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

{
  "data": {
    "id": "dea-def456",
    "name": "Enterprise Plan",
    "status": "negotiation",
    "amount": 50000,
    "currency": "USD",
    "closed_at": null,
    "company": {
      "id": "com-xyz789",
      "name": "Acme Corp"
    },
    "created_at": "2026-04-15T14:00:00",
    "updated_at": "2026-04-28T10:30:00"
  }
}