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Webhook

A signed POST to your URL when account, creative, campaign, destination, or conversion state changes. Verify X-AdpZero-Signature on the raw body.

Published 2026-09-10 · Search job: ad buying API webhook

A webhook is a signed HTTP POST Adprime Zero sends to a URL you subscribe. Delivery rows are stored. Retries are bounded. The signature header is X-AdpZero-Signature and it covers the exact JSON body.

Event types include funding, low balance from real reconciliation, creative review, campaign activated or paused, landing-page url.changed, and conversion received or attributed.

Subscribe once and react. Do not poll every creative and campaign forever. Subscribe to webhooks from an agent is the setup page. Webhooks vs polling is the scope page.

Related

Guides
Subscribe to webhooks from an agent

Subscribe once, verify X-AdpZero-Signature on the exact JSON body, and react to funded, paused, review, and conversion events instead of polling every surface.

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Webhooks vs polling for an ad-buying agent

Subscribe to signed lifecycle events for funded, paused, review, and conversion. Poll performance and freshness. Do not poll every object every few seconds.

Guides
How an agent buys ads

After setup, the agent funds through a hosted link, submits creative, creates targeting, activates when ready, reads freshness-aware performance, and iterates on associations. It never collects cards.

Run the next test from chat

Open an account, add prepaid budget, and let an agent create the campaign, rotate creatives, and read the report. No DSP setup, no insertion order, no sales call.

Open accountCursor guide