curl --request POST \
  --url https://api.iotools.cloud/v1/tool/carpet-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "unitSystem": "imperial",
  "roomLength": "12",
  "roomWidth": "10",
  "rollWidthFt": "12",
  "rollWidthM": "",
  "wastePct": "10",
  "carpetPricePerUnit": "35",
  "paddingPricePerUnit": "6",
  "installCostPerUnit": "8"
}
'

{
  "tool": "carpet-calculator",
  "tool_version": "1.0.2",
  "outputs": {
    "results": [
      {
        "metric": "Room dimensions",
        "value": "12.00 ft (3.66 m) × 10.00 ft (3.05 m)"
      },
      {
        "metric": "Room area",
        "value": "120.00 sq ft (11.15 m²)"
      },
      {
        "metric": "Roll width used",
        "value": "12.00 ft (3.66 m)"
      },
      {
        "metric": "Layout",
        "value": "1 strip(s), 0 seam(s) — strips run the room's width, seamed side by side across the length"
      },
      {
        "metric": "Roll length needed (no waste)",
        "value": "10.00 ft (3.05 m)"
      },
      {
        "metric": "Waste buffer (+10%)",
        "value": "1.00 ft (0.30 m)"
      },
      {
        "metric": "Total roll length to order",
        "value": "11.00 ft (3.35 m)"
      },
      {
        "metric": "Carpet to purchase",
        "value": "132.00 sq ft / 14.67 sq yd (12.26 m²)"
      },
      {
        "metric": "Roll-width offcut (before waste buffer)",
        "value": "0.00 sq ft (0.00 m²)"
      },
      {
        "metric": "Carpet cost",
        "value": "$513.33"
      },
      {
        "metric": "Padding cost",
        "value": "$80.00"
      },
      {
        "metric": "Installation cost",
        "value": "$106.67"
      },
      {
        "metric": "Total cost",
        "value": "$700.00"
      }
    ],
    "summary": "120.00 sq ft (11.15 m²) room · 1 strip(s)/0 seam(s) · 11.00 ft (3.35 m) of carpet to order · $700.00 total"
  },
  "credits_used": 5,
  "credits_remaining": null
}