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

8295entries
★ starsA–Z name

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 Jul 2026

tenx-hooks

★ 7
@tenxhq

Anthropic's Claude Code hooks in Rust

updated Sep 2026

LLM-Diff-Tool

★ 7
@dmeldrum6

Application for comparing responses from different Large Language Models (LLMs) side-by-side

updated Aug 2026

claude-devcontainer-bootstrap

★ 7
@niabhail

Automated bootstrap tool that creates Claude Code development projects by customizing Anthropic's official devcontainer with corporate SSL support, MCP server configuration (task-master-ai, Context7) and VS Code Extensions

updated Jun 2026

claude-code-agents

★ 7
@pfangueiro

Self-healing AI agent framework for Claude Code: 13 specialized SDLC/SSDLC agents, 26 skills, 13 slash commands, 9 hooks, launchd watchdog daemon, observability dashboard. Auto-activating, drift-reconciling, snapshot-protected.

updated Oct 2026

taboolib-skill

★ 7
@TabooLib

TabooLib framework Agent Skills for Claude

updated Aug 2026

claude-kiro

★ 7
@angelsen

Spec-driven development methodology for Claude Code using output styles, slash commands, and hooks

updated Oct 2026

ClaudeKit

★ 7
@zpaper-com

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

updated Apr 2026

claude-mcp-server-gateway

★ 7
@bzsasson

MCP server gateway for Claude Code, Claude Desktop, and Cline. Loads only specific tools from your MCPs as you need them and saves thousands of tokens. Works with any Model Context Protocol server.

updated Sep 2026

claude-code-toolkit

★ 7
@BerryKuipers

Universal Claude Code configuration: agents, skills, workflows, and SessionStart hooks for consistent development across projects

updated Jun 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 Jul 2026

lsbible

★ 7
@kdcokenny

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

updated Aug 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

conversation-to-skill-generator

★ 7
@lirazgershon148

A meta-skill that analyzes Claude conversations and generates reusable Skill.md files. Transform successful workflows into repeatable frameworks.

updated Sep 2026

mcp-compression-proxy

★ 7
@kdpa-llc

Local MCP gateway with progressive tool discovery, description compression, and controlled access to large results.

updated Oct 2026

ajbm-skills

★ 7
@ajbmachon

All claude skills that are generally useful, not specific to a workflow and work across all Anthropic surfaces

updated Jul 2026

hooksy

★ 7
@ihavespoons

A Claude code security hook tool

updated Mar 2026

claude-code-guide

★ 7
@ytrofr

Comprehensive, production-tested guide to Claude Code (Anthropic CLI). 240+ proven patterns, 25 hook events, 59 chapters, ready-to-install best practices. From 1M context optimization to agentic coding workflows.

updated Sep 2026

edgar-change-interpreter

★ 7
@cmdrvl

Claude skill for identifying material changes, silent risks, and interpretation traps in SEC filings (10-K, 10-Q, 8-K). Built by CMD+RVL.

updated Sep 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-code-plugins

★ 7
@hmohamed01

A repository of Claude Code Plugins - Swift, SQL, PowerShell, Rust Agents w/Skills and Hooks

updated Sep 2026

agent-operator

★ 7
@zhangtuansia

搭子(Dazi)- AI 智能体桌面客户端 | AI Agent Desktop App. Built on Claude Agent SDK with multi-session management, MCP integration, and 369+ curated skills.

updated Sep 2026

skill-olympus

★ 7
@Dannykkh

Twelve Greek gods. One command. A working SaaS. 98 skills + 49 agents + 13 hooks for Claude Code + Codex CLI + Gemini CLI. Cross-CLI persistent memory, zero-interaction full pipeline (design → build → inspect → test → ship).

updated Oct 2026

MixCut-Skill

★ 7
@garroshub

AI-powered YouTube video mashup tool. Automatically downloads clips, generates bilingual subtitles, and creates mixed-cut compilations using Remotion.

updated Aug 2026
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