Port22

What is Port22?

Port22 is an iPhone client for coding agents running on your Mac. A small Mac agent attaches to terminal sessions you already have open, and the phone app gives you the live transcript plus the ability to answer an approval prompt by tapping the actual option instead of guessing a keystroke. It is built for the gap between starting an agent and being at the desk when it stops: push notifications fire when a session finishes or needs approval, so idle time stops being invisible. Traffic between the Mac and the phone is end-to-end encrypted, LAN-first, with an encrypted relay taking over automatically when you are away from Wi-Fi.

Key features

• Attaches to terminal sessions that are already running rather than forking or creating new ones, so no wrapper or config change to an existing setup is required.
• Supports Claude Code, Codex and OpenCode today; OpenClaw and Hermes are listed as 'Soon'.
• Pairs over iCloud when the Mac and iPhone share an Apple ID, or via a six-character code over the same Wi-Fi when they do not.
• Live transcript on the phone — read tokens as the agent thinks, edits and runs — with reply and approve from the same screen.
• Push notification when an agent finishes or needs approval, a live session count in the Dynamic Island, and the full session roster on the lock screen.
• End-to-end encrypted between Mac and iPhone; LAN-first, with an encrypted relay engaging automatically off Wi-Fi. The site states the relay forwards ciphertext, never holds the keys, and cannot read your code.
• Works with Ghostty, kitty, Alacritty, WezTerm, tmux and Terminal.app; runs on Apple Silicon and Intel Macs.
• Free tier requires no account and no card.

Who it's for

• Approving a coding agent's tool call from the phone when it blocks minutes after you leave the desk.
• Watching a long-running agent session finish while away from the machine, instead of returning to find it stalled on a prompt.
• Keeping several agent sessions running across one or more Macs and seeing at a glance which one is waiting on a human.
• Reading what an agent actually did — token by token — without opening the laptop to check.

When not to use it

It needs a Mac running the agent CLI plus an iPhone, and it does not attach to Warp or IDE built-in terminals, so anyone on those terminals, on Android, or wanting a web client is out of scope.

FAQ