T3 Code

T3 Code is an open-source control plane for coding agents, with more than 32,000 stars on GitHub. It lets developers orchestrate the AI coding agents already running on their machines — Claude Code, Codex, Cursor, Grok Build, OpenCode, and Google Antigravity — from one fast surface on mobile, web, and desktop, instead of juggling a separate terminal window for each tool.

Overview

Coding agents live in terminals, and every provider has its own command line and quirks. T3 Code wraps them all in a single agent harness control surface: one thread can run Claude, Codex, and other agents side by side, each writing to its own branch, while you watch, steer, and review from your phone, browser, or desktop app. It is built for developers who already pay for agent subscriptions and want a better way to drive them. The project is MIT-licensed, remote-ready, and deliberately forkable.

Key Features

• Every major coding agent in one place: Control Claude Code, Codex, Cursor, Grok Build, OpenCode, and Google Antigravity from a single thread, with more harnesses shipping regularly.
• Mobile, web, and desktop: Mobile apps for iOS and Android, a web app, and an Electron desktop app keep your agents reachable wherever you are.
• Bring your own subscription: T3 Code resells no tokens and imposes no quota caps — plug in the credentials you already have and switch models mid-thread.
• Branch-per-thread workflow: Every agent thread writes to its own branch, and one button commits, pushes, and opens a pull request with a generated title, body, and changelog.
• Built-in review tools: Inline diff review before pushing, draft and stacked pull requests, permission modes, and keyboard shortcuts keep agent output under human control.
• Remote-ready and self-hostable: Run the server in the background, connect from another machine or your phone, or fork the codebase and host it yourself.

Pricing

T3 Code is free and open source under the MIT license. It charges nothing itself; you only need the agent subscriptions you already pay for, such as Claude Code or Codex, and there are no resold tokens or quota caps.

Who Is It For

T3 Code is for developers who use multiple AI coding agents and want one fast, remote-ready surface to run, monitor, and review them — from a phone on the go or a desktop at their desk.