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TL;DR
T3 Code is an open-source app that brings coding agents such as Claude Code, Codex and Cursor into one interface, with per-task Git branches and tools for reviewing and opening pull requests. It does not provide or resell the models: users connect their existing provider accounts, and their plans’ limits and terms still apply.
T3 Tools’ T3 Code is an open-source workspace for running multiple AI coding agents from one interface, allowing developers to manage tasks, review code changes and use Git actions across devices. The app does not supply or resell AI models; users connect the coding tools and subscriptions they already use, so provider charges, limits and terms remain in effect.
T3 Code is available as a desktop app for macOS, Windows and Linux, a web app, a command-line server and mobile apps for iOS and Android, according to its project materials. The agents run on a machine selected by the user, such as a laptop or server; other devices can connect to that setup remotely. The project’s source code is published under the MIT licence, and the app itself is free to use.
The project lists Claude Code, Codex, Cursor, Antigravity, OpenCode and Grok Build on its homepage. Its GitHub installation guide listed 10 providers on November 8, 2026, including Kiro, Pi, Muse Code and fx. T3 Code puts supported tools into a shared thread view with a common diff panel and Git actions. The documentation says users can switch providers during a thread, though the handoff does not preserve every part of the previous agent’s state.
Threads can use a separate Git branch and working folder, letting tasks run in parallel without sharing the same working files. Users can review the resulting changes and commit, push or open a pull request from the interface. The project says it can help draft commit messages and pull-request text. These are workflow features, not a guarantee that generated code is correct or ready to merge; developers still need to check changes and tests.
Infographic 01 · One surface, your own plans
Your subscriptions, one workspace
T3 Code puts the coding agents you already pay for into one interface. It orchestrates them; your provider bills you as before.
It does not resell tokens. You keep paying your AI providers as you do today, and your plan limits stay as they are.
Sign in with the tools you already have
On the machine that runs the agents
| Agent | How you sign in |
|---|---|
| Claude Code | claude auth login |
| Codex | codex login or Connect with ChatGPT |
| Cursor | agent login (Cursor CLI) |
| Grok Build | grok login |
| OpenCode | opencode auth login |
| Antigravity | Sign in with Google in the provider settings |
Sources: T3 Code homepage; GitHub install guide and FAQ (read 8 Nov 2026).
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One Interface, Existing AI Plans
The product addresses a practical problem for developers using several coding agents: each tool can otherwise have its own app, login, conversation history and approach to presenting code changes. A common workspace may make it easier to compare agents, keep track of parallel tasks and review their diffs without moving between as many separate interfaces.
Its pricing model also distinguishes it from services that bundle or resell model access. T3 Code says it does not resell tokens; users authenticate with each provider, which continues to bill them under its own plan. That means the app adds no separate T3 Code subscription charge, but it does not remove provider costs, usage restrictions or account requirements. The project’s usage page shows combined token use, while its documentation says cost figures are API-equivalent estimates rather than a statement of what a subscription user will be billed.
The trade-off is that the workspace adds another layer to a developer’s setup. Users need the relevant agents installed and authenticated, and must understand how the app handles permissions, local files and remote access before using it on sensitive work. Its value will depend on whether a developer actually benefits from coordinating multiple tools, rather than using one familiar agent in one terminal.
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How T3 Code Fits Existing Tools
T3 Code describes itself as a control plane for coding agents, rather than a model or an agent harness. In this usage, a harness is the software that lets a model interact with files and run commands. T3 Code’s stated approach is to use harnesses installed by the user and put a shared interface over them. That means it coordinates access to existing tools rather than replacing those tools’ underlying capabilities.
The project was at version 0.1.7 on November 4, 2026, according to the supplied source material. Its GitHub repository had 51,990 stars on November 8, a count that changes over time. The project website also claimed more than 500,000 developers use the app, but that figure was not independently verified in the source material and should be treated as the project’s claim, not an audited user count.
For account access, the installation guide describes logging in through each provider’s own command or sign-in process. The documentation also says users can configure API keys or OpenRouter separately. Subscription access and API billing are distinct arrangements, and provider-specific rules continue to apply whichever route a user chooses.
“the open-source control plane for coding agents”
— T3 Code’s homepage
Limits, Security and Early Status
The supplied material does not independently establish the project’s claimed user count, nor does it provide third-party testing of the app’s reliability, security or performance across all supported agents and platforms. Version 0.1.7 indicates an early release, but the source gives no detailed support commitments, service-level guarantees or roadmap milestones.
It is also not clear from the material how every provider’s account rules apply to every mode of remote use, or how the app handles all permission and access scenarios. The documentation says new threads start in full-access mode unless users change the default. Developers should confirm the scope of that access and review their provider’s terms before connecting accounts or directing agents to work with sensitive code. The project’s cost estimates should not be confused with subscription invoices.
Switching agents also does not carry everything forward: the documentation says internal reasoning, tool state and attachments from the old agent remain behind, even when relevant conversation details are handed over. How well a new agent continues a particular task may depend on what context is transferred and what it can retrieve.
What Developers Should Check
Developers considering T3 Code can check the current installation guide and release information, since supported providers and features may change as the project develops. Before starting a task, they should verify that the chosen agent is installed and authenticated, confirm which machine will run it, and review the thread’s access mode. For parallel work, they can check that separate tasks use separate branches and inspect each diff before committing or opening a pull request.
There is no specific next release date or development milestone in the supplied material. The immediate test for prospective users is whether the current version works with their agents, operating system and preferred Git workflow, and whether remote access fits their security needs. Any provider costs and usage limits will continue to depend on the user’s own accounts.
Key Questions
Does T3 Code include access to Claude Code or Codex?
No. T3 Code provides an interface for supported agents; users sign in with their own provider accounts or configure API access. The providers’ charges and usage rules continue to apply.
Which coding agents does it support?
The project homepage names Claude Code, Codex, Cursor, Antigravity, OpenCode and Grok Build. Its GitHub installation guide listed 10 providers on November 8, 2026, including Kiro, Pi, Muse Code and fx. Support can change, so check the current guide.
Can T3 Code run tasks on a phone?
The project lists iOS and Android apps, along with desktop and web versions. Its materials say the agents run on a machine chosen by the user, while other devices connect remotely. The phone is not necessarily the machine executing the coding agent.
Does switching agents preserve the whole conversation?
Not necessarily. T3 Code’s documentation says a handoff can carry conversation details and relevant activity, but the old agent’s internal reasoning, tool state and attachments are not preserved.
Is T3 Code suitable for every developer?
The project’s stated use case is coordinating multiple agents, parallel tasks and work across devices. A developer who uses one tool in one terminal may have less need for a shared workspace. The source describes version 0.1.7 and does not provide independent assessments of reliability or security.
Source: ThorstenMeyerAI.com
