Build

Which credential each call takes, and where to get it.

One request, from key to response.

An event list, a buy button and checkout on any site.

The envelope every response shares, and what an error carries.

One file, no build step.

App Router, catalogue read on the server.

A single-page app booting the SDK once.

Every front end, the credential it carries and the calls it makes.

How tags admit buyers to prices, windows and codes.

Signed events for every change.

Your data and tools in Claude, Cursor and other assistants.

The typed Backstage client.