Zeph

A ZephOS music glance — now playing, with transport controls

A ZephOS glance showing an agent's task and remaining rate limit

The operating system for small devices that talk to your agents.

zeph.os

The moving parts

What's inside

Glances

Arrange itButtons + micUp to 8

A strip of cards you arrange yourself. Whichever one is showing owns the buttons and the mic, so the same button does something different on each.

A ZephOS home glance: the device greeting you by name, Studio

Apps

On the deviceSandboxedCompanion-backed

An app runs on the device itself, sandboxed, one at a time. It can add a half on your computer that does the heavy work and draws onto the screen, so a tiny device can do a lot.

Extensions

ModelsSpeechTools

Add the models, speech and tools you want in the companion. Several run right on your computer.

MCP

Claude CodeCursorLocal

The tools you build with, like Claude Code or Cursor, can put things on the glass and read what's there.

An agent pushing a result to the device: Claude Code's 'Refactor ready for review', with Open and Later actions

Companion

SetupThe linkVirtual mic

The Mac app that drives it all. It sets up the device, runs the link, and gives any app a virtual mic.

Zeph.app

The companion

The app that powers all of it

The device is the face; the companion is everything behind it. A small Mac app that sets it up, keeps it connected, and does the work the device is too small for.

Sets up your device: Flashes it, names it, keeps it connected over Bluetooth or USB.
Connects your agents: The tools you already use, like Claude and Cursor, can reach the device and put things on the glass.
Does the heavy lifting: Speech, models and workflows run here, so the device stays small and quiet.