Claude Code
Hard, multi-step coding work in the terminal when you want the highest benchmark scores.
verified 2026-11-02
Coding agents & AI IDEs · open source
T3 Code
An open-source (MIT) "agent harness control surface". It drives Claude Code, Codex, Cursor, Grok Build, OpenCode, Antigravity and fx on your machine from a desktop app, web app or phone.
Best for: One desktop, web and mobile control surface for the coding agents you already pay for.
Pricing
| Free tier | Yes. MIT open source; the README says the team is selling "Nothing". |
|---|---|
| Paid plans | None. You use your own Claude Code, Codex, Cursor or other subscriptions. |
| Maker | T3 Tools |
| Source | https://github.com/pingdotgg/t3code |
| Last verified |
Pros
- Works with your existing agent subscriptions
- iOS and Android apps for remote control
- MIT license, fork-friendly
Cons
- Not an agent itself: you need at least one provider CLI installed and signed in
- Usage limits come from whichever subscriptions you connect
Notable facts
- 42k+ GitHub stars per the official site (Nov 2, 2026) — source
Alternatives
OpenAI Codex
Getting strong agentic coding for the lowest cost per task, starting free with a ChatGPT account.
verified 2026-11-02
Cursor
An AI-first code editor for everyday work, with local and cloud agents.
verified 2026-11-02
GitHub Copilot
Teams already on GitHub who want agent mode, cloud agents and code review in their existing IDE.
verified 2026-11-02
Devin (Desktop & Cloud)
Managing several local and cloud coding agents from one IDE, including third-party agents.
verified 2026-11-02
FAQ
Is T3 Code free?
Yes. MIT open source; the README says the team is selling "Nothing".
How much does T3 Code cost?
None. You use your own Claude Code, Codex, Cursor or other subscriptions.
What is T3 Code best for?
One desktop, web and mobile control surface for the coding agents you already pay for.
Who makes T3 Code?
T3 Code is made by T3 Tools.
Spotted something out of date? Tell us and we'll re-verify. Facts on this page come only from the linked sources.