POST /api/v1/transfers
Content-Type: application/json
Authorization: Bearer {access_token}

{
  "source_account_id": "acc_123456",
  "destination": {
    "type": "IBAN",
    "iban": "DE89370400440532013000",
    "name": "John Doe"
  },
  "amount": 250.00,
  "currency": "EUR",
  "payment_type": "INSTANT",
  "reference": "Invoice #12345"
}

{
  "transfer_id": "txn_abc789",
  "status": "COMPLETED",
  "amount": 250.00,
  "currency": "EUR",
  "payment_type": "INSTANT",
  "executed_at": "2024-01-15T10:30:00Z",
  "settlement_time": "INSTANT"
}

GET /api/v1/transfers/{transfer_id}
Authorization: Bearer {access_token}

{
  "transfer_id": "txn_abc789",
  "status": "COMPLETED",
  "status_history": [
    {"status": "INITIATED", "timestamp": "2024-01-15T10:29:58Z"},
    {"status": "PROCESSING", "timestamp": "2024-01-15T10:29:59Z"},
    {"status": "COMPLETED", "timestamp": "2024-01-15T10:30:00Z"}
  ]
}

{
  "event": "transfer.completed",
  "transfer_id": "txn_abc789",
  "status": "COMPLETED",
  "amount": 250.00,
  "currency": "EUR",
  "timestamp": "2024-01-15T10:30:00Z"
}