curl --request POST \
  --url https://api.example.com/api/v1/open/callbacks/endpoints \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Id: <x-api-id>' \
  --header 'X-Api-Nonce: <x-api-nonce>' \
  --header 'X-Api-Signature: <api-key>' \
  --header 'X-Api-Timestamp: <x-api-timestamp>' \
  --data '
{
  "name": "production-webhook",
  "url": "https://partner.example.com/utmos/callbacks",
  "status": "ACTIVE",
  "rotate_secret": false,
  "timeout_seconds": 5,
  "max_attempts": 12
}
'

{
  "endpoint_id": "db232c4a-82e7-4d4c-b49f-022c94f5db67",
  "tenant_id": "tenant_001",
  "name": "production-webhook",
  "url": "https://partner.example.com/utmos/callbacks",
  "status": "ACTIVE",
  "secret": "secret-returned-once",
  "timeout_seconds": 5,
  "max_attempts": 12,
  "request_id": "req-001"
}