T3 Code

T3 Code is an open-source desktop app that acts as a control plane for AI coding agents. Instead of switching between Claude Code, Codex, OpenCode, Cursor, or Grok, you can run them all from one window. The app lets you bring your own subscriptions to each agent, so there's no extra cost or lock-in. It comes with a macOS download, and companion apps for iOS and Android let you access your agents from your phone.

What makes T3 Code stand out is its focus on giving you a single workspace for multiple AI models. You can start a thread with Claude Code, then switch to Codex without leaving the app. The Connections feature lets you link agents and workflows across contexts, so you can chain tasks or compare outputs. Because it's open-source, you can fork the code, tweak it, or add support for new agents as they appear. The app is built on Electron, but early users say it runs fast and doesn't hog resources.

T3 Code is built for developers who want flexibility in their AI coding tools. If you already use one or more AI coding agents and want to manage them from one place, this is for you. It's also useful for teams that want to standardize on a single interface while letting each developer pick their preferred backend model. The open-source nature means you can adapt it to your workflow, and the mobile apps let you check in on long-running tasks away from your desk.