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MCPMonkey

AI Agent Browser Extension

What is MCPMonkey?

MCPMonkey is a fork of Violentmonkey, extending its powerful userscript capabilities to support Model Context Protocol (MCP) servers. This project bridges the gap between AI language models and browser interactions.

Quick Start

  1. Add npx mcpmonkey-server to Cursor (Settings > Features > MCP Servers)
  2. Install the Firefox browser extension
  3. Click here to install the page style extractor userscript

Try it: Browse to a website and ask Cursor: "get the page styles and apply it to my project"

Key Features

  • Tab Management: Get information about open tabs, create new tabs, close tabs, activate tabs, and duplicate tabs
  • Page Style Extraction: Extract styling information from web pages for AI analysis with structured JSON data
  • User Script Support: Full compatibility with existing userscripts (inherited from Violentmonkey)
  • Cursor Integration: Full support for Cursor's MCP integration (v0.45.7+)

Coming Soon

One of our most exciting planned features is Custom MCP Scripts. These special.mcp.js files will let you create website-specific tools that AI assistants can use to interact directly with web applications. Imagine giving your AI assistant custom abilities for your favorite websites - from filling forms to extracting data or navigating complex interfaces!