MBMegaBrain
MegaBrain Agents

Coding agents,
native on your Mac.

MegaBrain Agents runs Claude Code, Codex, and OpenCode locally — on your own subscription or for free on the MegaBrain gateway — with the harness CLIs bundled in, so there is nothing else to install.

Read the docs

Local agents run on your machine · macOS · Apple Silicon & Intel

MegaBrain Agents — Run panel
Connections

Claude Code connected via your Anthropic subscription. Codex signed in. OpenCode ready on the MegaBrain gateway — no subscription required.

3 harnesses connected
>>>claude-code run "fix the failing test"
running locally · your subscription · streaming output
What it does

The desktop home for your coding agents,
not another CLI to juggle.

Nothing to install

Claude Code, Codex, and OpenCode ship bundled inside the app. Download it, connect your subscription, and start working — no npm i -g, no first-launch download.

Bring your own subscription

Connecting Claude Code or Codex runs the vendor’s own login. Every request goes through the real CLI on your machine, on your subscription — the ToS-safe way, not a re-implemented client.

Works with zero subscription

OpenCode runs on the MegaBrain gateway the moment you sign in — a usable harness with no personal subscription required.

One native app for every harness

Switch between Claude Code, Codex, and OpenCode from the same Run panel instead of juggling terminal tabs and separate installs.

Local by design

Your subscription, your machine.

MegaBrain Agents never re-implements a vendor's login or re-uses your subscription token from its own client. Connecting Claude Code or Codex runs the vendor's own sign-in, and every model request is made by the real CLI on your machine — the ToS-safe way to bring your own subscription.

Read the docs
  • ✓Bundled harness CLIs — nothing to install separately
  • ✓Bring your own Claude Code / Codex subscription
  • ✓Zero-subscription OpenCode on the MegaBrain gateway
  • ✓Cloud agents, from the same app, coming next
How it works

From download to your first task

01

Download the app

A native build for Apple Silicon and Intel Macs. The harness CLIs are staged inside — no separate install step.

02

Connect a harness

Sign in to Claude Code or Codex with the vendor’s own login, or just use OpenCode on the MegaBrain gateway.

03

Run coding tasks

Kick off a task from the Run panel and watch it stream locally — your subscription, your machine.

Run your next coding task natively.

Download MegaBrain Agents and connect a harness in minutes — on your own Mac.

Read the docs