T3 Code is an open-source desktop application that acts as a unified control plane for AI coding agents. It lets developers orchestrate Claude Code, Codex, OpenCode, Cursor, and Grok from a single interface using their own existing subscriptions. T3 Code does not resell tokens or impose quota caps, and supports switching models mid-thread. It includes GitHub integration for one-click branch commits, pull request creation, and inline diff review. The project is MIT licensed, has over 14,000 GitHub stars, and is available on macOS, Windows, Linux, iOS, and Android.