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

us-gov-open-data-mcp

104
@lzinga

MCP server + TypeScript SDK for 40+ U.S. government data APIs — 250+ tools. Treasury, FRED, Congress, FDA, CDC, FEC, lobbying, and many more. Works with VS Code Copilot, Claude Desktop, Cursor.

updated Jul 2026

resale-agent-skill-hub

104
@madguyevans-creator

AI-powered multi-platform C2C resale toolkit — 8 Claude Code skills + MCP server for automating second-hand selling

updated Jul 2026

cinema4d-mcp

103
@ttiimmaacc

Cinema 4D plugin integrating Claude AI for prompt-driven 3D modeling, scene creation, and manipulation.

updated Jul 2026

lapras-mcp-server

103
@lapras-inc

lapras.com 公式MCP Server

updated Jul 2026

mcp-server

103
@cap-js

MCP server for AI-assisted development of CAP applications

updated Jul 2026

smileyCoin

103
@fefergrgrgrg

simple web ui to manage mcp (model context protocol) servers in the claude app

updated Apr 2026

tauri-plugin-mcp

103
@P3GLEG

Allows AI agents (e.g., Cursor, Claude Code) to debug within Tauri apps via screenshot capture, window management, DOM access, and simulated user inputs.

updated Jul 2026

systemprompt-mcp-server

103
@systempromptio

[DEPRECATED] Superseded by systempromptio/systemprompt-template and systempromptio/systemprompt-core. Reference MCP server implementation (OAuth 2.1, tools, prompts, resources, sampling, notifications).

updated Jun 2026

medical-mcp

103
@JamesANZ

An MCP server that provides comprehensive medical information by querying multiple authoritative medical APIs including FDA, WHO, PubMed, Google Scholar, and RxNorm

updated Jul 2026

signoz-mcp-server

103
@SigNoz

MCP Server for SigNoz

updated Jul 2026

deep-plan

103
@piercelamb

Claude Code plugin that transforms vague requirements into detailed implementation plans via research, interviews, and multi-LLM review.

updated Jul 2026

creative-director-skill

103
@smixs

World-class creative director in a skill. Methodology-driven ideation (SIT, TRIZ, Lateral Thinking, bisociation) + a Cannes Lions evaluation engine, powered by a library of 571 legendary award-winning cases.

updated Jul 2026

thebrain

103
@Advenire-Consulting

A Claude Code plugin that gives your AI persistent memory, code awareness, safety guardrails, and a behavioral system that learns how you work

updated Jun 2026

cve-search_mcp

102
@roadwy

A Model Context Protocol (MCP) server for querying the CVE-Search API

updated Jul 2026

ebay-mcp

102
@YosefHayim

Local MCP server that exposes eBay Sell APIs to AI assistants with OAuth, tool gating, and stdio/HTTP transports.

updated Jul 2026

nothumanallowed

102
@adoslabsproject-gif

Security-first platform for AI agents. 38 specialized agents, 15 AI-powered extensions, zero-knowledge multi-agent orchestration. SENTINEL WAF, Ed25519 auth, 2.6M grounding facts.

updated Jul 2026

open-scholar-skill

102
@joshzyj

Open scholar skill, a claude code plugin, for academic research

updated Jul 2026

Pepper

102
@skwallace36

iOS dynamic library MCP for agents

updated Jul 2026

claude-antigravity-agents

102
@markfulton

A Claude Code skill that delegates coding, review, analysis, and research jobs to Google Antigravity CLI (agy) sub-agents — save tokens, use a second model, work in parallel.

updated Jul 2026

mcp-canvas-lms

101
@DMontgomery40

Version 2.2 - 54 tools available - an MCP server for interacting with the Canvas LMS API. This server allows you to manage courses, assignments, enrollments, and grades within Canvas.

updated Jul 2026

sample-agentic-ai-demos

101
@aws-samples

Collection of examples of how to use Model Context Protocol with AWS.

updated Jun 2026

mcp-python-interpreter

101
@yzfly

MCP Python Interpreter: run python code. Python-mcp-server, mcp-python-server, Code Executor

updated Jul 2026

lazy-mcp

101
@voicetreelab

MCP proxy server with lazy loading support - reduces context usage through on-demand tool activation

updated Jul 2026

ai-driven-development

101
@CodeAlive-AI

Practices, protocols, and skills for AI-driven software development. Skills and safety hooks for Claude Code, Codex, OpenCode, Cursor, Antigravity, and any agent supporting the Agent Skills standard.

updated Jul 2026
← PREV01...9495969798...344NEXT →