Plain-AyI
← All projects
AI agents

Cua

Gives AI agents their own computer desktops to work in, plus tools for controlling apps on your machine.

What it does

Cua is a set of tools for "computer use", where an AI agent operates a computer the way a person does: opening apps, clicking and typing. Its main app, Cua Spaces, gives agents full desktops as virtual machines (computers running inside your computer) on your Mac, on other machines you own, or in your own cloud account.

You and your agents can share the same desktop, each with your own cursor, so you can step in when a decision is needed. You can move a signed-in app like Chrome into a Space, and your logins stay encrypted on your Mac until you approve.

The project also includes Cua Driver for controlling desktop apps on Mac, Windows and Linux, Lume for creating virtual machines on Apple Silicon Macs, small specialised AI models, and tests for measuring how well agents perform.

Who it's for

Developers and researchers building AI agents that need to operate real software safely.

Can I use it without coding?

With some setup. Cua Spaces has a Mac installer (macOS 26 or later); connecting agents needs some technical setup. New to this? Start here.

Can I run it?

Cost
Free, with optional paid extrasThe open-source version is free; the makers also sell a hosted or pro version.
Runs on
Mac, Windows, Linux, Cloud
Privacy
Your choice: run it on your device or use an online service
API key
Not needed

Try it

  1. On a Mac running macOS 26 or later, download the Cua Spaces app from the releases page.
  2. Follow the quickstart to create your first Space, a desktop for your agent.
  3. Connect your own AI agent, such as Claude Code or Codex.
Official download page

Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?

Before you install

  • Only download from the official GitHub page or the official download page above. Copies with similar names exist for many popular projects.
  • License (MIT): Very permissive: free to use, change and share, including for business.
  • More on staying safe

Where people are talking about it