T3 Code
T3 Code is an "agent harness control surface". It enables control of the agents on your machine with a best-in-class mobile app (iOS, Android), web app and Electron-based desktop app.
Works with your subscriptions on Claude Code, Codex, Cursor, Grok Build, and OpenCode. If they're set up on your computer, T3 Code can control them.
"Wait, what are you selling me?"
Nothing. We built T3 Code because we wanted the best possible development experience with agents. We were inspired by existing solutions like the Codex desktop app, Conductor, Claude Desktop and Cursor Glass, but none met our bar.
We wanted something performant, remote-ready, and truly open. If we ever go the wrong direction, we want you to have everything you need to fork and build the editor that you want.
Installation
Warning
T3 Code currently supports Codex, Claude, Cursor, Grok Build and OpenCode. Install and authenticate at least one provider before use:
- Codex: install Codex CLI and run
codex login - Claude: install Claude Code and run
claude auth login - Cursor: install Cursor CLI and run
agent login - Grok Build: install Grok Build CLI and run
grok login - OpenCode: install OpenCode and run
opencode auth login
Try it out (install-free)
The easiest way to test T3 Code is to run the server in your terminal (requires Node.js 22.16+, 23.11+, or 24.10+):
npx t3@latestThis will launch T3 Code's backend on your machine as well as the local web app to control your agents.
Tip: Use npx t3@latest --help for the full CLI reference.
Desktop app
Install the latest version of the desktop app from GitHub Releases, or from your favorite package registry:
Windows (winget)
winget install T3Tools.T3CodemacOS (Homebrew)
brew install --cask t3-codeArch Linux (AUR)
yay -S t3code-binSome notes
We are very very early in this project. Expect bugs.
We are (mostly) not accepting contributions yet. Small fixes may be considered. Big features will not be.
Documentation
Full docs live in docs/. There's no docs site yet.
- Install and first run
- Permission modes
- Keyboard shortcuts
- Remote access from a phone or another machine
- Keeping app and server in sync
- Source control integrations
- Multiple accounts: Codex · Claude
- Linux: run T3 Code as a background service
Building from source? Start at docs/internals/overview.md.
If you REALLY want to contribute still.... read this first
Install vp
T3 Code uses Vite+ so you'll need to install the global vp command-line tool.
macOS / Linux
curl -fsSL https://vite.plus | bashWindows
irm https://vite.plus/ps1 | iexCheckout their getting started guide for more information: https://viteplus.dev/guide/
Install dependencies
vp iRead CONTRIBUTING.md before opening an issue or PR.
Need support? Join the Discord.
