# ace: Stop babysitting your agents.

> ace runs your agents on many tasks at once, across all your machines. They hand work to each other and call you only when a decision is yours.

ace is a free, open-source app that runs your coding agents as one team on Mac, Windows and Linux, with ace for iPhone and iPad to follow and steer them (Android is coming soon). It drives the agent CLIs you already have logged in (Claude Code, Codex, Cursor, OpenCode, Antigravity, Pi and any ACP agent), so many tasks run at once, each in its own thread and, if you like, its own git worktree with a built-in diff review. Any agent can hand work to agents on other providers and on your other machines, and a thread shows as done only when every agent under it has finished. Agents get one MCP toolset in every CLI: they delegate to and wait on other agents, use a real browser, operate desktop apps through computer use, and test on iOS Simulators and Android emulators, including ones on another of your machines. Sign in to several accounts per provider and move a thread to another when one hits its limit. Sign in to an ace account and every machine on it opens from your phone, browser or other computers, from anywhere, through an end-to-end encrypted relay.

## Key facts

- ace is a free, open-source (Apache-2.0) desktop app for Mac, Windows and Linux, with apps for iPhone and iPad.
- ace runs the coding-agent CLIs you already use: Claude Code, Codex, Cursor, OpenCode, Antigravity, Pi and any Agent Client Protocol (ACP) agent.
- ace never asks for, stores or proxies provider credentials; each agent signs in through its own CLI, on your existing subscription.
- In ace, any agent can delegate work to agents on other providers, for example Claude Code handing a task to Codex, and wait for the results.
- Agents in ace can start threads and use browsers, iOS Simulators and Android emulators on your other linked machines.
- A thread in ace is done only when every agent and background command under it has finished; it shows when any of them needs you.
- ace supports several accounts per provider and moves a thread to another account when one reaches its usage limit.
- Every agent in ace gets the same MCP tools: delegation, a real browser, computer use, simulators and emulators, and automations.
- Each ace thread can work in its own git worktree, with a diff review beside the conversation.

## How it works

### Many tasks, all at once

Start a thread for every task, with any agent. Each row shows what it is doing right now, and the one that needs you stands out.

More: https://acehq.dev/features/status/

### Agents hand work to each other

Claude fixes the server and hands off the rest: Codex writes the test, Cursor reviews the change, and the soak test goes to your Linux server. The thread isn't done until all of them are.

More: https://acehq.dev/features/orchestration/

### Every machine works at once

The soak test runs on the build server while your Mac keeps going. Threads from every machine share one list, wherever you open ace.

More: https://acehq.dev/features/fleet/

### Devices go where the agent is

An agent on the build server has no iPhone, so it borrows the Simulator on your Mac. You allow it once and can take over at any time.

More: https://acehq.dev/features/devices/

### Limits don't stop the work

When one account runs out, move the thread to another and it picks up where it stopped. Work a restart cut short carries on by itself.

More: https://acehq.dev/features/accounts/

### Answer from your phone

Step away. Your phone shows when the whole team has finished, and approvals arrive on the lock screen.

More: https://acehq.dev/features/mobile/

## Get ace

- [Download for Mac](https://github.com/arpan404/ace/releases/download/v0.0.19/ace-0.0.19-arm64.dmg): ace 0.0.19 for macOS on Apple silicon, 239 MB
- [Download for Windows](https://github.com/arpan404/ace/releases/download/v0.0.19/ace-0.0.19-x64-setup.exe): ace 0.0.19 for Windows on x64, 208 MB
- [Download for Linux](https://github.com/arpan404/ace/releases/tag/v0.0.19): the latest release page, for Linux on x64 (AppImage)
- [Source code on GitHub](https://github.com/arpan404/ace): Apache-2.0

Page: https://acehq.dev/