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

claude-code-antigravity-a-z

6
@siracalaks

Claude Code + Google Antigravity için A-Z rehber (TR + EN). Slash komutlar, MCP, skills, hooks, subagents, plugins, MVP playbook ve hazır örnekler tek repoda.

updated May 2026

mini-claude-for-legal

6
@sboghossian

982 legal AI skills in standard Anthropic SKILL.md format — drafting, review, knowledge packs, litigation simulation, legal education, safety, connectors. MENA-first jurisdictional lens. Extracted and enriched from the Louis (HAQQ Legal AI) skill registry.

updated Jun 2026

claude-smb-sverige

6
@seabasst

Svensk komplement-stack till Anthropics Claude for Small Business. 11 Claude Skills för Bokio, moms, AGI, K10 och svenskt regelverk.

updated May 2026

oh-my-hermes-for-legal-researcher

6
@charliehotel

Hermes Agent skill for US legal research — statute, regulation, and case law methodology ported from Anthropic's claude-for-legal (Apache 2.0).

updated May 2026

awesome-claude-plugins

6
@rdmgator12

Community-maintained directory of plugins in Anthropic's official Claude Plugins catalog — 132 bundles of skills, MCP servers, slash commands, sub-agents, and hooks for Claude Code and Cowork. Not affiliated with Anthropic.

updated Jun 2026

skill-hook-authoring

6
@aldegad

Authoring guide for shared Claude Code + Codex CLI skills and hooks (cross-engine install pattern, modern PreToolUse decision schema, payload contract).

updated Jun 2026

Claude-Agentic-Skills2.0-version

6
@vignesh2027

Been building this for 6 months. Finally at a place where I'm comfortable sharing it.

updated Jun 2026

suanfish-design-system

6
@SuanFishXYY

🐟 Suanfish Design System — 33 specialized AI design agents across 7 tiers with REJECT mechanism. Multi-agent design language SKILL for Claude Code / Codex CLI / Copilot CLI. v2.5 adds AI-native Path G (streaming · tool-calls · reasoning · citations · artifacts).

updated Jun 2026

publicskills

6
@HugoVeltorai

A collection of Claude Skills for senior leaders and the people who work alongside them. They are built for the executive who is time-poor and judgement-rich: someone who does not need another tool that produces generic output, but a set of capabilities that carry real operating judgement and ask the right questions before they answer

updated May 2026

mythosharness

6
@openguardrails

Mythos-class autonomous vulnerability discovery from any strong coding model (Opus 4.7, GPT-5.5, DeepSeek V4, Gemini). Long-running, email-driven, self-distills skills, mutates its own code.

updated Jun 2026

ankiweb-add-card

6
@htlin222

Tiny CLI to create decks and add cards on AnkiWeb via its internal protobuf endpoints — no browser. Also ships as a Claude skill.

updated Jun 2026

vision-mcp

6
@Haruhiyuki

A high-performance desktop app interaction framework for AI agents — faster, cheaper, more accurate. / 让 Agent 操作桌面软件更快、更准、更省。

updated Jun 2026

brief

6
@inerrata

Full-stack marketing skill for Claude that drafts copy, audits pages, and plans campaigns—with guardrails. Tested against 26 evals. +20pp over baseline.

updated Jun 2026

Anthropic-Claude-Function-Calling

5
@g-hano

This project utilizes Anthropic's LLM (Large Language Model), claude-3, for natural language processing tasks, particularly for function calling. The project includes custom tools for searching Wikipedia and retrieving financial data from Yahoo Finance.

updated Aug 2025

bedrock-engineer

5
@yair4Data

Bedrock Engineer is an interactive command-line interface (CLI) that leverages the power of Anthropic's Claude-3.5-Sonnet model to assist with software development tasks. This tool combines the capabilities of a large language model with practical file system operations and web search functionality. based on claude-engineer repository.

updated Sep 2024

git-ai-summarize

5
@kevinmbeaulieu

A command-line tool for summarizing changes in Git repositories using AI.

updated Mar 2026

claude-agent-toolkit

5
@CyberNerdsTechnologies

🛠️ Build and customize Claude Code agents with tools and Docker isolation for efficient production workflows and advanced reasoning capabilities.

updated Jun 2026

clau.rs

5
@frgmt0

clau.rs is a type-safe SDK for the Claude Code tool by Anthropic

updated Mar 2026

mcp-phenoage-clock

5
@199-mcp

MCP server for calculating biological age using the Morgan Levine PhenoAge clock

updated Feb 2026

cc-notification

5
@kmio11

Claude Code Notification hook scripts

updated May 2026

claude-code-jarvis-hooks

5
@swapnildahiphale

Claude Code hooks that talk

updated Oct 2025

claude-code-rollback

5
@ananddtyagi

Auto commit hook to help with easier Claude Code change rollback

updated Apr 2026

json-translated-ai

5
@streamwhite

A CLI tool that automatically synchronizes and translates JSON translation files using multiple AI providers including OpenAI GPT, Anthropic Claude, and Google Gemini models. Perfect for translations across multiple languages. Star ⭐️ to support.

updated Feb 2026

claude-kiro

5
@angelsen

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

updated May 2026
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