curl --request GET \
  --url https://api.withallo.com/v2/api/webhooks/{webhook_id} \
  --header 'Authorization: <api-key>'

{
  "data": {
    "id": "ep_2NfDKEm9sF8xK3pQr1Zt",
    "url": "https://example.com/webhooks/allo",
    "topics": [
      "call.received",
      "sms.received"
    ],
    "description": "Production event stream",
    "enabled": true,
    "signing_secret": "whsec_C2FVsBQIhrscChlQIMV+b5sSYspob7oD",
    "created_at": "2026-04-21T14:30:00Z"
  }
}