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TL;DR
T3 Code is an open-source workspace that brings coding agents such as Claude Code and Codex into one interface. Its November 2026 documentation describes per-task Git worktrees, agent switching and remote access, while users continue to pay their providers directly.
T3 Code is an open-source workspace for using Claude Code, Codex and other coding agents through one interface, according to project materials dated November 8, 2026. Rather than selling its own model or token plan, the app connects to tools users already have, and offers a shared place to manage agent threads, review code changes and carry out Git tasks, including tools such as AI coding agents.
The project describes itself as an interface layer over existing coding-agent tools, not as a model or a replacement for the software that runs those agents. Its materials list Claude Code, Codex, Cursor, Grok Build, OpenCode and Google’s Antigravity; a GitHub installation guide cited in the source listed 10 providers, including Kiro, Pi, Muse Code and fx. The list reflects documentation checked on November 8, 2026 and may change. Other tools are also exploring context-aware AI code reviews.
Users connect through the agents’ own sign-in methods or configure separate provider credentials, according to the installation guide and FAQ. T3 Code says it does not resell tokens; provider subscriptions, quotas and terms continue to apply. A usage page can show activity across agents, but its cost figures are described as API-equivalent estimates, not statements of what a subscriber was billed.
Each task can run in its own Git branch and working folder, called a worktree in the project materials. That separation is intended to let several agent tasks proceed without writing into the same working directory. From the interface, users can inspect a diff and use Git actions to commit, push and open a pull request. The project also says users can switch agents within a thread, although the handoff may not preserve an agent’s internal reasoning, tool state or attachments—a consideration as AI agent safety remains under scrutiny.
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 Workspace for Parallel Agent Work
The practical pitch is consolidation, not a new coding model. Developers who already use multiple agents can manage work and inspect changes in one place rather than moving among separate apps or terminals. The shared thread view and common diff panel may make it easier to compare outputs, while isolated worktrees give concurrent tasks separate folders and branches.
That can matter when an engineer wants one agent to draft a change and another to review it, or needs to keep a task moving after changing providers. But T3 Code’s interface does not remove the need to assess the code. Users still need to review diffs and decide whether changes meet project requirements before committing or opening a pull request. The project describes workflow capabilities; the source does not provide independent evidence of measured productivity gains.
The pricing model also affects who may find the app useful. Since the project says its software is free and users bring their own provider accounts, it does not replace subscription costs or expand a plan’s limits. Its value depends on whether managing several tools in one workspace is worth adding another application to a developer’s setup.
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How T3 Code Fits Existing Tools
T3 Code’s FAQ distinguishes between a model and a harness: the model generates responses, while a harness supplies the environment and tools used to read files or run commands. The project says it uses installed harnesses and puts a shared interface above them. Its homepage calls this an open-source control plane for coding agents.
The source describes desktop apps for macOS, Windows and Linux, as well as a web app, command-line server and mobile apps for iOS and Android. The agents run on a machine chosen by the user, such as a laptop or server; other devices can connect as remote controls. The project is listed under the MIT license. The source reports roughly 51,990 GitHub stars on November 8, 2026, while its site claimed more than 500,000 developers use the product; that user figure was not independently verified in the source.
The cited project version was 0.1.7, dated November 4, 2026, making the described release an early version. That matters when evaluating support, reliability and workflow details: the supplied material describes current features and claims but does not establish how they perform across every operating system, provider or project setup.
“the open-source control plane for coding agents”
— T3 Code homepage
Limits, Compatibility and Early Release
The supplied material does not establish how reliably every listed provider works across operating systems or whether all features are available for every agent. It also does not give independent testing of performance, security, or the quality of agent handoffs. T3 Code says short conversations can move intact when switching providers, while longer ones may be condensed; older messages can be retrieved through a thread-reading tool, but internal reasoning, tool state and attachments do not carry over.
Provider terms and plan limits remain in force, and the project’s usage estimates should not be treated as a user’s actual subscription bill. The source also warns that new threads start in full-access mode unless the user changes the default. The implications of that setting depend on the connected agent and local configuration, details not fully specified in the source. Its reported figure of more than 500,000 users is a project claim, not an independently checked count.
What Users Should Check Before Installing
Developers considering T3 Code can check the current installation guide and release notes for supported providers, operating systems and changes since version 0.1.7. They will also need to confirm that each agent is installed and authenticated on the machine where tasks run, and review provider terms and plan limits before combining accounts in one workflow.
Before using it on active work, users can inspect the access defaults, test how threads and worktrees behave in their repository, and verify what information survives an agent switch. The source material does not announce a future release date or a specific next milestone. Further changes to provider support and Git features remain dependent on project updates.
Key Questions
Does T3 Code include Claude Code or Codex subscriptions?
No. T3 Code says it does not resell tokens or include provider subscriptions. Users sign in with the relevant services and remain subject to each provider’s billing and plan limits.
Which coding agents does the workspace support?
The source lists Claude Code, Codex, Cursor, Grok Build, OpenCode and Google’s Antigravity on the homepage. A GitHub installation guide checked on November 8, 2026 listed 10 providers, adding Kiro, Pi, Muse Code and fx. Availability may change, so users should check the current guide.
Can users switch agents during a task?
According to T3 Code’s documentation, users can switch providers within a thread. Short conversations may transfer intact; longer ones may be condensed. The project’s materials say the old agent’s internal reasoning, tool state and attachments do not carry over.
How does T3 Code handle separate coding tasks?
A thread can use its own Git branch and working folder, or worktree, to keep its changes separate from other tasks. Users can inspect the resulting diff and use the interface’s Git actions to commit, push and open a pull request.
Is T3 Code’s usage page the same as a provider bill?
No. The project describes its cost figures as API-equivalent estimates. They are not necessarily the amount a user pays under a subscription, and provider billing and usage limits remain separate.
Source: ThorstenMeyerAI.com
