List webhooks for a directory

Optional. Send a unique key per logical operation to make retries safe. 1-256 characters, and only letters, digits, - and _ — colons and other separators are rejected with 400. A retry with the same key replays the original response (status + body) instead of re-executing. Cached for 24h. Reusing a key with a different request body returns 409 — note that a timestamp in the body (e.g. fetchedAt) turns an otherwise-stable key into a permanent 409, so either omit it (snapshots default it server-side) or fold a payload digest into the key. Skipped on 5xx responses (transient errors should be retried fresh).

API Key for authentication