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

audit-skill

8
@wwwazzz

Two-pass code audit skill for Claude Code: adversarial Opus deep review + Codex second opinion

updated May 2026

grounded-research

8
@moonpiesheldon1337

A Claude skill that enforces citation-first research discipline. Classifies claims, verifies before writing, signals confidence levels, and audits output for hallucinations. Works with Claude.ai, Claude Code, Cursor, Codex, and Gemini CLI.

updated Jun 2026

retro-bot

8
@cometogather

Leave things better than you found them! This claude skill seamlessly integrates iterative feedback across your claude stack and keeps an audit log/paper trail.

updated Jun 2026

scholar-megasearch

8
@TaewoooPark

Massive multi-source academic literature search for Claude Code — one skill fans out subagents across 20+ scholarly databases (arXiv, Semantic Scholar, Crossref, OpenAlex, PubMed, …), merges into a deduplicated ranked corpus, and acquires the original PDFs.

updated May 2026

arabic-pii-py

8
@Aajil-Labs

Keep Arabic & Gulf personal data off the LLM — local-first, reversible PII tokenization (CLI, proxy, and a Claude Code hook).

updated Jun 2026

skills-travel-planner

8
@huanyuzhilv

开源 AI 路书生成工具 · Cursor/Claude Agent Skill:简版行程表 → tripData.json → 可交付 HTML/PDF。小红书配图、LLM 润色、飞猪酒店数据。Open-source AI travel roadbook generator for custom tour advisors.

updated Jun 2026

bibble

7
@pinkpixel-dev

Transform your terminal into an intelligent AI workspace with autonomous tool-calling and multi-step workflow execution, real-time streaming responses, persistent chat history, and comprehensive MCP (Model Context Protocol) client functionality for seamless tool integration.

updated Jan 2026

model-exchange-grammar-protocol

7
@jonschlinkert

The Model Context Grammar Protocol defines a simple, extensible, and non-deterministic grammar for specifying valid message types and their arrangements in exchanges with language models. This protocol enables precise, unambiguous specification of interactions including multimodal content, tool calls, and flexible message sequencing.

updated Nov 2025

llm-env

7
@samestrin

Force any OpenAI-compatible or Anthropic API-compatible tool (Claude Code, Qwen Code, Aider, Fabric, Interpreter) to use Gemini, Groq, Cerebras, or Ollama. Pure Bash. Zero dependencies.

updated May 2026

ClaudeKit

7
@zpaper-com

Official marketplace for Claude Code extensions - agents, slash commands, and hooks

updated Apr 2026

claude-code-prompts

7
@p0

System prompts and tool definitions from each version of @anthropic-ai/claude-code

updated Mar 2026

Skills-Vendure

7
@niko91i

Comprehensive Claude Code skill for Vendure e-commerce development. Provides expert knowledge on headless commerce, GraphQL APIs, plugins, payments, and Dashboard extensions from official documentation.

updated May 2026

lsbible

7
@kdcokenny

Bible SDK and MCP server – give Claude, Cursor, and AI apps ground-truth Scripture context

updated Mar 2026

claude-skills-hub

7
@CavinHuang

🚀 Claude Skills Hub - 150+ Free Claude Skills for Enhanced AI Coding. A marketplace of expert-crafted workflows to boost your Claude Code experience.

updated May 2026

behavioral-prediction-mcp

7
@ChainAware

AI-powered tools to analyze wallet behaviour prediction,fraud detection and rug pull prediction.

updated Apr 2026

hooksy

7
@ihavespoons

A Claude code security hook tool

updated Mar 2026

typo3-extension-upgrade-skill

7
@netresearch

Agent Skill for systematically upgrading TYPO3 extensions to newer LTS versions | Claude Code compatible

updated May 2026

Visualizer

7
@coleschaffer

Chrome extension that lets you click any element, describe what you want changed, and Claude Code makes it happen

updated Jan 2026

claude-skills

7
@rohailaltaf

🤖 Claude Code skills that automate the tedious parts of development. Start with /update-docs to keep your documentation fresh.

updated Jan 2026

claude-conversation-manager

7
@psaban20

Manage Claude Code VS Code extension conversations - rename, analyze, archive, and more

updated May 2026

google-workspace-mcp-with-script

7
@sputnicyoji

MCP server for Claude Code CLI with full Google Workspace integration - Docs, Sheets, Drive, Gmail, Calendar & Apps Script (72 tools)

updated Jun 2026

claude-starter-kit

7
@sunnypatneedi

Complete starter kit for Claude Code with agents, skills, hooks, and MCP configurations

updated Jun 2026

all-my-ai-needs

7
@codingSamss

Claude Code + Codex 双平台 AI dotfiles:统一管理 skills/agents/hooks,并一键同步到 ~/.claude 与 ~/.codex。

updated Jun 2026

claude-code-dart-flutter

7
@ToastyToast25

Claude Code agent system for Dart/Flutter development - 34 agents, 29 skills, templates, hooks, and security tools

updated Apr 2026
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