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-cortex

6
@matteo-stratega

Cortex — an operating system for Claude Code. Persistent memory, specialized agents, smart skills, enforcement hooks.

updated Jun 2026

xiaohongshu-images-skill

6
@iamzifei

Claude Skill that makes 3:4 Xiaohongshu/小红书 images based on the content

updated May 2026

skill-description-optimizer

6
@LZMW

Meta-skill for optimizing Claude Skill descriptions using SDS standard and data-driven analysis

updated Feb 2026

oolong-pairs

6
@zircote

Benchmark harness for A/B testing Claude Code plugins against OOLONG long-context reasoning tasks. Compare truncation vs RLM-RS recursive chunking strategies. Features Claude Code hooks integration, SQLite persistence, and comprehensive scoring aligned with the OOLONG paper methodology.

updated May 2026

agent-operator

6
@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 Mar 2026

claude-code-set-global-agent

6
@RandyHaylor

using a hook, an instruction is sent to claude code to act as a specified agent, changing the top level default behavior (which is not as effective when using Claude.md, etc.)

updated Feb 2026

solana-game-skill

6
@solanabr

Claude Code skills for C#, Solana Unity SDK, Solana Mobile and Playsolana Unity SDK.

updated May 2026

zAI-Skills

6
@Aznatkoiny

Claude Code plugin marketplace — AI/ML toolkit, consulting frameworks, and real estate investment analysis

updated May 2026

agent-skills

6
@mikeng-io

Composable, model-agnostic AI agent skills for multi-agent analysis, verification, research, and multi-model council review. Works with Claude Code, Gemini, Codex, and OpenCode.

updated May 2026

claude-handoff-baton

6
@quantsquirrel

Claude Code session handoff skill - preserve context across sessions with failed approaches tracking, handoff chain, and quality validation

updated May 2026

anthropic-claude-skills

6
@sausi-7
updated Jun 2026

odoo-claude-code

6
@echozen88

Production-ready agents, skills, hooks, commands, and rules tailored specifically for the Odoo ERP framework.

updated Apr 2026

pi-vertex-anthropic

6
@skyfallsin

Pi coding agent extension for Claude via Google Cloud Vertex AI

updated Jun 2026

unai-unity-ai-connector

6
@experir

Universal AI Connector for Unity. Unified C# API for OpenAI, Claude, Gemini, Mistral, Ollama + 5 more. AI agents with tool calling, built-in MCP server, editor assistant with lot of tools. One package for runtime, agents, and MCP.

updated Jun 2026

nanobot

6
@yukihamada

AI Agent Platform built in Rust — Multi-model, MCP tools, 14+ channel integrations. Self-host or use teai.io

updated May 2026

ssq-predictor

6
@ma-pony

双色球预测分析 Agent Skill,融合概率统计、物理学、易经玄学三维度分析,支持 Claude Code / Cursor / Windsurf / Codex CLI

updated May 2026

aily

6
@jiunbae

Claude Code notification hooks - Discord notifications with per-tmux-session threads

updated May 2026

claude-code-skills

6
@almeidamarcell

Skills that supercharge Claude Code

updated May 2026

ClawdCommit

6
@ShiftinBits

VSCode extension to simplify generating commit messages with Claude Code CLI

updated May 2026

rednote-analyzer-mcp

6
@ShellyDeng08

MCP server for RedNote (Xiaohongshu) — analyze content, comments, and trends with structured tools for LLM workflows.

updated Apr 2026

website-design-systems-mcp

6
@Kargatharaakash

Extract complete design systems from any website and generate AI-ready skill.md files

updated May 2026

Youtube-Transcript-API

6
@Youtube-Transcript-Dev

YouTube Transcript API — Extract, transcribe, and translate YouTube videos at scale. Supports captions, audio transcription (ASR), batch processing, and 100+ languages. https://youtubetranscript.dev

updated Mar 2026

erpnext-skill

6
@6missedcalls

Claude Code skill with comprehensive Frappe Framework & ERPNext v15 API reference. Gives your AI assistant full context on DocTypes, controllers, hooks, REST APIs, form scripts, and 14+ module references.

updated Apr 2026

code-memory

6
@panglisen

基于文件系统的 Claude Code 三层记忆系统,零外部服务依赖。BM25 + 向量 RRF 混合搜索,Hook 驱动自动化。

updated Mar 2026
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