T3 Code

An open-source desktop, web and phone app that runs Claude Code, Codex, Cursor and other coding agents from one place

AppEngineering Coding agentsOpen sourceMCP server

Y Combinator S22

What is T3 Code?

T3 Code is an open-source desktop, web and phone app that runs Claude Code, Codex, Cursor and other coding agents from one place. ZeroCrew lists it after checking it works for a company with no employees.

T3 Code is a control plane for coding agents you already pay for. It starts and steers Claude Code, Codex, Cursor, OpenCode, Grok Build, Google Antigravity and fx from a desktop app, a web app or iOS and Android, including remote machines. You bring your own provider subscriptions; T3 Code itself is free and open source under the MIT license. Outside agents can also connect to a T3 environment over its per-environment MCP server with OAuth, to read projects and threads or start and message them within the access you approve. It does not replace those agents: it orchestrates them.

By Ping.

Is T3 Code good for a one-person business?

Yes, one person can run T3 Code: you sign up and start without a sales call, it's open source, and your agents can use it through its MCP server. ZeroCrew checked this on T3 Code's own site.

Start alone: Self-serve; Sign up without a demo, says its site
Can I leave: Open source; You can host it yourself
Agents can use it: MCP server; Connect it to your agent
Connects with: 18 apps; Claude Code, Codex CLI, Antigravity, OpenCode

How big is T3 Code?

469 websites link to T3 Code, a domain rank of 345 out of 1,000. ZeroCrew checked the counts on November 9, 2026.

Websites linking and domain rank (0 to 1,000) from DataForSEO.

T3 Code reviews

Founder reviews of T3 Code are mostly positive, from 7 public posts ZeroCrew read and checked with a second AI model. Founders praise unified multi-agent workflow, remote and mobile access, and inbox-style thread organization.

What people say elsewhere

Praised for

Unified multi-agent workflow
Remote and mobile access
Inbox-style thread organization
Open-source transparency and control

Complained about

Bugs and unreliable operation
Missing features and extension compatibility
Heavy resource usage
Contribution approval bottlenecks

Summarized by AI from 7 public posts on Hacker News, Reddit, and X, November 9, 2026. Not reviews from ZeroCrew founders.

Ask HN: What's your current AI agentic setup? Hacker News
T3 Code now synced between GitHub and GitCafe Hacker News
T3 code is out Reddit
[FEATURE] Polish timeline (thought, tool calls) Reddit
T3 Code alpha is a great experience even in its early phase X

What products are similar to T3 Code?

Claude Code, GitHub Copilot, and heal do the same job as T3 Code (coding agents). ZeroCrew files every tool by the job it does.

Claude Code by AnthropicAnthropic's coding agent: it reads your codebase, edits files, runs commands, and opens pull requests.Agent

GitHub Copilot by GitHubAI pair programming and a coding agent inside GitHub.AppFree planMCPHas an agent

heal by MYIAAn agent that runs your product in a production-like sandbox and finds bugs code review missesAgentHas an agent

Cursor by AnysphereAn AI code editor with agents built in.AppFree planHas an agent

T3 Code MCP

Yes, T3 Code has an MCP server, so Claude, ChatGPT, Cursor, and other agents can use T3 Code for you; the setup steps for each are on its ZeroCrew MCP page. ZeroCrew checked the official MCP registry and T3 Code's own site.

MCP serverSet up the T3 Code MCP server

T3 Code integrations

T3 Code connects with 18 apps, including Claude Code, Codex CLI, and Antigravity; 8 of them are listed on ZeroCrew too. ZeroCrew read the list from T3 Code's own site on November 9, 2026.

Connects withClaude Code, Codex CLI, Antigravity, OpenCode, Cursor, Grok CLI, Muse, Gemini, GitHub, Google, Apple, Clerk

Is T3 Code right for what you're building?

ZeroCrew's Agent Zero checks T3 Code against its site, what founders say about it, and its competitors. The result: a yes, a no, or a better tool for what you describe. Free.