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

8250entries
★ starsA–Z name

claude-starter

77
@raintree-technology

Advanced Claude Code framework: 40+ skills, meta-commands, TOON format (30-60% token savings), workflow automation & skill orchestration. npx create-claude-starter@latest

updated May 2026

ai-driven-development

77
@CodeAlive-AI

Practices, protocols, and skills for AI-driven software development. 18 skills + 1 Bash safety hook for Claude Code, Codex CLI, OpenCode, Cursor, Gemini CLI, Antigravity, and any agent supporting the Agent Skills standard.

updated Jun 2026

obsidian-claude-ide

77
@petersolopov

Obsidian plugin — real-time editor context for Claude Code

updated May 2026

agentanycast

77
@AgentAnycast

Connect AI agents across any network — zero config, encrypted, skill-based routing

updated May 2026

mymir

77
@FrkAk

Project management for the agentic engineering era.

updated Jun 2026

github-brain

76
@wham

An experimental GitHub MCP server with local database.

updated May 2026

masquerade

76
@postralai

The Privacy Firewall for LLMs

updated Apr 2026

optuna-mcp

76
@optuna

The Optuna MCP Server is a Model Context Protocol (MCP) server to interact with Optuna APIs.

updated May 2026

unraid-mcp

76
@jmagar

Query, monitor, and manage Unraid servers via GraphQL API through MCP tools. Supports system info, Docker, VMs, array/parity, notifications, plugins, rclone, and live telemetry.

updated Jun 2026

clinicaltrialsgov-mcp-server

76
@cyanheads

MCP server for the ClinicalTrials.gov v2 API. Search trials, retrieve study details and results, and match patients to eligible trials.

updated May 2026

claude-code-plugins

76
@melodic-software
updated Jun 2026

perplexity-web-api-mcp

76
@mishamyrt

🔍 Perplexity AI MCP without API key

updated May 2026

trainingpeaks-mcp

76
@JamsusMaximus

TrainingPeaks MCP server for Claude Desktop, Code and Cowork. No API approval needed - works with any account. Query workouts, CTL/ATL/TSB fitness data, power PRs via natural language.

updated May 2026

kode-sdk-csharp

76
@JinFanZheng

Kode Agent SDK for .NET - Event-driven AI Agent runtime supporting Anthropic Claude and OpenAI GPT models with tool calling, state management, and event streaming

updated May 2026

rosetta

76
@griddynamics

Meta-prompting, context engineering, and centralized instructions management for AI coding agents

updated Jun 2026

rune

76
@Rune-kit

Less skills. Deeper connections. A lean, interconnected skill ecosystem for Claude Code.

updated May 2026

home-memory

76
@impactjo

MCP server that lets your AI assistant remember everything about your home.

updated May 2026

opencode-claude-code-plugin

76
@unixfox

Use Claude Code in OpenCode - created from idea https://github.com/anomalyco/opencode/issues/9677

updated May 2026

overmind

76
@xuanlinAI

玄霖超脑 · 无量网络 v4 重构版— 66 模块6通道 AI 认知神经系统 · 装一次,你所有的 AI 工具从此共享一个永远不失忆的大脑。跨会话记忆 · 多 Agent 互通 · 自动代码审查 · 零配置

updated Jun 2026

MCP-wolfram-alpha

75
@SecretiveShell

Connect your chat repl to wolfram alpha computational intelligence

updated Apr 2026

mcp-server-node

75
@lucianoayres

MCP Server implemented in JavaScript using Node.js that demonstrates how to build an MCP server with a custom prompt and custom tools, including one that loads an environment variable from a configuration file, to integrate seamlessly with AI-assisted environments like Cursor IDE.

updated May 2026

caldav-mcp

75
@dominik1001

🗓️ A CalDAV Model Context Protocol (MCP) server to expose calendar operations as tools for AI assistants.

updated Jun 2026

End-to-End-Agentic-Ai-Automation-Lab

75
@MDalamin5

This repository contains hands-on projects, code examples, and deployment workflows. Explore multi-agent systems, LangChain, LangGraph, AutoGen, CrewAI, RAG, MCP, automation with n8n, and scalable agent deployment using Docker, AWS, and BentoML.

updated May 2026

Custom-MCP-Server

75
@Sharan-Kumar-R

MCP server for scraping LinkedIn, Facebook, Instagram profiles and Google search.

updated May 2026
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