Cua Developers

Open-source computer-use automation for real machines and isolated desktops.

Choose your path

Start with Cloud Fleets for hosted desktops, Cua Driver to control an app, Lume to create a local macOS VM, or Cua-Bench to evaluate an agent. Each tutorial includes its own prerequisites.

Your first Cloud Fleet Drive your first app with Cua Driver Create a local macOS VM with Lume Build your first Cua-Bench task

Cloud Fleets

Provision hosted desktops through pools and claims, then connect your application with the Sandbox SDK.

Explore Cloud Fleets

Cua Driver

Run native desktop apps in the background through MCP, CLI, or a long-running driver daemon.

Start with a real app

Cua-Bench

Define verifiable computer-use tasks, run agents across environments, and score their trajectories.

Evaluate an agent

How sandboxes work

Understand isolated computers, sandbox connections, and the differences between local execution and Fleet.

Understand the stack

Cua Driver in action

See agents work with desktop apps across macOS, Windows, and Linux.

macOS foreground examples

Real desktop workflows with GPT-6 Astra + Cua Driver

Build map layouts, review PDFs, and edit designs in desktop apps.

Recorded on macOS with GPT-6 Astra + Cua Driver. Selected gestures play at 1x; setup, waits, retries and intervening edits are cut. These examples include foreground/desktop input and fictional data. Clip duration is not task completion time.

Build and inspect a map Redact and annotate a PDF Prepare an exhibition panel

Windows and Linux background examples

Agents build and inspect desktop apps on Windows and headless Linux while the developer keeps control of the active desktop.

Build and check a WPF app on Windows

Claude Code builds a WPF CRM, runs it, patches the code, and checks the app again.

View the original post on X

Fill a Linux spreadsheet over SSH

An agent enters a monthly budget in Gnumeric on a remote machine with no attached display or GPU.

View the original post on X

Featured resources

Guides, posts, and release notes from Cua.

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Guide

Your first Cloud Fleet

Create a pool, acquire a claim, connect to a hosted desktop, and clean up when you finish.

Start the guide

Infrastructure

Create a local macOS VM with Lume

Create and run a macOS VM on an Apple Silicon Mac through the Lume CLI.

Create your first VM

Blog

Apple Silicon and macOS VMs: 11–16× Faster LLM Inference with llama.cpp

A process-scoped Metal capability shim unlocks newer GPU paths inside a Lume macOS VM, making llama.cpp prompt processing up to 11×...

Read the latest post

Changelog

Week of May 18, 2026

Release notes and platform changes from the week of May 18, 2026, including computer_server bind defaults.

View release notes

Examples

Practical workflows for lifecycle, secrets, ports, images, and agent work, with local and Fleet prerequisites.

Browse examples

Sandboxes & Fleets

Look up the shared Python Sandbox API for local connections and Fleet claims. Runtime and image support differ.

Explore the Python Sandbox SDK

Cua CLI

Find commands for authentication, sandbox operations, and the Cua CLI MCP server.

Look up CLI commands