Software · Research

Platforms for
agentic development.

CHYNJ builds software for work that does not belong inside one model, one cloud, or one machine. Start with the tools you need. Keep the ability to change the rest.

// KAPTAIN

Your models, tools and agents.
One runtime, on your own machines.

Local models, cloud APIs and the Claude Code and Codex CLIs in one picker, with one set of tools, one approval gate and a record of every step.

Install

Linux

64-bit Linux on Intel, AMD or ARM, any distribution. If the installer asks, add Kaptain to your PATH, then run kaptain start; setup opens in your browser.

macOS

macOS 12 or later, Apple silicon or Intel. Run it in Terminal. If the installer asks, add Kaptain to your PATH, then run kaptain start; setup opens in your browser.

Windows

Download for Windows

Windows 10 or 11, 64-bit. Run the file and setup opens in your browser. If Windows SmartScreen warns, choose More info, then Run anyway.

Installing means you accept the Terms. Every step, for every platform: Kaptain Docs.

Ask once. Kaptain runs the tools you allow and shows you every step.
// A NOTE FROM CHYNJ

The dominant software model asks you to rent the workflow, accept the defaults, and stay inside the boundary. Agentic systems need the opposite: the freedom to route, connect, inspect, and change.

// WHY CHYNJ

Agentic systems should be able to move: between models, between environments, and between the tools that make a workflow useful.

We build for that movement. Local where it helps. Cloud where it earns its place. Software that stays understandable when the workflow grows.

// CURRENT PLATFORMS

One ecosystem.
Practical tools.

One product, built to build the rest.

// BUILT WITH KAPTAIN · FOR CHYNJ

Kaptain builds.
These are receipts.

Working apps, each built end to end with Kaptain — and each runs locally on your own devices, where Kaptain can drive it. A controllable ecosystem: Kaptain drives them over their local APIs. Every one is being prepared as a free, open release; repo and README links land on these cards as they ship.

// CHYNJ INSIGHTS

Research for the
agent ecosystem.

We publish the reasoning behind the products: token economics, model routing, agent communication, secured interaction, and the systems required to make agentic development sustainable.

Start with the platform that fits.

Build the workflow you need now. Keep the ability to change how it runs later.