Send a `ping` event to the endpoint and wait up to 10 s for its answer

POST /v1/webhooks/{id}/test

curl -X POST "https://api.kaab.ist/v1/webhooks/{id}/test" \
  -H "Authorization: Bearer $KAAB_API_KEY"

{
  "id": "dlv_01j9zqk3q7m4n5p6r7s8t9v0wx",
  "object": "webhook_delivery",
  "endpoint_id": "whk_01j9zqk3q7m4n5p6r7s8t9v0wx",
  "event_id": "evt_01j9zqk3q7m4n5p6r7s8t9v0wx",
  "event_type": "job.needs_attention",
  "origin": "planned",
  "attempt": 2,
  "status": "pending",
  "response_code": 500,
  "response_ms": 1200,
  "response_body": "upstream exploded",
  "error": "http_500",
  "next_retry_at": "2026-09-18T10:05:00Z",
  "last_attempt_at": "2026-09-18T10:00:01Z",
  "created_at": "2026-09-18T10:00:00Z"
}