Open-Source Directory — Claude / Anthropic

Claude
Tools

A curated index of extensions, plugins, MCP servers, hooks, and integrations for Claude — discovered from GitHub and refreshed daily.

Repository Growth — Last 30 Days

8253entries
★ starsA–Z name

mcp-google-calendar

32
@markelaugust74

A Model Context Protocol (MCP) server implementation for Google Calendar integration. Create and manage calendar events directly through Claude or other AI assistants.

updated Jun 2026

claude-mcp-trello

32
@hrs-asano

A Model Context Protocol (MCP) server that provides tools for interacting with Trello boards.

updated May 2026

mcp-bash

32
@patrickomatik

A simple model context protocol (MCP) server that allows Claude Desktop or other MCP aware clients to run Bash commands on your local machine.

updated May 2026

mcp-hacker-news

32
@paabloLC

This MCP server acts as a bridge between the official Hacker News API and AI-powered tools that support the Model Context Protocol, such as Claude and Cursor.

updated Mar 2026

cc-thingz

32
@alexei-led

Battle-tested Claude/Codex/Gemini/Pi plugin marketplace — 27 skills, 34 agents, 9 hooks for code review, Go/Python/TypeScript/Web dev, infrastructure ops, and spec-driven development

updated Jun 2026

mcp-windows-automation

32
@mukul975

🚀 AI-Powered Windows Automation Server using Model Context Protocol (MCP) | Control Windows apps, automate tasks, and manage systems through natural language commands with Claude, ChatGPT & other AI assistants | 80+ automation tools

updated Jun 2026

ibkr-mcp-server

32
@ArjunDivecha

Interactive Brokers MCP Server for Claude Desktop/Code

updated May 2026

secure-mcp-gateway

32
@datacline

Secure mcp infrastructure to audit and control every data access by AI agents with minimal efforts

updated May 2026

claude-for-chrome

32
@cocodem

Open Claude in Chrome extension. No Claude account or waitlist is required. Simply use your own API key to get instant access.

updated May 2026

hyperliquid-mcp-server

32
@caiovicentino

🚀 MCP Server para Hyperliquid DEX - Trade com Claude usando linguagem natural. Desenvolvido por Caio Vicentino para as comunidades Yield Hacker, Renda Cripto e Cultura Builder

updated May 2026

sdd

32
@LiorCohen

Spec-driven development (SDD) plugin for Claude Code — a collection of specialized AI agents, phased implementation plans, and verified code generation for full-stack teams

updated May 2026

skillz

32
@Algiras

Self-extending MCP server - build and execute custom AI tools at runtime

updated May 2026

claude-code-plugins

32
@mwguerra

MWGuerra Claude Code Marketplace

updated May 2026

zotero-mcp-claude-code

32
@lricher7329

Zotero MCP plugin with Claude Code compatibility - fork by lricher7329

updated May 2026

cursor-history-mcp

32
@S2thend

MCP server for browsing, searching, and exporting Cursor AI chat history.

updated May 2026

claude-ruby-marketplace

32
@hoblin

Claude Code plugin marketplace for Ruby and Rails development

updated May 2026

claude-skills

32
@Yrzhe

A collection of Claude Code skills and plugins. Includes intelligent web scraper with self-learning capabilities.

updated May 2026

apple-mail-mcp

32
@imdinu

Apple Mail MCP server with full-coverage FTS5 body search. Reliable on large mailboxes where AppleScript-based servers timeout.

updated Jun 2026

management-consulting-plugin

32
@anotb

Management consulting skills for Claude Code, Cowork, Codex, and other agents. Strategy, operations, and transformation workflows for the full engagement lifecycle.

updated Jun 2026

hcf

32
@markshust

Autonomous development plugin for Claude Code. Define requirements with a PM, then let parallel workers implement everything using TDD.

updated Jun 2026

claude-code-wordpress.com

32
@Automattic

A Claude Code plugin that helps to build and edit WordPress.com sites

updated May 2026

permafrost-tools

32
@dead1786

Battle-tested utilities for AI coding assistants. Self-guard hooks, memory GC, pitfall tracking.

updated Jun 2026

imprint-memory

32
@Qizhan7

Persistent memory system for Claude Code — hybrid search (FTS5 + vector), message bus, task queue. Works as MCP server (stdio + HTTP).

updated Jun 2026

hwp-mcp

32
@treesoop

MCP server for reading and writing HWP/HWPX (Korean Hangul) documents — built on rhwp. 34 tools, Claude/Cursor/ChatGPT compatible.

updated May 2026
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