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.
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.
Warning
T3 Code currently supports Codex, Claude, Cursor, Grok Build and OpenCode. Install at least one provider before use. After T3 Code opens, its setup flow can authenticate the CLI in the environment that runs the server:
- Codex: Codex CLI
- Claude: Claude Code
- Cursor: Cursor CLI
- Grok Build: Grok Build CLI
- OpenCode: OpenCode
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.
The repository includes a Compose setup with Codex, Claude Code, Cursor Agent, Grok, and OpenCode preinstalled. Workspaces, T3 Code state, and provider authentication all live in dedicated Docker volumes, with no host filesystem or credential mounts.
See Run T3 Code with Docker Compose for setup, authentication, and host-permission details.
Install the latest version of the desktop app from GitHub Releases, or from your favorite package registry:
winget install T3Tools.T3Codebrew install --cask t3-codeyay -S t3code-binWe 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.
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.
T3 Code uses Vite+ so you'll need to install the global vp command-line tool.
curl -fsSL https://vite.plus | bashirm https://vite.plus/ps1 | iexCheckout their getting started guide for more information: https://viteplus.dev/guide/
vp iRead CONTRIBUTING.md before opening an issue or PR.
Need support? Join the Discord.