curl --request GET \
  --url https://api.natural.co/transactions/{transactionId} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "type": "transaction",
    "id": "txn_550e8400e29b41d4a716446655440000",
    "attributes": {
      "amount": 100000,
      "currency": "USD",
      "status": "COMPLETED",
      "escalationId": null,
      "disputeId": null,
      "description": "Invoice payment",
      "memo": null,
      "createdAt": "2026-01-04T15:30:00Z",
      "updatedAt": "2026-01-04T15:31:00Z",
      "isDelegated": false,
      "customerName": null,
      "customerAgentId": null,
      "senderName": "Acme Corp",
      "recipientName": "Vendor LLC",
      "transactionType": "payment",
      "category": "sent",
      "direction": "OUTBOUND"
    },
    "relationships": {
      "sourceParty": {
        "data": {
          "type": "party",
          "id": "pty_7c9e6679e29b41d4a716446655440001"
        }
      },
      "destinationParty": {
        "data": {
          "type": "party",
          "id": "pty_7c9e6679e29b41d4a716446655440002"
        }
      },
      "sourceWallet": {
        "data": {
          "type": "wallet",
          "id": "wal_550e8400e29b41d4a716446655440000"
        }
      },
      "destinationWallet": {
        "data": null
      }
    }
  }
}