that parses declarative workflow files describing nodes, edges, prompts, data… | 61 | 1209 | active |
| clacky-ai/openclacky OpenClacky is an open-source (MIT) AI agent platform written in Ruby that runs locally, offering a CLI and Web UI for completing tasks via … | 80 | 1207 | active |
| FranciscoMoretti/chat-js ChatJS is an open-source, production-ready AI chat application built with Next.js and TypeScript, offering authentication, 120+ models via … | 85 | 1200 | active |
| JackHopkins/factorio-learning-environment An open-source framework for developing and evaluating LLM agents in the game of Factorio, providing an open-ended, non-saturating benchmar… | 83 | 1199 | active |
| databuddy-analytics/Databuddy Databuddy is a privacy-first, cookieless web analytics platform built with Next.js and TypeScript that combines page analytics, error track… | 77 | 1198 | active |
| TrafficGuard/typedai TypedAI is a TypeScript-first platform for building and running autonomous AI agents, LLM workflows, chatbots, and AI software engineering … | 50 | 1197 | active |
| polterguy/magic Magic Cloud is a self-hosted, MIT-licensed AI app builder platform that turns plain-English prompts into full-stack applications — database… | 93 | 1194 | active |
| RubberDuck-com/rubberduck-use-case-playground A hands-on training playground for RubberDuck MCP, consisting of a local hub dashboard and a deliberately vulnerable restaurant demo app (R… | 56 | 1194 | active |
| keinsaasforever/better-chatbot Keinsaas Navigator (formerly Better Chatbot) is an open-source, self-hostable AI chatbot workspace built with Next.js and the Vercel AI SDK… | 66 | 1190 | active |
| pashov/skills A collection of AI-powered Solidity security skills built by Pashov Audit Group, packaged for use with AI coding assistants like Claude Cod… | 76 | 1189 | active |
| HiveNexus/HiveChat HiveChat is a self-hostable AI chat application designed for small and medium-sized teams, with multi-user management, group-based permissi… | 36 | 1185 | active |
| daangn/seed-design SEED is Daangn's unified design system, providing design tokens, styled React components, and cross-platform styles (React, iOS, Android, L… | 95 | 1183 | active |
| sheshbabu/zen Zen is a self-hosted note-taking application distributed as a single Go binary or Docker Compose deployment, storing notes as standard Mark… | 66 | 1183 | active |
| fcakyon/claude-codex-settings A curated collection of battle-tested configuration files, plugins, skills, hooks, and subagents for AI coding tools like Claude Code, Open… | 85 | 1176 | active |
| i-am-bee/agentstack Agent Stack is open-source infrastructure (hosted by the Linux Foundation) for turning AI agents into running HTTP services, built on the A… | 78 | 1172 | active |
| Ricky-7-Yan/intelligent-audit-system AuditPilot is an enterprise AI agent workbench for audit delivery, combining evidence-grounded agentic RAG, governed tool execution, evalua… | 57 | 1171 | active |
| mateaix/mateclaw MateClaw is a self-hosted, team-oriented AI agent platform ('second brain') built on Spring Boot and Spring AI Alibaba, shipped as a single… | 81 | 1170 | active |
| parcadei/llm-tldr A Python CLI tool and daemon that indexes codebases into a 5-layer analysis stack (AST, call graph, control flow, data flow, program depend… | 10 | 1169 | active |
| heymrun/heym Heym is an AI-native, low-code workflow automation platform with a visual drag-and-drop editor for building agentic systems. It provides LL… | 78 | 1168 | active |
| davis7dotsh/better-context btca (better-context) is a codebase research tool that lets developers and AI coding agents ask questions about libraries and frameworks by… | 47 | 1158 | active |
| hexabot-ai/Hexabot Hexabot is a self-hosted, fair-core AI workflow automation platform that combines YAML-defined agentic workflows, actions, memory, RAG, and… | 64 | 1151 | active |
| KroMiose/nekro-agent NekroAgent is a cross-platform AI agent framework for multi-user chat scenarios that generates and executes code in sandboxed containers, w… | 83 | 1149 | active |
| LiuMengxuan04/MiniCode MiniCode is a lightweight terminal-based AI coding assistant that implements a Claude Code-like agent loop with tool calling, diff review, … | 59 | 1147 | active |
| agentbay-ai/wuying-agentbay-sdk Multi-language SDK (Python, TypeScript, Go, Java) for Wuying AgentBay, Alibaba Cloud's cloud sandbox platform built for AI agents. It lets … | 70 | 1146 | active |
| chaxiu/munk-ai Munk AI (the open-source Munk Test CLI) is a local-first, self-improving AI testing engine that turns natural-language intent into product-… | 78 | 1145 | active |
| MoizIbnYousaf/Ai-Agent-Skills A universal skill installer and package manager for AI coding agents, distributable via npx and supporting 12+ agent runtimes like Claude C… | 73 | 1144 | active |
| massgen/MassGen MassGen is an open-source multi-agent scaling system that runs in the terminal, orchestrating multiple frontier LLM agents to work on the s… | 66 | 1142 | active |
| muapi CLI muapi-cli and its Generative Media Skills provide a schema-driven CLI, skill library, and MCP server that let AI agents (Claude Code, Curso… | 90 | 1141 | active |
| suyiiyii/AutoGLM-GUI A modern web GUI for the AutoGLM phone agent that lets AI control Android devices via ADB and scrcpy, with chat-based task management, mult… | 79 | 1130 | active |
| ATH-MaaS/Pixelle-MCP Pixelle MCP is an open-source omnimodal AIGC framework that converts ComfyUI workflows (local or RunningHub cloud) into MCP tools with zero… | 41 | 1125 | active |
| localgpt-app/localgpt LocalGPT is a local-only AI assistant built in Rust that ships as a single binary with a CLI, desktop GUI, embedded web UI, HTTP API, and M… | 61 | 1124 | active |
| Onelevenvy/flock Flock is a cross-platform desktop multi-agent harness built with Rust, Tauri, and React, powered by the langgraph-rust engine. It provides … | 77 | 1113 | active |
| AgentsMesh/Pivo Pivo is a task-focused desktop programming environment built with Tauri, React, and Rust that combines Git project management, kanban task … | 33 | 1105 | active |
| raindrop-ai/workshop Raindrop Workshop is an open-source local debugger for AI agents that streams live traces of tokens, tool calls, and decisions into a brows… | 75 | 1099 | active |
| wenge-research/x-agent X-Agent (智川) is an open-source, self-hosted enterprise agent development platform by Wenge that lets users build AI applications with zero … | 32 | 1090 | active |
| hahwul/jwt-hack jwt-hack is a fast, single-binary Rust CLI toolkit for testing, analyzing, and attacking JSON Web Tokens (JWT) and JWE tokens. It supports … | 88 | 1089 | active |
| joaoh82/rust_sqlite SQLRite is an embedded SQL database engine written from scratch in Rust, modeled on SQLite with a paged single-file format, B-tree storage,… | 87 | 1089 | active |
| Spade-sec/First A WeChat mini-program security debugging tool (fork/extension of WMPFDebugger) that uses Frida injection and Chrome DevTools Protocol bridg… | 68 | 1089 | active |
| andrepimenta/claude-code-chat A VS Code extension that provides a graphical chat interface for Claude Code, replacing terminal-based interaction with a visual UI inside … | 79 | 1085 | active |
| tigicion/dao-code Dao Code is an open-source terminal-native AI coding agent written in TypeScript, targeting DeepSeek V4 with 1M context and Claude Code-com… | 75 | 1084 | active |
| HG-ha/ICP_Query A self-hosted service (Python and Rust implementations) that queries China MIIT ICP filing records for domains, apps, mini-programs, quick … | 89 | 1083 | active |
| FalkorDB/QueryWeaver QueryWeaver is an open-source Text2SQL tool that converts plain-English questions into SQL queries using graph-powered schema understanding… | 82 | 1082 | active |
| yize/xswitch XSwitch is a Chrome browser extension for redirecting and forwarding request URLs using browser-native APIs, with rule groups, CORS support… | 77 | 1077 | active |
| vstorm-co/pydantic-deepagents Pydantic Deep Agents is an open-source, self-hosted terminal AI assistant (a Claude Code alternative) plus the Python framework behind it, … | 79 | 1076 | active |
| MGdaasLab/WHartTest WHartTest is an AI-driven test automation platform built on Django 5.2 + DRF with a Vue frontend, generating and managing executable test c… | 85 | 1073 | active |
| harehare/mq mq is a jq-like command-line tool and query language for slicing, filtering, and transforming Markdown via its AST, written in Rust as a si… | 84 | 1064 | active |
| splx-ai/agentic-radar Agentic Radar is an open-source security scanner that analyzes LLM agentic workflows built with popular frameworks (e.g., CrewAI, LangGraph… | 47 | 1056 | active |
| Minima-AI-Inc/minima Minima is an open-source, on-premises conversational RAG system deployed via Docker containers. It supports fully local operation with Olla… | 38 | 1055 | active |
| wrtnlabs/agentica Agentica is a TypeScript agentic AI framework specialized in LLM function calling, enhanced by compiler-driven validation via typia. Agents… | 65 | 1046 | active |
| dropseed/plain Plain is a Python web framework for building database-backed applications, originally forked from Django and redesigned around explicit, ty… | 75 | 1044 | active |
| Refact Refact is an open-source, self-hosted AI coding agent written in Rust that plans and executes engineering tasks end-to-end from your IDE, w… | 10 | 3541 | maintenance |
| beizhu-1209/AIHelms AIHelms is a self-hosted enterprise AI resource governance platform that provides a unified AI gateway for managing models from OpenAI, Azu… | 79 | 1035 | active |
| tempoxyz/tempo Tempo is a Rust-based blockchain purpose-built for stablecoin payments, built on the Reth EVM execution SDK with sub-second finality via Si… | 82 | 1034 | active |
| dtsola/xiaoyaosearch XiaoyaoSearch is a cross-platform desktop application (Electron + Python/FastAPI) that lets users find local files using AI-powered semanti… | 74 | 1034 | active |
| agents-flex/agents-flex Agents-Flex is a lightweight, modular Java framework for building AI applications and agents, positioned as a Java counterpart to Spring AI… | 91 | 1032 | active |
| BGmi/BGmi BGmi is a Python CLI tool with a Web UI for subscribing to and automatically downloading bangumi (anime) episodes via torrent sources like … | 89 | 1026 | active |
| bytechefhq/bytechef ByteChef is an open-source, self-hostable platform that combines AI agent orchestration with workflow automation and API integration. It pr… | 98 | 1017 | active |
| alumnium-hq/alumnium Alumnium is an AI-native library and MCP server for end-to-end testing that layers natural-language actions, checks, and data extraction on… | 90 | 1016 | active |
| stravu/crystal Crystal (now renamed Nimbalyst) is an open-source Electron desktop app for running multiple Claude Code and Codex AI coding sessions in par… | 57 | 3122 | maintenance |
| dcnetio/web-dc-api web-dc-api is a browser-based decentralized application SDK that unifies wallet-based identity, private user databases, shared key-value st… | 77 | 927 | active |
| go-nunu/nunu Nunu is a CLI scaffolding tool for building Go web applications on top of popular libraries like Gin, GORM, Wire, Viper, and Zap, following… | 85 | 2609 | maintenance |
| glowingjade/obsidian-smart-composer Smart Composer is an Obsidian plugin that adds an AI chat assistant with contextual awareness of your vault, smart writing assistance, and … | 58 | 2331 | maintenance |
| Amazon Q Developer CLI Amazon Q Developer CLI is an open-source Rust-based terminal tool providing an agentic AI chat experience for building applications with na… | 69 | 1983 | maintenance |
| TrainPPTAgent MultiAgentPPT is a Python-based multi-agent system that generates editable presentation slides from a topic using A2A, MCP, and Google ADK … | 64 | 1643 | maintenance |
| TraderAlice/OpenAlice OpenAlice is a local-first trading workspace that turns coding agents (Claude Code, Codex, OpenCode, etc.) into trading agents by giving th… | 81 | 7200 | experimental |
| builderz-labs/mission-control Mission Control is a self-hosted, MIT-licensed control plane (Next.js app backed by SQLite) for operating AI agent runtimes like OpenClaw, … | 78 | 6326 | experimental |
| grafbase/grafbase Grafbase is a high-performance GraphQL Federation Gateway (Rust router) plus CLI, acquired by The Guild in 2026. The cloud platform has bee… | 79 | 1228 | maintenance |
| dimensionalOS/dimos DimOS is a Python SDK and agent-native operating system for generalist robotics, letting users command humanoids, quadrupeds, and drones in… | 89 | 4673 | experimental |
| CaviraOSS/OpenMemory OpenMemory is a local-first, self-hosted cognitive memory engine that gives LLM applications and AI agents persistent long-term memory, wit… | 66 | 4523 | experimental |
| i-am-bee/acp The Agent Communication Protocol (ACP) is an open protocol with Python and TypeScript SDKs for enabling AI agents built on different framew… | 10 | 1019 | maintenance |
| bknd-io/bknd bknd is a lightweight, batteries-included backend-as-a-service (Firebase/Supabase alternative) providing data management, authentication, m… | 73 | 3771 | experimental |
| vercel-labs/fx fx is a tiny, open-source coding agent harness and CLI written in Zig, designed for minimalism, fast cold starts, and embeddability in larg… | 81 | 3535 | experimental |
| codeaashu/claude-code A repository containing the leaked TypeScript source code of Anthropic's Claude Code, an agentic coding CLI that edits files, runs commands… | 56 | 3372 | experimental |
| cheshire-cat-ai/core Cheshire Cat AI is a Python framework and microservice for building conversational AI agents with LLMs, tools, RAG, and plugins, served wit… | 87 | 3093 | experimental |
| CompozyOS CompozyOS is a self-hosted 'operating system for AI agents' written in Go that wraps existing agent CLIs (Claude Code, Codex, Gemini CLI, O… | 78 | 2810 | experimental |
| Bitterbot-AI/bitterbot-desktop Bitterbot is a local-first desktop AI agent with persistent memory, a 'dream engine' that consolidates skills while idle, and a peer-to-pee… | 83 | 2478 | experimental |
| kenn-io/msgvault msgvault is a Go application that archives a lifetime of email, chat, calendar, and meeting data into a local SQLite/DuckDB store, supporti… | 83 | 2160 | experimental |
| Ante Ante is a self-contained terminal-based coding agent harness written in Rust, distributed as a single ~15MB binary with zero runtime depend… | 80 | 2011 | experimental |
| Eynzof/Hermes-CN-Desktop A Windows-first desktop client for Hermes Agent built by the Chinese-language Hermes Agent community, using Tauri v2, Rust, React, and Type… | 79 | 1712 | experimental |
| i365dev/free4chat Free4Chat is a web application for opening temporary real-time rooms with voice chat, text chat, screen sharing, and browser-to-browser fil… | 95 | 1221 | experimental |
| microsoft/agentrc AgentRC is a Microsoft CLI tool (also a VS Code extension) that measures how 'AI-ready' a repository is and generates context files like Co… | 70 | 1107 | experimental |
| GitHub Copilot Chat The GitHub Copilot Chat extension for Visual Studio Code, providing AI chat, inline suggestions, and autonomous agent capabilities inside t… | 10 | 9960 | abandoned |
| 21st-dev/1code 1Code is an open-source desktop and web client for orchestrating coding agents like Claude Code and Codex, with a Cursor-like UI, diff prev… | 10 | 5582 | abandoned |
| iFlow CLI iFlow CLI is a terminal-based AI coding assistant that analyzes repositories, executes coding tasks, and automates workflows using free AI … | 47 | 5084 | abandoned |
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