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

8237entries
★ starsA–Z name

ads-mcp

70
@amekala

MCP server for managing ad campaigns across Google Ads, Meta Ads, LinkedIn Ads, and TikTok Ads. 100+ tools for campaign creation, performance analysis, keyword research, and budget optimization. Works with ChatGPT, Claude, Gemini CLI, Cursor, Codex, and Windsurf.

updated Jul 2026

sawyer-mart

70
@SawyerHood

Claude Code plugin marketplace

updated Mar 2026

beagle

70
@existential-birds

Agent Skills marketplace: framework-aware skills for code review, documentation, test-plan generation, AI-writing detection, architectural analysis, and git workflows — for Python, Go, Rust, Elixir, React, Remix, and iOS/Swift. Works with Claude Code, Codex, and any agent that supports Agent Skills.

updated Jul 2026

skill-algotrader

70
@javajack

Quantitative trading skill for Indian equity markets with Zerodha integration. Generate trading bots, fetch live index data, and manage risk with Claude Code.

updated Jul 2026

legion

70
@9thLevelSoftware

Multi-CLI plugin that orchestrates 49 AI agent personalities (start → plan → build → review → ship) across Claude Code, Codex, Cursor, Copilot, Gemini, Antigravity, Kiro, Windsurf, OpenCode, Kilo, Aider + Kilo Code.

updated Jul 2026

claude-brain

70
@toroleapinc

Sync your Claude Code brain across machines — memory, skills, agents, rules, and settings with intelligent semantic merge. Git-based, auto-sync hooks.

updated Jul 2026

multi-cli

70
@Spielewoy

Launch multiple sandboxed profiles of any AI CLI or IDE - each with its own auth, config, and extensions.

updated Jul 2026

claude-power-tools

70
@Matt-Hulme

Skills that make Claude Code proactively suggest its own power tools - workflows, goals, loops, hooks - at the right moment

updated Jul 2026

harness-forge

70
@001TMF

Turn Claude Code into its own Meta-Harness — a skill that evolves the scaffolding around a fixed model (memory, retrieval, context, prompts) via a native propose→score→Pareto loop. Native reimplementation of Meta-Harness (Lee et al. 2026).

updated Jul 2026

san

69
@genai-io

Fast, open agent harness for the terminal. One ~12 MB Go binary — bring any model and extensions into a single inspectable loop that learns as you work.

updated Jul 2026

MCP-server-Deepseek_R1

69
@kamelirzouni

A Model Context Protocol (MCP) server implementation connecting Claude Desktop with DeepSeek's language models (R1/V3)

updated Jun 2026

deepseek-thinker-mcp

69
@ruixingshi

A MCP provider Deepseek reasoning content to MCP-enabled AI Clients, like Claude Desktop. Supports access to Deepseek's CoT from the Deepseek API service or a local Ollama server.

updated May 2026

whatsapp-mcp-ts

69
@jlucaso1

WhatsApp MCP Server (TypeScript/Baileys)

updated Jul 2026

mcp-server-okppt

69
@NeekChaw

这个项目是一个基于MCP (Model Context Protocol) 的服务器工具,名为 "MCP OKPPT Server"。它的核心功能是允许大型语言模型(如Claude、GPT等)通过生成SVG图像来间接设计和创建PowerPoint演示文稿。工具负责将这些SVG图像高质量地插入到PPTX幻灯片中,并保留其矢量特性,确保图像在PowerPoint中可缩放且清晰。

updated Jul 2026

PACT-Plugin

69
@Synaptic-Labs-AI

Claude Code Agentic Harness

updated Jul 2026

apple-notes-mcp

69
@sweetrb

MCP server for Apple Notes - create, search, update, and manage notes via Claude and other AI assistants

updated Jul 2026

delphi-dev

69
@adrianosantostreina

Delphi development expert plugin for Claude Code — automatically applies Delphi Style Guide, Clean Code and SOLID patterns

updated Jul 2026

OpenStudy

69
@OpenStudy-dev

Self-hostable study dashboard with a built-in MCP server, so that your Claude/ChatGPT subscription becomes x10 more effective for your semester

updated Jul 2026

Auto-Research-Skills

69
@brycewang-stanford

A curated hub of autonomous-research skills & agents — from idea to paper, on autopilot. | 自主科研技能与智能体精选库 —— 从灵感到论文全文,全程自动完成。

updated Jul 2026

claude-quota

69
@grzegorz-raczek-unit8

Menu bar gauges for Claude Code quota (SwiftBar plugin)

updated Jul 2026

mcp-vercel

68
@nganiet

MCP server connecting Claude to Vercel

updated May 2026

shannon-thinking

68
@olaservo

MCP server for applying a Claude Shannon-inspired problem-solving pattern

updated Jul 2026

claude-memory-mcp

68
@WhenMoon-afk

Local Memory MCP Server

updated Jun 2026

metabase-mcp

68
@hluaguo

Metabase MCP server provides integration with the Metabase API, enabling LLM with MCP capabilites to directly interact with your analytics data, this server acts as a bridge between your analytics platform and conversational AI.

updated Jul 2026
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