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

8241entries
★ starsA–Z name

writing-with-agents

26
@Jeffallan

Claude Code skill plugin implementing Betty Flowers' Madman-Architect-Carpenter-Judge writing framework with collaborative AI-human oscillation, SEO optimization, and multi-article content strategy.

updated Jul 2026

claude-tts

26
@MatiousCorp

Text-to-speech plugin for Claude Code — multi-provider support (ElevenLabs, OpenAI, Google, Amazon Polly, Azure, Kitten, local system TTS) on macOS, Linux, and Windows

updated Jul 2026

cameo-mcp-bridge

26
@ajhcs

MCP server bridging AI assistants to CATIA Magic / Cameo Systems Modeler for SysML/UML model creation, querying, and manipulation

updated Jul 2026

nutrition-mcp

26
@akutishevsky

A remote MCP server for personal nutrition tracking — log meals, track macros, and review nutrition history through conversation.

updated Jul 2026

freematters

26
@freematters

Agent-native developer tools — CLI plugins for AI coding agents

updated Jul 2026

mcp-video-analyzer

26
@guimatheus92

MCP server that turns any video — YouTube, Instagram, TikTok, Loom, X, Vimeo, direct URLs, local files — into transcripts, key frames, OCR text, and metadata for AI agents.

updated Jul 2026

morph-claude-code-plugin

26
@morphllm

Morph plugin for Claude Code

updated Jul 2026

claude-config-editor

26
@jung-wan-kim

Visual Config Editor for Claude Code - Drag & Drop Hook Pipeline, Agent Workflow, Skill/Rule Editor

updated Jul 2026

applenotesmcp

26
@RodriguesJohn

An MCP (Model Context Protocol) server that lets AI assistants like Claude read, create, search, update, and delete your Apple Notes all through natural conversation.

updated Jul 2026

godmode

26
@arbazkhan971

Autonomous AI coding agent — 126 skills, 7 subagents, 5 platforms. Iterative optimization with automatic rollback, failure memory, and parallel multi-agent execution. Plugin for Claude Code, Cursor, Codex, Gemini CLI, OpenCode.

updated Jul 2026

claude-combine

26
@BinyaminEden

Unified Claude Code plugin merging superpowers + everything-claude-code

updated Jul 2026

QGIS-Claude-Skill-Package

26
@Impertio-Studio

19 deterministic Claude Code skills for QGIS/PyQGIS spatial analysis, map creation, geoprocessing, and plugin development

updated Jul 2026

OpenLtm

26
@RohiRIK

Long-Term Memory plugin for Claude Code — semantic search, context injection, session learning

updated Jun 2026

grounded-research-skill

26
@arturseo-geo

Anti-hallucination research skill for Claude Code — admits uncertainty, extracts direct quotes before analysis, cites every claim, retracts unverifiable statements. Based on Anthropic's official guardrail techniques. By TheGEOLab.net

updated Jul 2026

mcp-unifi-applications

26
@KallistoX

An MCP server that exposes UniFi application API documentation (Network, Protect, Site Manager) as queryable tools for Claude Desktop, Claude Code (VS Code / JetBrains), or any MCP-compatible client.

updated Jul 2026

thunderbird-cli

26
@vitalio-sh

Give Claude full access to your email through Mozilla Thunderbird. CLI + MCP server for AI agents.

updated Jul 2026

claude-hooks

26
@mann1x

Cross-platform Claude Code hooks for deterministic memory recall (Qdrant + Memory KG, pgvector, sqlite-vec) with HyDE, attention decay, dedup, instinct extraction, and OpenWolf integration

updated Jul 2026

slides-ai-plugin

26
@proyecto26

Slides AI Plugin for Claude, OpenClaw, etc that turns any idea into a full presentation — animated HTML or editable PowerPoint — from a single prompt

updated Jul 2026

agent-room

26
@agent-room-alkl

Multi-agent collaboration rooms for Claude Code, Cursor, Codex & Gemini — distributed dev, code review, PR handoff, FE↔BE integration. MCP-native, self-hostable.

updated Jul 2026

auto-audit

26
@wrxck

Autonomous Claude Code plugin that audits a GitHub repo, triages findings, fixes in PRs, and independently reviews before merging.

updated May 2026

rosetta

26
@SyntaxSmith

Programmatic access to ChatGPT (incl. Pro) by translating between an auth-holder Chrome page and a Node API. CDP Fetch interception + WebSocket second-leg streaming. Ships an MCP server for Claude Code / Codex / Cline.

updated Jul 2026

mcp-ads-arxiv

26
@estevesjh

MCP server for Claude: Read scientific papers from LaTeX source, not PDFs. NASA ADS search + arXiv + local library. Built for astrophysics research.

updated Jun 2026

behavior-question-skill

26
@yanliudesign

Claude skill for behavioral interview prep — mine real experiences, structure them with STAR/CAR, and build a reusable bilingual story bank. JD-driven mode reverse-engineers a Top 20 question set from any JD.

updated Jul 2026

openai-copilot

25
@feiskyer

Your life Copilot powered by LLM models (CLI interface for LLM models with MCP tools).

updated Feb 2026
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