The agentic
development environment.
One seamless place to run and steer every agent you have, local or remote. Move fast. Stay in control.
770+ engineers on the waitlist
mac-app · needs you
wants to run the test suite
Every terminal, grouped
One window, grouped by folder, with the live agent state on each card.
“Needs you” alerts
Surfaces the sessions blocked on a decision, before they stall.
Pair your phone
Approve or redirect a run from anywhere you happen to be.
Claude Code, Codex, any shell
First-class agent support, plus every ordinary terminal you run.
Stay in the terminal.
Search, git, pairing, palette — everything a keystroke away, nothing that pulls you out of flow.
Search every file, in every session, at once.
One search box reaches across all your open worktrees and folders, not just the terminal you happen to be looking at.
Every action, one keystroke away.
New terminal, new terminal in a specific folder, pair your phone, disconnect an agent - a single palette instead of hunting through menus.
Read the diff before you approve it.
History, branches and a real side-by-side diff for the repo an agent is working in, without leaving the window.
Scan once, carry every session with you.
The Pair iPhone sheet hands off over an encrypted relay - no accounts, no cloud sign-in, just a QR code or a short manual code.
Know your Claude quota at a glance.
The status bar tracks the 5-hour and 7-day windows live, so you see a plan limit coming before an agent runs into it.
Won't doze off mid-task.
One toggle holds a wake assertion for as long as an agent is running, so a long build or a slow model doesn't stall because the Mac slept.
Walk away. It finds you.
Multiplex Mobile is not a status page. It is the same session over an encrypted relay: read the output, answer the prompt, run the tests, read the diff, from wherever you happen to be.
● Read(SplitView.swift)
⎿ read 412 lines
Run the test suite? (y/n)
your mac
Saturday, 6 September
2:14
mac-app
Run the test suite? (y/n)
swipe up to open
Approve from anywhere.
Scan once to pair Multiplex Mobile with your Mac. The moment a terminal needs a decision you get a push: approve, redirect, or type a follow-up from your phone, and it lands in the session instantly.
Push on “needs you”
Only the terminals actually blocked on you.
Multi-host
All your paired Macs in a single list.
Multiplex
mac-app needs you
Sessions
raja@mac-studio · 1 needs you
Edit SidebarCard.swift: collapse the card to a single line.
✓ 42 tests passed (11.4s)
● Edit(SidebarCard.swift)
● multiplex-relay.service — active
Stop babysitting terminals.
The Mac app is free during beta. Pair it with the iPhone app from the App Store and approve from anywhere.
Apple silicon only · no card required