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computer-use-mcp

computer-use-mcp

MCP.Pizza Chef: domdomegg

The model takes a screenshot, moves the pointer, clicks, and types, much as a person sitting at the keyboard would. Installing it is a short snippet generated by a helper page for Claude Desktop, Claude Code, Cursor, Cline, VS Code, and others, with no account or paid key required. The author is blunt about the danger: something with this much power over your machine can do real damage if it misreads a page, so watch it closely or give it a separate user account. Still actively developed.

Other
Web/Research

Use This MCP server To

Change my desktop background without touching the mouse Click through a website that has no keyboard shortcuts Fill in a long form on screen for me Watch the assistant work through a task step by step Copy something between two apps that will not talk

README

computer-use-mcp

💻 A Model Context Protocol server for Claude to control your computer. This is very similar to computer use, but easy to set up and use locally.

Here's Claude Haiku 4.5 changing my desktop background (4x speed):

computer-use-changes-desktop-background.mov

Warning

At time of writing, models make frequent mistakes and are vulnerable to prompt injections. As this MCP server gives the model complete control of your computer, this could do a lot of damage. You should therefore treat this like giving a hyperactive toddler access to your computer - you probably want to supervise it closely, and consider only doing this in a sandboxed user account.

Installation

Follow the instructions on install-mcp, which generates the right config for your MCP client (Claude Code, Claude Desktop, Cursor, Cline, VS Code, and more).

Tips

This should just work out of the box.

However, to get best results:

  • Use a model good at computer use - I recommend the latest Claude models.
  • Use a small, common resolution - 720p works particularly well. On macOS, you can use displayoverride-mac to do this. If you can't use a different resolution, try zooming in to active windows.
  • Install and enable the Rango browser extension. This enables keyboard navigation for websites, which is far more reliable than Claude trying to click coordinates. You can bump up the font size setting in Rango to make the hints more visible.

How it works

We implement a near identical computer use tool to Anthropic's official computer use guide, with some more nudging to prefer keyboard shortcuts.

This talks to your computer using nut.js

Contributing

Pull requests are welcomed on GitHub! To get started:

  1. Install Git and Node.js
  2. Clone the repository
  3. Install dependencies with npm install
  4. Run npm run test to run tests
  5. Build with npm run build

Releases

Versions follow the semantic versioning spec.

To release:

  1. Use npm version <major | minor | patch> to bump the version
  2. Run git push --follow-tags to push with tags
  3. Wait for GitHub Actions to publish to the NPM registry.

computer-use-mcp FAQ

Is this still maintained?
Yes, actively — changes were still landing in August 2026.
Is it safe to let an assistant run my computer?
Treat it carefully. The author compares it to handing a hyperactive toddler your keyboard and suggests a separate, sandboxed user account.
Which apps does it work with?
Claude Desktop, Claude Code, Cursor, Cline, VS Code, and other assistants that read a standard MCP settings file.
Do I need a paid key?
No. You paste in a small snippet and it runs on your own machine.
Can I use this to change a setting buried deep in a menu?
Yes — it can open the menu, click through it, and type whatever the setting needs.
Any tips for better results?
Use a smaller screen resolution such as 720p and add a browser extension that puts keyboard hints on links.
How hard is setup?
Easy by the standards of this category. A helper page writes the settings snippet for your app and you paste it in.