This walks through going from a fresh deployment to a published entry your frontend can read. Set B to your deployment URL.
1

Create the first admin

Setup runs once. If a SETUP_TOKEN was configured, pass it as the x-setup-token header.
After this, the setup endpoint is closed and returns 409.
2

Define a content type

Content types are field definitions. Mark a type public to allow unauthenticated reads of its published entries.
3

Create and publish an entry

New entries start as drafts. Publishing makes them visible to public and read-key callers.
4

Read it from your frontend

Public types need no key. For non-public types, generate a read key (see Authentication).
You now have a live content type, a published entry, and a public read endpoint. Explore the schema interactively at /graphql in a browser.