Scope3 Webhooks

generated: '2026-07-21'
method: searched
source: https://github.com/scope3data/agentic-client
spec_type: Webhooks
surface: AdCP (Ad Context Protocol) event webhooks on the Scope3 Agentic Platform
description: >-
  The Scope3 Agentic Platform is event-driven over AdCP. The `scope3` npm SDK ships a
  WebhookServer class for handling AdCP events, and asynchronous operations (media-buy
  activation, audience/event-source/catalog syndication) track status via webhooks with a
  polling fallback (`retryAfterSeconds` guidance) when webhooks are unavailable.
mechanism:
  transport: http-callback
  delivery: AdCP async status webhooks
  server_class: WebhookServer (npm scope3)
  polling_fallback: true
event_areas:
  - media-buy status transitions (pending -> active, active -> paused)
  - syndication status (audiences, event sources, catalogs to AdCP agents)
  - creative-review / approval-queue updates (storefront persona)
no_asyncapi_document: true
notes: >-
  Scope3 documents a webhook mechanism but does not publish a machine-readable AsyncAPI
  document or a fixed named-event catalog; event areas above are captured from the
  published buyer/storefront skill.md guides and SDK README. No events were fabricated.