blu

macOS app · voice · coding agents

Your projects are alive.
Just talk to them.

Every project is a colored blob floating on your screen. Say "Blue, fix the menu" — and Claude or Codex gets to work in that project, while you keep doing yours.

Get startedHow it works

A native Swift app for macOS 27 on Apple Silicon.

Lantern
Portfolio
Bot
Blog
Landing

Blue, fix the menu on mobile.

On it — Claude is working in Lantern.

A desk of agents you can talk to

Address by anything

By name, alias, color or place on the screen: "the top one", "blue on the right". If two fit, blu asks back — it never guesses.

Voice that keeps up

A full-duplex voice (GPT-Live) hears you, interrupts gracefully and tells you when a task is done. Or type on ⌥Space.

Real coding agents

Claude and Codex over the Agent Client Protocol, with your own sign-in. blu never reads your tokens.

Parallel, safely

Each conversation gets its own git worktree and branch, so several tasks run at once and your working copy stays untouched.

Ask once, allow similar

Permission requests come to the blob and the voice. "Always allow similar" turns into a rule for the project.

MCP per project

Give each project its own MCP servers — a tracker, a database, a browser. Secrets stay in the Keychain.

How it works

  1. 1

    Drop a folder on a blob

    Create a blob, drop a project folder from Finder onto it — it takes the folder’s name.

  2. 2

    Say what you want

    A language model works out who you mean and turns your words into a clean task for the agent.

  3. 3

    The agent works

    The blob shimmers while it works, asks for permission when needed, and reports back by voice.

  4. 4

    See the result

    Click the blob: it scatters around a live preview of the result, or opens the agent’s answer.

Bring your own agent

blu does the talking and the routing. The work is done by the agents you already use — Claude Code and Codex — in your folders, with your logins.

Meet your blobs

Build blu, add an OpenAI key for the voice and the command parser, sign in to Claude or Codex — and start talking.

Read the guide

Requires macOS 27, Apple Silicon, an OpenAI API key; Claude Code or Codex for real agents.