T3 Code

T3 Code is a minimal web GUI for coding agents (currently Codex, Claude, and OpenCode, more coming soon).

Installation

[!WARNING] T3 Code currently supports Codex, Claude, 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
• OpenCode: install OpenCode and run opencode auth login

Run without installing

npx t3

Desktop app

Install the latest version of the desktop app from GitHub Releases, or from your favorite package registry:

Windows (winget)

winget install T3Tools.T3Code

macOS (Homebrew)

brew install --cask t3-code

Arch Linux (AUR)

yay -S t3code-bin

Some notes

We are very very early in this project. Expect bugs.

We are not accepting contributions yet.

Observability guide: docs/observability.md

Relay observability: docs/relay-observability.md

T3 Cloud Clerk setup: docs/t3-cloud-clerk.md

If you REALLY want to contribute still.... read this first

Before local development, prepare the environment and install dependencies:

# Optional: only needed if you use mise for dev tool management.
mise install
vp install

T3 Cloud is optional and disabled in a fresh clone. To enable it for web, desktop, and mobile source builds, copy .env.example to .env at the repository root and set the canonical public configuration there.

Read CONTRIBUTING.md before opening an issue or PR.

Need support? Join the Discord.