Create outbound webhook
Owner/admin only. Creates an outbound webhook and returns its raw signing secret exactly once. The url must be an HTTPS DNS hostname; IP literals, localhost, .local hosts, credentials, and fragments are rejected at creation. Delivery refuses non-public DNS results and does not follow redirects. Payload schema version 2 is allowlisted. Delivery requests include primary and versioned signature headers plus X-Atoll-Delivery-Id for receiver-side deduplication. Atoll retries network failures and 5xx responses after 5s and 30s, then records status: retry_pending with next_retry_at; due retries are handled automatically in the background.
Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Query Parameters
Body
HTTPS DNS receiver URL. IP literals, localhost, .local hosts, URL credentials, and fragments are rejected at creation. Delivery refuses private, loopback, link-local, documentation, multicast, or otherwise non-public DNS results and does not follow redirects.
Response
Successful response
The response is of type object.

