cmux

A native macOS terminal built on Ghostty for working with many coding agents, with notifications, a socket API, SSH workspaces and paid cloud machines.

Core features

• Sandboxed runs Partial

  cmux Cloud machines are in early access behind a Beta Features setting, and need a paid plan.

  Source
• Diff review YesSource
• Agent coordination YesSource
• Scheduled tasksNo

  Docs site, repo docs, changelog and CLI command tree searched for schedule, cron and recurring. Nothing found; automations fire on app events, not on time.

• Event triggersNo

  Docs, event list and changelog searched for webhook, trigger, Slack and GitHub events. Automations react only to cmux's in-process events, and webhooks there are outgoing.

• Team collaboration Partial

  Team plans have invites, member roles and team machines, but shared work runs on cmux Cloud, which is in early access.

  Source
• API / CLI control YesSource

Pricing

Free $0 (local terminal, own keys). Pro $50/mo (5 Cloud VMs sharing 20 vCPUs and 40 GB RAM, iOS app). Max $200/mo (5 VMs sharing 80 vCPUs and 160 GB RAM). Team $60/user/mo. Enterprise custom, with self-hosted Cloud execution.

Platforms

macOS 14+ desktop app; cmux TUI for macOS, Linux, Windows; iOS app in beta on TestFlight (paid plans); cmux CLI.

Research notes

License: GitHub's NOASSERTION reflects a split. The client is GPL-3.0-or-later, but web/, workers/ci-artifacts/, workers/iroh-v2/, workers/presence/, services/iroh-relay-minter/ and cmux-tui/relays/cloudflare-do/ are BUSL-1.1, which needs a commercial license for production use, including self-hosting. So the 'free and GPL-licensed' claim covers the client only, and cmux Cloud itself is not self-hostable under open terms. Paid tiers: free accounts cannot create Cloud machines. Subscriptions: CodeRouter is a hosted model router that pools ChatGPT, Claude Max or Pro, and OpenCode Go subscriptions plus OpenAI, OpenRouter, Anthropic and Bedrock keys. Provider traffic goes through CodeRouter's hosted service, not your Mac or VM, which matters for anyone checking provider terms. Locally, cmux just runs agents in terminals using each CLI's own login. Integration is terminal-pty: agents run in terminal panes, with hooks for status and resume. Cloud machines have the agents preinstalled. No CodeRouter-specific price was found.

Agents & providers

Codex Claude Code OpenCode Pi Gemini CLI Kiro Aider Goose Amp Cline Cursor Agent any terminal agent