ObjectStack is the open protocol and SDK that ObjectOS is built on: one typed business ontology, and the database, API, Console and MCP tools derive from it.

Start here

npm create objectstack@latest my-app

cd my-app

npx os dev --ui

then open http://localhost:3000/_console/ — the Console renders the app the metadata describes

Docs

Getting started

What ObjectStack is, your first project, the anatomy of an app.

The business ontology, the runtime, and the principles behind both.

The protocol: how Data, UI and System layers describe an application.

The os command — validate, dev, build, start, package.

The main workflow: an agent writes the app, you verify it in the Console.

Run it

ObjectOS is the product built on this protocol, in three editions. Every edition runs the same ObjectStack metadata.

This repository’s runtime image, self-hosted and free: os start, or the container image.

Hosted by ObjectOS — nothing to install, build and ask in the browser.

Your infrastructure, your identity provider, with support from the team.