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

ReactorUMG

41
@Caleb196x

ReactorUMG is a helper plugin for Unreal Engine that lets you build UMG game UI and editor UI using React.

updated May 2026

pdca-framework

41
@kenjudy

Human-supervised AI code generation using Plan-Do-Check-Act methodology with TDD and refactoring. Works as Claude Code skill or standalone prompts.

updated May 2026

llm-use

41
@llm-use

LLM orchestration toolkit for agent workflows: planner + workers + synthesis, optional router (LLM + learned fallback), supports OpenAI/Anthropic/Ollama/llama.cpp, real scraping with caching, MCP server integration, and a TUI chat UI.

updated May 2026

agent-mcp-gateway

41
@roddutra

Provides per-subagent MCP access controls to Claude Code (or any MCP client) across all your MCPs and prevents context window bloat. Loads only 3 tools instead of all your MCP Server's tool definitions. Agents discover tools on-demand, only when needed. Control which servers and individual tools each agent/subagent can access.

updated May 2026

mcp-wireshark

41
@khuynh22

An MCP server that integrates Wireshark/tshark with AI tools and IDEs. Capture live traffic, parse .pcap files, apply display filters, follow streams, and export JSON - all via Claude Desktop, VS Code, or CLI. Cross‑platform, typed, tested, and pip‑installable.

updated May 2026

Textum

41
@snakeying

Structured workflow that stops AI from forgetting your requirements. 4 phases with validation gates. Not smarter AI, just controllable process. Weave ideas into code that actually works.

updated Jun 2026

three.ws

41
@nirholas

Open-source 3D AI agent framework — GLB/glTF avatars with LLM brains, memory, emotions, and autonomous payments. MCP server · x402 · Solana/EVM · Three.js. Embed anywhere as a web component. Character studio, animation gallery, OAuth 2.1. Browser-native.

updated Jun 2026

choo-choo-ralph

41
@mj-meyer

A Claude Code plugin that adds structured, customizable workflow formulas to the Ralph loop. Built on Beads.

updated May 2026

UniClaudeProxy

41
@vibheksoni

Use any LLM with Claude Code — proxy that translates Anthropic API to OpenAI, Gemini, DeepSeek, Ollama, and more. Full tool calling, streaming, ReAct XML fallback, hot-reload config.

updated Jun 2026

Shiori-v1

41
@kaorii-ako

Open-source AI study companion — Google Classroom sync, Gemini AI plans, SRS flashcards, GPA predictor, AI quiz, MCP server for Claude Code. Try demo at shiori-v1.vercel.app

updated Jun 2026

claude-sbox

41
@gavogavogavo

Claude Code skill for s&box game development. Schema-verified API reference, 10 runnable examples, zero Unity hallucinations

updated May 2026

huntkit

41
@assafkip

Investigation toolkit for Claude Code: case management, OSINT, structured analytic techniques, chain-of-custody evidence capture, and bundled threat-intel MCP servers.

updated May 2026

flowforge-skill

41
@wentong2022-arch

Generate professional draw.io diagrams from natural language — a Claude Code skill

updated May 2026

tagore

41
@apurvrdx1

Make AI-generated prose sound human. 29-pattern catalog + 8-rule operating system + 8-dimension scoring rubric. Works with Claude Code, OpenCode, Copilot CLI, Codex, Gemini, Goose.

updated May 2026

Tokenless

41
@MaxForAI

One command to cut token usage by up to 50%+

updated Jun 2026

puppeteer-mcp-claude

40
@jaenster

Browser automation MCP server for Claude, powered by Puppeteer.

updated May 2026

datawrapper-mcp

40
@palewire

A Model Context Protocol (MCP) server and app for creating Datawrapper charts using AI assistants.

updated May 2026

claude-code

40
@nette

Official Claude Code plugins for Nette

updated May 2026

draft

40
@mayurpise

Context-Driven Development plugin for Claude Code, Cursor, GitHub Copilot, Gemini

updated May 2026

triliumnext-mcp

40
@perfectra1n

An MCP server for interacting with a Trilium instance

updated Jun 2026

kyc-analyst

40
@vyayasan

Open-source KYC/AML compliance automation. 17 human-in-the-loop checkpoints, free public data sources, deterministic risk scoring. Runs on Claude Cowork, Claude Code, or any Claude client.

updated May 2026

claude-code-local-for-vscode

40
@justimyhxu

Claude Code VS Code extension patched for Force Local mode — run CLI locally, proxy file ops to remote server via VS Code Remote SSH

updated May 2026

claude-agent-builder

40
@keysersoose

Build production-ready AI agents in Claude Code from natural language. Analyzes your problem, researches best practices, and generates subagents, skills, hooks, commands & MCP configs.

updated May 2026

claude-model-router-hook

40
@tzachbon

Claude Code hooks that auto-switch model tier based on task complexity

updated May 2026
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