Download OpenMausBot

Free and open source, for macOS, Windows, and Ubuntu. The harness is embedded, so there is nothing else to install — download it, paste the keys you already have, and meet your first bot.

MIT licensed · your own API keys · always the latest build

macOS

Apple silicon or Intel Mac

Apple silicon .dmgIntel .dmg

How to install

  1. 1

    Download the .dmg for your chip — Apple silicon for M-series Macs, Intel for anything older.

  2. 2

    Open the .dmg and drag OpenMausBot to your Applications folder.

  3. 3

    Open it from Applications. The build is signed and notarized, so macOS opens it without a Gatekeeper warning.

Windows

64-bit Windows

Download .exe

How to install

  1. 1

    Download the .exe installer.

  2. 2

    Run it. The installer needs no administrator rights.

  3. 3

    SmartScreen will warn about an unknown publisher — the build is not code-signed yet. Choose More info, then Run anyway.

Ubuntu

x86-64 Linux

Download .deb.AppImage

How to install

  1. 1

    Download the .deb package.

  2. 2

    Install it with apt — sudo apt install ./OpenMausBot-amd64.deb — or double-click it in your file manager.

  3. 3

    Not on Ubuntu? Take the .AppImage instead, mark it executable, and run it; it works on most other distributions.

Once it opens

Bring a key, or a CLI you already have

Bots run on the claude, codex, and grok CLIs installed on your machine, using your existing logins — or on API keys you paste into settings. Any one of them is enough to start.

Nothing else to install

The harness server is embedded in the app. There is no separate daemon, no Docker, and no account to create.

Everything stays on your disk

Transcripts, keys, and events live in ~/.openmausbot. Local-first is the default, not a setting.

Not yet available

iOS

Not yet available · Follow along on GitHub for the announcement.

Before you download