ADadcontextprotocol
Property Catalog

Sync catalog changes since a watermark

Changed on

Delta sync for local mirrors: returns catalog entries created/updated since since (a prior server_timestamp), capped at 10,000 per page. Pagination is by the returned server_timestamp watermark, distinct from browseCatalog's opaque cursor.

get/api/registry/catalog/sync

Request

  • Base URL
    https://agenticadvertising.org
  • URL
    https://agenticadvertising.org/api/registry/catalog/sync
  • Auth
    none required

Query parameters

sincestring required

Watermark from a prior response server_timestamp (required).

Example:2026-03-27T10:00:00Z
limitstring

Page size, capped at 10,000.

Response

Catalog delta

server_timestampstring required

Watermark to pass as since on the next sync (avoids clock skew).

next_cursorstring nullable required

Changes