Wunderkind Wunderhook API
The Signals Wunderhook consumer contract — the single POST endpoint a client stands up to RECEIVE Wunderkind Signals webhook deliveries. The base URL is therefore templated and client-owned (https://{yourendpoint}), not a Wunderkind-operated host; Wunderkind is the sender. Deliveries are authenticated with static headers or Basic auth from a published 20-address IP allowlist, with no HMAC signing.