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

8165entries
★ starsA–Z name

arkon

918
@nduckmink

Arkon: Enterprise AI Knowledge Hub & MCP Server. Self-hosted knowledge base for teams to manage RAG contexts, access policies, and AI skills. Connect Claude and other LLMs via Model Context Protocol (MCP) for automated, secure organizational knowledge integration.

updated Jun 2026

pm-claude-skills

916
@mohitagw15856

Professional skills for Claude AI — 167 skills across 17 professions. Save 8-10 hours per week. PM stands for Professional.

updated May 2026

tutor-skills

913
@bevibing

A Claude Code skill that turns PDFs, docs, and codebases into Obsidian study vaults

updated Jun 2026

claude-code-source-code

913
@777genius

Claude code source code

updated May 2026

arcade-mcp

910
@ArcadeAI

MCP Server Framework and Tool Development library for building custom capabilities into agents.

updated May 2026

opc-skills

906
@ReScienceLab

Agent Skills for Solopreneurs

updated Jun 2026

memory-bank-mcp

905
@alioshr

A Model Context Protocol (MCP) server implementation for remote memory bank management, inspired by Cline Memory Bank.

updated May 2026

kubectl-mcp-server

902
@rohitg00

Published in CNCF Landscape: A MCP server for Kubernetes.

updated Jun 2026

12306-mcp

902
@Joooook

This is a 12306 ticket search server based on the Model Context Protocol (MCP).

updated Jun 2026

council-of-high-intelligence

901
@0xNyk

18 AI personas deliberate your hardest decisions across multiple LLM providers. Aristotle, Feynman, Kahneman, Torvalds & more — structured multi-round deliberation with genuine model diversity. One command: /council

updated Jun 2026

wassette

899
@microsoft

Wassette: A security-oriented runtime that runs WebAssembly Components via MCP

updated Jun 2026

notchi

898
@sk-ruban

notch app for claude code & codex

updated May 2026

awesome-ralph

894
@snwfdhmp

A curated list of resources about Ralph, the AI coding technique that runs AI coding agents in automated loops until specifications are fulfilled.

updated May 2026

flow-like

886
@Rheosoph

Flow-Like: Strongly Typed Enterprise Scale Workflows. Built for scalability, speed, seamless AI integration and rich customization.

updated May 2026

spec_driven_develop

884
@zhu1090093659

A structured development methodology for AI coding agents, inspired by Qian Xuesen's engineering cybernetics. Closed-loop feedback control keeps plans aligned with reality. Pure Markdown, any platform.

updated Jun 2026

mcp-google-sheets

883
@xing5

This MCP server integrates with your Google Drive and Google Sheets, to enable creating and modifying spreadsheets.

updated May 2026

annas-mcp

881
@iosifache

MCP server and CLI tool for searching and downloading documents from Anna's Archive

updated May 2026

hyper-mcp

879
@hyper-mcp-rs

📦️ A fast, secure MCP server that extends its capabilities through WebAssembly plugins.

updated May 2026

cccc

878
@ChesterRa

Coordinate your coding agents like a group chat — read receipts, delivery tracking, and remote ops from your phone. One pip install, zero infrastructure. A production‑minded orchestrator for 24/7 workflow

updated May 2026

restheart

876
@SoftInstigate

The Agent-Ready Backend for MongoDB.

updated May 2026

WellAlly-health

874
@huifer

Ally-Health is an intelligent healthcare assistant that combines Claude AI technology with medical expertise. Through natural language interaction, it helps users record symptoms, manage medications, track medical records, and access professional multidisciplinary consultation analysis—making health management smarter and more accessible

updated May 2026

happier

873
@happier-dev

Web, Desktop & Mobile client for Codex, Claude Code, OpenCode, Kimi, Augment Code, Qwen, fully end-to-end encrypted

updated Jun 2026

cve-mcp-server

872
@mukul975

Production-grade MCP server giving Claude 27 security intelligence tools across 21 APIs — CVE lookup, EPSS scoring, CISA KEV, MITRE ATT&CK, Shodan, VirusTotal, and more.

updated Jun 2026

VectorCode

866
@Davidyz

A code repository indexing tool to supercharge your LLM experience.

updated Jun 2026
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