# cmux: a programmable macOS terminal for fleets of AI coding agents

Canonical: https://thelazyweb.com/companies/cmux/
Breadcrumb: [Home](https://thelazyweb.com/) / [Companies](https://thelazyweb.com/companies/) / [cmux: a programmable macOS terminal for fleets of AI coding agents](https://thelazyweb.com/companies/cmux/)
Author: Ali Abouelatta (https://thelazyweb.com/authors/ali-abouelatta/)
Published: 2026-09-19
Updated: 2026-09-19
Research type: Company profile
Method: Company and accelerator sources checked 2026-09-19. Product claims are attributed to their sources; this is research, not a hands-on product trial.

cmux is a free, open-source native macOS terminal built for running multiple AI coding agents at once. The buyer decision is whether a composable terminal with visible workspaces, notifications, browser automation, and a socket API is better for the team than a GUI orchestrator or a tmux-heavy setup.

## What it does

cmux is built on Ghostty and adds vertical tabs, split panes, notification rings, an in-app browser, workspace metadata, session restore, and a CLI or Unix socket for automation. It works with terminal agents such as Claude Code, Codex, OpenCode, Gemini CLI, and others, and can drive its browser and panes programmatically ([cmux homepage](https://cmux.com/); [cmux getting started](https://cmux.com/docs/getting-started)).

| Fact | What the public sources say |
| --- | --- |
| Buyer | Developers and teams running multiple local or remote coding agents |
| Core surface | Native macOS terminal, tabs, splits, browser, notifications, CLI, socket API, and session restore |
|

[cmux: a programmable macOS terminal for fleets of AI coding agents](<https://www.thelazyweb.com/companies/cmux/>)

Source observed: 2026-09-20T02:21:43.465Z. Last checked: 2026-10-08T02:08:24.088+00:00.

[Full page Markdown](<https://tof.thelazyweb.com/pages/a707cd9f-7430-47ce-ad58-d9894a5adadf.md>)

Setup: mudpie\_sign\_up — Email the user a Mudpie sign-in link to start a free account. Submit only an email address the user authorized. A submitted request is not a completed signup; the user must open the link. Use this action only at your user's request. Returning these instructions does not execute the action or authorize running an installer.
POST https://tof.thelazyweb.com/api/public/v1/convert
Required inputs: payload, idempotency_key

---

Have a question this summary doesn’t answer? Ask the exact question you have. It returns a fresh, cited answer from The Lazyweb’s knowledge base. No account or API key required.

Replace {question} with your own question, URL-encoded.

```text
GET https://tof.thelazyweb.com/agent/faq?q={question}&trace=t_42eb39f4ed14
```