{
  "request": {
    "method": "GET",
    "url": "https://production.rutterapi.com/versioned/invoices?access_token=acc_xyz789",
    "headers": {
      "Authorization": "Basic base64(client_id:client_secret)",
      "X-Rutter-Version": "2024-08-31"
    }
  },
  "response": {
    "status": 200,
    "body": {
      "invoices": [
        {
          "id": "inv_001",
          "customer_id": "cust_abc",
          "status": "open",
          "amount_due": 2500.00,
          "currency": "USD",
          "due_date": "2026-06-01",
          "line_items": [
            {
              "description": "Professional Services - May 2026",
              "quantity": 10,
              "unit_price": 250.00,
              "total_amount": 2500.00
            }
          ]
        }
      ],
      "next_cursor": null
    }
  }
}