The registry: which measured domains serve an llms.txt, an agents.md, a media kit, a reciprocity-tested entity graph, an AI access policy that names crawlers, or agent-callable surfaces

One domain. Returns that row, or 404 when the domain is not listed.

Rows to skip. The response carries next, the URL of the following page, and complete: true on the last one

Opaque cursor from a previous response