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

worktree-task-plugin

39
@ourines

Claude Code plugin for managing large coding tasks using git worktrees and background sessions

updated May 2026

mcp-unreal

39
@remiphilippe

MCP server that gives AI coding agents (Claude Code, Cursor, etc.) full control over Unreal Engine 5.7 projects — headless builds & tests, Blueprint editing, actor manipulation, procedural mesh generation, and UE API documentation lookup.

updated Jun 2026

ralphmad

39
@hieutrtr

Ralph Loop plugin for Claude Code

updated Apr 2026

hidrix-tools

39
@sonpiaz

Standalone MCP server: web search, social media search, web fetch tools for Claude Code / Pi agent

updated May 2026

evc

39
@SaigonXIII

The open-source marketing agent workspace for Claude Code. 42 commands, 12 hooks, 4 industry starters.

updated May 2026

unity-cli-plugin

39
@niqibiao

Claude Code / Codex plugin for Unity — AI-driven scene editing, GameObject/Component manipulation, profiling, and C# REPL via 40+ built-in commands. Works with any Unity 2022.3+ project.

updated May 2026

ebook-maker-skill

39
@irenerachel

【Skill】AI 电子书制作工作流 — Claude Code Skill

updated May 2026

Threatswarm

39
@mukul975

27 scope-enforced AI agents that run the full pentest kill-chain (recon → exploit → post-ex → DFIR → report) as a one-command Claude Code plugin. Backed by 754 MITRE-mapped skills.

updated Jun 2026

markifact-mcp

39
@markifact

MCP server for Google Ads, Meta Ads, GA4, TikTok Ads, and LinkedIn Ads. Manage 300+ ad operations from Claude, ChatGPT, Gemini, Cursor, or any AI client. Human-in-the-loop on every write.

updated May 2026

docx-template-translator-skill

39
@zouchenzhen

Codex / Claude Skill for translating LaTeX, PDF, or Markdown into a specified Word template. 让 AI 将 LaTeX / PDF / Markdown 转写为指定 Word 模板格式。

updated Jun 2026

teaching-site-skills

39
@kevintsai1202

11 agent skills (Anthropic Skills format) — one `npx skills add` installs the full pipeline for building interactive teaching sites end-to-end on Claude Code / Codex / Antigravity / 55+ AI coding agents. | 11 個 agent skills,一條 npx skills add 把「從零打造互動式教學網站」完整 pipeline 裝進 55+ AI coding agent。

updated May 2026

cloakFetch

39
@Agents365-ai

Claude Code PostToolUse hook: when WebFetch hits Cloudflare/403, transparently retry through CloakBrowser headlessly and inject clean markdown via defuddle.

updated Jun 2026

claude-code-aso-skill

38
@wsbs20

🚀 Optimize App Store visibility with AI agents in the Claude Code framework for enhanced performance and growth.

updated Jun 2026

Outlook_Calendar_MCP

38
@merajmehrabi

A Model Context Protocol (MCP) server that allows Claude to access and manage your local Microsfot Outlook calendar (Windows only).

updated May 2026

Volatility-MCP-Server

38
@bornpresident

A Model Context Protocol (MCP) server that integrates Volatility 3 memory forensics framework with Claude

updated Jun 2026

tally-mcp-server

38
@dhananjay1405

Tally Prime MCP (Model Context Protocol) Server implementation to feed Tally ERP data to popular LLM like Claude, ChatGPT supporting MCP

updated May 2026

lastfm-mcp

38
@rianvdm

An MCP server that provides seamless access to a user's Last.fm listening data and music information via AI assistants like Claude.

updated May 2026

Full-system-prompts

38
@oxbshw

Full System Prompt Transparency for All—that aggregates full system prompts, guidelines, and tools from major AI models like ChatGPT, Gemini, Claude, Mistral, Anthropic, xAI, Perplexity, and more. It’s dedicated to exposing hidden AI instructions to build trust through openness.

updated May 2026

diy-tools-mcp

38
@hesreallyhim

An MCP server that allows users to dynamically add custom tools/functions at runtime

updated Apr 2026

appium-mcp

38
@1405942836

Appium MCP Server 是一个异步、高性能的移动自动化测试框架,基于 MCP 协议与 Claude/ChatGPT 等 AI 集成,支持 Android/iOS 设备的发现、连接、UI 自动化和系统操作。

updated May 2026

cc-hooks-ts

38
@sushichan044

Define Claude Code hooks with full type safety.

updated Jun 2026

asc-mcp

38
@zelentsov-dev

MCP server for App Store Connect API — 208 tools for managing apps, builds, TestFlight, subscriptions, and more from Claude, Cursor, VS Code, or any MCP client

updated Jun 2026

claude-code-prompt-optimizer

38
@johnpsasser

AI-powered prompt optimization hook for Claude Code. Transforms simple prompts into comprehensive, structured instructions using Claude Opus 4.6's advanced reasoning capabilities.

updated May 2026

claude-code-plugins

38
@fiberplane
updated May 2026
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