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

8237entries
★ starsA–Z name

skill-valet

5
@SDeenAdmin

Parks the Claude Code skills you're not using and fetches them the moment you need them — mid-session, per prompt, no restart. ~21ms UserPromptSubmit hook, fail-open, opt-in config.

updated Jul 2026

claude-skill-router

5
@tsvelovskiysv

Semantic router for Claude Code Agent Skills — finds and installs the right skills for your project from a 65k catalog.

updated Jul 2026

claude-code-hooks-cookbook

5
@rongtnt

Copy-paste Claude Code hooks that actually do something — auto-format, block dangerous commands, test gates, notifications. Dependency-free, current schema.

updated Jul 2026

legal-ops-germany

5
@eliasreiche

Experimenteller Ansatz, die nicht abrechenbare, nicht streng juristische Arbeit deutscher Kanzleien zu erleichtern — Claude-Code-Skills + deterministische Python-Executors. Unofficial, not affiliated with Anthropic. Keine Rechtsberatung.

updated Jul 2026

ai-chrome-extension-template

5
@JCodesMore

Make any Chrome extension with AI agents — autonomous dev loop: plan, build, test in a real browser, iterate, package, release.

updated Jul 2026

trust-issues

5
@howshannon

Adversarial security review for AI skills, repos, MCP servers, and packages before you install them. A read-only scanner plus a five-persona reasoning pass, ending in a GO / GO WITH MITIGATIONS / NO-GO verdict.

updated Jul 2026

geneius

4
@aaronwtr

Geneius is a powerful command-line tool leveraging Anthropic AI's Claude API to help you search through scientific literature and extract evidence for disease-gene associations.

updated Aug 2024

cognify-skills

4
@Adri3l-R3nan

Provide 19 business operation skills for AI agents following the Agent Skills standard to analyze workflows and assess ROI efficiently.

updated Jul 2026

summarizer

4
@amscotti

Summarizer is a command-line tool that generates comprehensive summaries of articles and other text-based content.

updated Jul 2026

claude-large-git-diff-changelog-processor

4
@VicVibesPL

The Large Git Diff Changelog Processor is a Python-based tool designed to efficiently process and summarize large git diff changelog files using the Claude 3.5 model (claude-3-5-sonnet-20240620) via the Anthropic API. It splits large diffs into manageable chunks, generates concise summaries, and compiles the results into an easy-to-read format.

updated May 2025

claude-forge

4
@immacualate

Transform Claude Code into a complete development environment for efficient coding and project management.

updated Jul 2026

acton-ai

4
@Govcraft

Rust framework for building production-ready AI agents using actor-model concurrency with multi-provider LLM support (Claude, OpenAI, Ollama) and built-in tool use

updated May 2026

mcp-proxy-server

4
@Kiran1689

A modular Python client for connecting to MCP servers, integrating with Anthropic Claude, and exposing a FastAPI-based API for handling queries and tool calls.

updated Oct 2025

claude-code-agents

4
@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 Jul 2026

carabiner

4
@outfitter-dev

Library for building Claude Code hooks that are type-safe, maintainable, and shareable

updated Mar 2026

claude-format-hook

4
@ryanlewis

Auto-format code when Claude Code edits files. Supports JavaScript/TypeScript, Python, Go, Kotlin, and Markdown with popular formatters like Biome, Ruff, and Prettier.

updated Jun 2026

remote-coding-extension

4
@fikri2992

remotely control claude code and gemini cli using Agent-client-protocol

updated Mar 2026

claude-code-helper

4
@daodao97

claude code helper extension for vscode

updated May 2026

cc-arsenal

4
@mgiovani

Lock and load your Claude Code workflow with a fully-stocked arsenal of AI agents, commands, hooks, and skills

updated Jul 2026

claude-truth-hooks

4
@Hulupeep

Stop LLMs from lying about code functionality with automated verification hooks

updated Jul 2026

claude-config

4
@aeghnnsw

Personal Claude Code configuration with hooks and statusline

updated Feb 2026

claude-code-hooks-herald

4
@kogitore

Herald your hooks with playful sound cues.

updated Feb 2026

openrouter-go

4
@hra42

A zero-dependency Go client library for the OpenRouter API with full streaming support, comprehensive error handling, and complete API coverage including chat completions, tool calling, structured outputs, and web search.

updated Jun 2026

fullstack-mcp-playground

4
@leonobitech

🥷 MCP Playground: Fullstack AI agent template. Claude + microservices = modular superpowers. Enable weather, DB, files tools from UI gallery. Built for hackers who ship to production 🚀🔥

updated Apr 2026
← PREV01...230231232233234...344NEXT →