Short answer. T3 Code is a free, open-source way to drive several coding agents from one interface, on almost any device. If that is what you are looking for, it is a strong choice and you can install it now. Vakr is for the step after: an agent says it is done and you have to decide whether to believe it. I make Vakr, so weigh this accordingly.
What T3 Code is, and what it does well
T3 Code calls itself the open-source control plane for coding agents. It is free and MIT licensed. It does not resell tokens. You bring your own subscriptions for Claude Code, Codex, Cursor, Grok Build, OpenCode and Google Antigravity, and the site says more harnesses are shipping weekly. The GitHub repository showed 26.8k stars when I looked.
Things I think T3 Code does well:
- It runs everywhere. Desktop apps for macOS, Windows and Linux, a web app, apps for iPhone, iPad and Android, and a command line you can try before you install anything.
- From thread to pull request in one step. One button commits, pushes and opens a PR, with a generated title and body.
- A branch per thread. Every agent thread writes to its own branch, with inline diff review before you push.
- Several ways to reach another computer. T3 Connect links your devices through a sign-in, with no router changes. You can also pair directly over a private network with a one-time link, or use Tailscale.
The README is candid that the project is "very very early" and to expect bugs. I respect that they say so. Vakr is early too.
T3 Code and Vakr side by side
| T3 Code | Vakr | |
|---|---|---|
| What it is | An open-source control plane for coding agents: one interface to run and steer several agents | A Mac app that tracks your Projects and agents, and checks agent work before you merge |
| Price | Free. I found no paid plan on the site | Free on your own Machines. Pro $99 a year, not on sale yet. Founding licence $149 once. Everything unlocked during early access |
| Licence | MIT, open source | Not open source. Early access builds only |
| Platforms | macOS (Apple silicon and Intel), Windows 10 and 11, Linux, a web app, iPhone, iPad and Android | macOS 15 or later. A Linux VPS can join as a Machine |
| Agents | Claude Code, Codex, Cursor, Grok Build, OpenCode and Google Antigravity | Claude Code and Codex natively, and about 22 more over ACP, OpenCode among them |
| Where your code goes | The README describes it as controlling agents on your machine. Reaching it from elsewhere goes through a T3 Connect account, a direct pairing link or Tailscale. The pages I read do not say what passes through T3 Connect | It stays on your Mac. Paired Machines talk directly over your own network. No account |
| Checks on agent work | Inline diff review before you push. I couldn't find tests-first, a check of the agent's claims, or a second agent reviewing the diff on the site | Tests first with tamper detection, claims checked against what ran, and, when you ask for it, an agent from another vendor trying to break the diff (on every run with Pro) |
| Across several computers | T3 Connect with a sign-in, direct pairing over a private network, or Tailscale. Phone apps for iOS and Android | Pair another Mac or a Linux VPS with a code |
Pick T3 Code if…
- You want a free, MIT-licensed tool you can read, fork and run today.
- You work on Windows or Linux, or want the same tool on every device you own.
- You want real phone apps on iOS and Android.
- Your flow is chat with an agent, look at the diff, press one button to open the PR.
Pick Vakr if…
- You open more agent PRs than you can read, and review is where your week goes.
- You want the agent to write failing tests first. You approve a few short tests, and it cannot change them afterwards.
- You want what the agent said checked against what it ran, and a contradiction to hold the merge.
- You want to hand off work for tonight at 22:00, or for when your usage limit allows, and find reviews waiting in the morning.
What Vakr does not do
- It needs a Mac. macOS 15 or later. A Linux VPS can join as a Machine, but there is no Windows, Linux or web app. T3 Code is far ahead here.
- It is in early access. There is a waitlist, and you cannot download it today.
- There is no iPhone or Android app. Your phone gets a page over Tailscale.
- It is not open source.
- It is for one person. No team features.
- It is built around handing off a task and reviewing the result. If you like to steer an agent turn by turn in a thread, T3 Code suits that better.
If the checks are what you are after, the waitlist is at vakr.app.
Checked on 10 October 2026. Sources for T3 Code: t3.codes, its download page, the GitHub repository and its remote access guide.
Questions
Is Vakr a T3 Code alternative?
In part. Both run Claude Code and Codex on your own subscriptions and give each task its own branch. T3 Code covers far more devices and is open source. Vakr adds checks before you review.
Do I need an account for either?
T3 Code's remote access guide describes signing in to T3 Connect to reach a computer from your other devices, and it also documents direct pairing and Tailscale without it. Vakr has no account. You pair Machines with a code over your own network.
Which is further along?
T3 Code is public and on six platforms. Vakr is in early access behind a waitlist. If you need something today, T3 Code is the one you can install.
Guides to working with coding agents, with or without Vakr: the blog.