curl --request POST \
  --url https://api.iotools.cloud/v1/tool/generator-sizing-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "loads": "Refrigerator, 700, 2200\nSump Pump, 800, 2000\nLights, 400\nMicrowave, 1200",
  "safetyMargin": "20"
}
'

{
  "tool": "generator-sizing-calculator",
  "tool_version": "1.0.1",
  "outputs": {
    "totalRunningWatts": "3,100 W (3.10 kW)",
    "peakStartingWatts": "4,600 W (4.60 kW)",
    "recommendedGeneratorSize": "6,000 W (6.0 kW) — covers 5,520 W required with a 20% margin",
    "amperageTable": [
      {
        "voltage": "120V",
        "amps": "25.8 A"
      },
      {
        "voltage": "240V",
        "amps": "12.9 A"
      }
    ],
    "loadBreakdown": [
      {
        "appliance": "Refrigerator",
        "running-w": "700",
        "starting-w": "2,200",
        "extra-surge-w": "1,500"
      },
      {
        "appliance": "Sump Pump",
        "running-w": "800",
        "starting-w": "2,000",
        "extra-surge-w": "1,200"
      },
      {
        "appliance": "Lights",
        "running-w": "400",
        "starting-w": "400",
        "extra-surge-w": "0"
      },
      {
        "appliance": "Microwave",
        "running-w": "1,200",
        "starting-w": "1,200",
        "extra-surge-w": "0"
      }
    ],
    "notes": "Sizing is driven by the largest motor's starting surge (+1,500 W above its running watts). This assumes only one large motor starts at a time — if two big motors could start together, size for their combined surge instead.\nThis is a rule-of-thumb estimate for choosing a generator, not a substitute for a licensed electrician's load calculation — especially before permanently wiring a standby unit through a transfer switch."
  },
  "credits_used": 3,
  "credits_remaining": null
}