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

8239entries
★ starsA–Z name

windbg-mcp

37
@memoryforensics1

C# MCP server for kernel & user-mode Windows debugging — DbgEng COM, KDNET, Frida, dbgsrv, TTD, and integrated VM control. 29 tools for LLM agents.

updated Jul 2026

BridgeWard

37
@bridge-mind

Trust nothing. Ship safely. — Skeptical-reading and prompt-injection defense skill for AI agents. Provenance tagging, red-flag patterns, refusal templates, and a read-only injection auditor. MIT.

updated Jul 2026

brown-claude-marketplace

37
@kimyoon21

Productify — Claude Code plugin for product form decision and roadmap design

updated Jul 2026

flac-mcp

37
@yusong652

MCP server connecting AI agents to ITASCA FLAC — run continuum simulations through natural conversation

updated Jul 2026

html-to-editable-pptx

37
@Hasasasa

Convert HTML slide decks to truly editable PPT / .pptx - text stays native PowerPoint textboxes, not screenshots. Agent Skill (Claude Code / Cursor / Codex / opencode) + plain Python CLI.

updated Jul 2026

MCPNotes

36
@9Ninety

A simple note-taking MCP server for recording and managing notes with AI models.

updated Apr 2026

mcp-optionsflow

36
@twolven

An MCP server providing advanced options analysis through Yahoo Finance, supporting Greeks calculations, strategy evaluation (CCS/PCS/CSP/CC), and risk metrics. Built for MCP with Claude.ai.

updated Jul 2026

figma-mcp-server

36
@karthiks3000

Claude MCP Server to work with figma

updated Mar 2026

mcp-server-text-editor

36
@bhouston

An open source implementation of the Claude built-in text editor tool

updated Jul 2026

google-search-console-mcp

36
@surendranb

Google Search Console MCP Server for Claude, Cursor, Windsurf and other MCP Clients

updated Jul 2026

mcp-server

36
@DollhouseMCP

A Free, Open Source MCP server for dynamic custom persona management with public a GitHub collection of personas, skills, templates, and other elements for AI models.

updated Jul 2026

scrivener-mcp

36
@writerslogic

The definitive MCP server for Scrivener — connect your novels, screenplays, and manuscripts to Claude, ChatGPT, and any AI assistant. 53 tools: document management, writing analysis, content enhancement, offline semantic search, and character/plot tracking.

updated Jul 2026

openalex-research-mcp

36
@oksure

MCP server for the OpenAlex API — search 240M+ scholarly works, analyze citations, track research trends, and map collaboration networks

updated Jul 2026

cortexgraph

36
@prefrontal-systems

Temporal memory system for AI assistants with human-like forgetting curves. All data stored locally in human-readable formats: JSONL for short-term memory, Markdown (Obsidian-compatible) for long-term. Memories naturally decay unless reinforced. Features knowledge graphs, smart prompting, and MCP server integration for Claude.

updated May 2026

claude-for-chrome

36
@cocodem

Open Claude in Chrome extension. No Claude account or waitlist is required. Simply use your own API key to get instant access.

updated Jul 2026

ai-helpers

36
@opendatahub-io

AI Helpers — collections of Skills, Hooks, Agents (compatible with Claude Code, Cursor and other tools) and Gemini Gems

updated Jul 2026

cc-switch-web

36
@cp-yu

All-in-One AI CLI Management Platform for Claude Code, Codex & Gemini - Provider switching, MCP servers, Skills, Prompts management. Now with Web UI for headless/SSH environments.

updated Jul 2026

paper-fetcher

36
@fermionoid

Academic paper full-text fetcher - MCP server for Claude Code with Open Access, arXiv, and EZproxy support

updated Jun 2026

Kiln

36
@codeofaxel

Describe it or draw it — Kiln makes it real. The open-source MCP server for 3D printing: AI agents (Claude, Codex, Cursor, or any MCP client) design, generate, slice & print on Bambu Lab, Prusa, Creality, Klipper/Moonraker, OctoPrint, Elegoo & any Marlin printer.

updated Jul 2026

claude-playbook

36
@smartwhale8

Production-ready .claude/ scaffolding for enforcing professional software engineering standards with Claude Code. Rules, skills, agents, and hooks — ready to use as a GitHub template.

updated Jul 2026

agentify

36
@MonadWorks

Agent Interface Compiler — One command. Every agent speaks your product. Transform OpenAPI specs into MCP Servers, Skills, CLAUDE.md, AGENTS.md, and more.

updated Jul 2026

win-hooks

36
@LilMGenius

Linux? Nah. WinUX! ✴ Auto-patches Claude Code plugin hooks for Windows compatibility

updated Jul 2026

cre-skills-plugin

36
@mariourquia

100+ institutional-grade CRE skills for Claude Code, Desktop, and Cowork. Deal screening, underwriting, structuring, capital markets, asset management, leasing, investor relations, development, disposition, and daily ops. 50+ expert agents, 12+ Python calculators, 10+ orchestrator pipelines, catalog-driven routing.

updated Jul 2026

Aurakit

36
@smorky850612

One command. Full stack. Zero compromise. — All-in-one Claude Code skill with 33 modes, 6-layer security, 23 hooks, and 75% token savings. Works on Codex, Cursor, Manus, Windsurf.

updated Jul 2026
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