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

8245entries
★ starsA–Z name

claude_sat_solver

1
@mbrotos

Using Anthropic's Claude 3 Opus to solve SAT problems with symbolic tool use.

updated Nov 2024

crewai-anthropic-similar-company-finder

1
@sanjanabatheja123

🤖 Discover and connect with similar companies using the CrewAI Anthropic Similar Company Finder, a powerful tool for enhancing business insights.

updated Aug 2026

mcp-wait-timer

1
@199-mcp
updated Nov 2025

claude-llm-tools

1
@gmr

A library for auto-generating JSON Schema and dispatching tool calls in applications that use the Anthropic API to interact with Claude.

updated Aug 2025

quantok

1
@brojor

CLI tool for fast token counting using Anthropic Claude models. Inspired by Unix wc, perfect for developers working with LLM prompts.

updated Mar 2026

-llm-music-composer-docs

1
@kdleezy

LLM-powered music composition tool using Anthropic's Claude and Music21.

updated Jun 2026

remote-mcp-server-authless-andor

1
@elizabethsiegle

Remote MCP server to summarize/scrape Andor season 2 episodes using Browser Rendering and Workers AI

updated May 2025

remote-mcp-server-authless-gif-search

1
@elizabethsiegle
updated Jun 2025

mcp-openai-image

1
@199-mcp
updated Jun 2026

mcp-servers-list

1
@199-mcp

📋 Comprehensive list of Model Context Protocol (MCP) servers for Claude and AI tools

updated May 2026

claude-code-customizer

1
@hikarubw

Tools to customize Claude Code VSCode extension - automatically resume sessions and more

updated Jul 2025

AdvanceClaudeCodeAgent-with-Anthropic-api-Key

1
@Anakintano

Build an intelligent AI agent 🤖 that can generate, execute, and validate Python code live — using LangChain, Anthropic's Claude API, and a custom REPL tool. Perfect for automated data analysis, algorithm testing, and ML workflows. Comes with built-in validation, detailed examples, and full execution tracking. 🚀

updated Jun 2025

vscode-extension-claude-code-usage-monitor

1
@usabarashi

A VSCode extension for monitoring Claude Code token usage with smart baseline tracking and real-time status display.

updated Jan 2026

secondary-terminal

1
@ytyng

A VSCode extension that displays a multi-tab terminal. It is primarily designed with a strong focus on running development agents such as Claude Code.

updated Aug 2026

enterprise-claude-gtp-tool

1
@anilatambharii

This project demonstrates how to build an enterprise-grade Generative Task Processing (GTP) tool by integrating Anthropic's Claude AI with a full-stack architecture. The repo includes API integration, backend, frontend, database design, and advanced features like prompt memory and session management

updated Oct 2025

promptlang-app

1
@simonpierreboucher02

PromptLang is a minimalist search engine for exploring, understanding, and testing AI prompts. It serves as a reference tool for discovering high-quality prompts for various AI models, with built-in testing capabilities and admin management.

updated Jun 2026

MCP-Server-Tutorial

1
@DazzleML

A detailed hands-on tutorial for learning Model Context Protocol (MCP) server development with Python. Includes working examples, VSCode debugging setup, tests, and a step-by-step guide covering everything from basic architecture to deployment. Perfect for anyone wanting to build AI-integrated tools and to understand how Claude extensions work.

updated Nov 2025

cc-mcp-command-generator

1
@Riti0208

Chrome extension for easily generating Model Context Protocol (MCP) commands for Claude Code

updated Jul 2025

Goo-code

1
@francisgreenleaf

A Go-based chat agent using the Anthropic Claude API with advanced tool calling capabilities and conversation management

updated Oct 2025

vscode-extension-claude-code

1
@maskzh

A VS Code extension that launches multiple Anthropic-compatible AI terminals.

updated Feb 2026

replit-mcp-extension

1
@jabberlockie

Replit MCP Server Extension for Claude Code integration

updated Sep 2025

jupyterlab-claude-code-refresh

1
@wenatuhs

Jupyter lab extension that auto-refreshes notebooks when modified by Claude Code (or whatever)

updated Sep 2025

nofx-vscode

1
@benfinklea

VS Code extension for orchestrating multiple Claude Code AI agents in parallel

updated Nov 2025

claude-code-vscode-patcher

1
@jimmystridh

A tool to patch the Claude Code VS Code extension to automatically inject command-line arguments like --dangerously-skip-permissions when launching Claude Code

updated Feb 2026
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