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

skillboss-skills

53
@SkillBoss-AI

MCP server & Claude Code skills for 100+ AI services (LLMs, image/video gen, TTS). One API key, OpenAI-compatible.

updated May 2026

claude-homelab

53
@jmagar

Comprehensive Agents, Commands, Hooks, and Skills for homelab service management - media automation, infrastructure monitoring, document management, and more

updated Jun 2026

claude-agent-sdk-skill-autoupdated

53
@xiaolai

[ARCHIVED 2026-05-18] Superseded by anthropic-docs (multi-skill, 30-min refresh)

updated May 2026

cache-audit

53
@ussumant

A Claude Code skill that audits your setup against the 6 prompt caching rules from Anthropic's engineering team. Returns a scored report with specific fixes.

updated May 2026

jules

53
@jonathanmalkin

A Claude Code Reference Implementation — 30 skills, 23 rules, 9 hooks, 5 agents. Reference implementation for building a personal AI collabtor..

updated May 2026

claudette

53
@utensils

Claude's missing better half — a companion tool for Claude Code usage.

updated Jun 2026

claw-decode

53
@fattail4477

Decoding Claude Code's leaked 512K-line source — hidden features, 43 tool definitions, system prompts, architecture patterns

updated May 2026

EvoHarness

53
@iLearn-Lab

EvoHarness delivers terminal-native agent infrastructure: tools, commands, skills, agents, plugins, MCP, memory, approvals, and controlled self-evolution

updated May 2026

research-app-toolkit

53
@xujingchen1996

Research Application Toolkit - Claude Code plugin for PhD, MRes, MPhil applications

updated May 2026

bioinformatics-agent-skills

53
@variomeanalytics

MCP server for bioinformatics agent skills — query a knowledge graph of 78 bioinformatics workflows directly from Claude Code

updated May 2026

unslop

53
@MohamedAbdallah-14

Make AI output sound human. Strips AI-isms (sycophancy, stock vocab, hedging stacks, em-dash pileups), preserves code/URLs/headings. Plugin for Claude Code, Cursor, Windsurf, Codex, Cline, Copilot, Gemini.

updated Jun 2026

VSCode-Perplexity-MCP

53
@Automations-Project

Perplexity AI search, reasoning, research, and compute - MCP server, dashboard, and multi-IDE auto-config for VS Code.

updated May 2026

line-oa-mcp-ultimate

53
@wasintoh

Talk to your LINE Official Account through AI. 27 tools for broadcasts, audiences, rich menus, Flex messages, coupons & insights — works with Claude Cowork, Claude Code, Cursor, and any MCP-compatible host. Zero infrastructure, free-tier ready.

updated Jun 2026

deepseek-claude-MCP-server

52
@HarshJ23

a MCP server which integrates reasoning capabilities of DeepSeek R1 model into claude desktop app.

updated Apr 2026

rhinoMcpServer

52
@always-tinkering

RhinoMCP connects Rhino to Claude AI through the Model Context Protocol (MCP), enabling AI-assisted 3D modeling and architectural design.

updated May 2026

mcp-gitlab-server

52
@yoda-digital

Production-grade GitLab MCP server with 86 tools — full GitLab control from any AI agent (Claude, Cursor, Zed).

updated May 2026

mcp-zen

52
@199-mcp

Enhanced Zen MCP Server with 'zen' default tool and improvements

updated Apr 2026

mcp

52
@supadata-ai

Official Supadata MCP Server - Adds powerful video & web scraping to Cursor, Claude and any other LLM clients.

updated May 2026

codex-mcp-go

52
@w31r4

codex-mcp-go is a Go-based MCP (Model Context Protocol) server that serves as a bridge for Codex CLI, enabling various AI coding assistants (such as Claude Code, Roo Code, KiloCode, etc.) to seamlessly collaborate with Codex.

updated May 2026

ClaudeCodeBrowser

52
@nanogenomic

MCP Firefox browser automation extension for Claude Code - screenshots, clicking, typing, page refresh, and AI-powered web interaction

updated May 2026

ue5-mcp

52
@mirno-ehf

Let AI edit your Unreal Engine Blueprints. MCP server plugin for Claude Code — describe what you want in plain English.

updated Jun 2026

eidos

52
@agenticnotetaking

Spec Driven Development - claude code plugin - Sync between intent and implementation

updated May 2026

x64dbg_mcp

52
@bromoket

MCP server for x64dbg — 152 AI-powered debugging tools. Works with Claude, Cursor, Windsurf, Cline. Reverse engineering with AI.

updated May 2026

claude-context-optimizer

52
@egorfedorov

Claude Code plugin that tracks token usage, identifies wasted context, and saves 30-50% on API costs. Heatmaps, ROI reports, budget alerts, efficiency scores, git-aware suggestions — all local, zero config.

updated May 2026
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