Best MCP Tools Top 20
Top 20 most popular open-source MCP Tools projects, ranked by GitHub Stars.
System Prompts and Models of AI Tools
142.9k StarsFull system prompts, internal tools and AI models from 40+ popular AI tools including Cursor, Devin, Windsurf, Manus, Lovable, and more.
Awesome MCP Servers
92.4k StarsA curated collection of hundreds of community-verified MCP server implementations spanning databases, search engines, dev tools, browser automation, and more, helping developers quickly discover and integrate MCP services for their use cases.
MCP Servers
89.6k StarsMCP Servers provides a large collection of reusable Model Context Protocol server implementations, giving agents standardized tool capabilities.
Awesome Claude Skills
72.6k StarsA curated list of awesome Claude Skills, resources and tools for customizing Claude AI workflows.
Headroom
66.5k StarsContext compression layer that compresses tool outputs, logs, files, and RAG chunks before they reach the LLM, saving 60-95% of tokens while preserving answer quality. Available as library, proxy, or MCP server.
Last30Days Skill
58.4k StarsAn AI agent skill that researches any topic across Reddit, X, YouTube, HN, Polymarket and the web, then synthesizes a grounded summary.
CLIProxyAPI
47.4k StarsWrap Gemini CLI, Antigravity, ChatGPT Codex, Claude Code as an OpenAI/Gemini/Claude/Codex compatible API service for unified agent access.
Obsidian Skills
46.4k StarsAgent skills for Obsidian. Teach your agent to use Markdown, Bases, JSON Canvas, and use the CLI.
Antigravity Awesome Skills
45.0k StarsAn installable library of 1,400+ agentic skills for Claude Code, Cursor, Codex CLI, Gemini CLI and more, with installer CLI, bundles and workflows.
Marketing Skills
44.5k StarsMarketing skills for Claude Code and AI agents, covering CRO, copywriting, SEO, analytics and growth engineering.
Codebase Memory MCP
39.1k StarsHigh-performance code intelligence MCP server that indexes codebases into a persistent knowledge graph, supporting 66 languages with sub-millisecond queries and 99% fewer tokens.
Claude Code Plugins
33.6k StarsThe official Anthropic-managed directory of high-quality Claude Code plugins, installable via the /plugin command.
GitHub MCP Server
32.3k StarsGitHub's official MCP Server providing standardized access to GitHub APIs for AI agents, supporting repository management, issue handling, and PR operations.
Vibe-Trading
31.0k StarsVibe-Trading is an open-source personal trading agent stack that combines LLMs, MCP tooling, and multi-agent workflows for algorithmic trading and backtesting.
Google Workspace CLI
30.4k StarsA unified CLI for Google Workspace covering Drive, Gmail, Calendar, Sheets, Docs and more, with built-in AI agent skills for automation.
Vercel Agent Skills
30.1k StarsVercel's official collection of agent skills, providing practical skill modules and tools for AI coding agents.
Serena
28.1k StarsPowerful MCP toolkit for coding that provides semantic retrieval and editing capabilities, serving as an IDE for AI agents
FastMCP
27.2k StarsFastMCP is a fast, Pythonic library for building MCP servers and clients with over 1 million daily downloads, making it easy to create Model Context Protocol tools.
Blender MCP
25.9k StarsMCP server for Blender that enables AI agents to directly control the 3D modeling software for natural language-driven scene creation, model manipulation, and rendering automation.
MCP Python SDK
24.0k StarsMCP Python SDK is the official Python implementation for building MCP servers and agent-side integrations with a standardized tool protocol.
Related Articles
Agent Rate Limiting and Cost Attack Defense: Token Quotas, Sliding Windows, Attack Vector Practice
Systematic guide to rate limiting and cost attack defense for LLM Agents in production: single-user token quotas, multi-tenant sliding windows, prompt injection amplifying cost, DDoS protection, and integration with LangChain/CrewAI/AutoGen frameworks.
AI Agent Security in Practice: From Prompt Injection to Defense in Depth
A systematic walkthrough of three major attack surfaces in AI agents, with practical code examples for prompt injection defense, tool permission scoping, and output filtering.
Best MCP Servers in 2026: 25 Servers Worth Integrating, From Official to Community
A 2026 review of the 25 Model Context Protocol (MCP) servers most worth integrating, covering GitHub, databases, browsers, filesystem, code search, Google Workspace, Slack, Notion, and more. Includes official SDK vs community implementations and configuration in Claude Code, Cursor, and Cline.