curl --request POST \
  --url https://api.iotools.cloud/v1/tool/golden-rectangle-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "solveFrom": "short",
  "shortSide": "10",
  "unit": "cm",
  "precision": "4"
}
'

{
  "tool": "golden-rectangle-calculator",
  "tool_version": "1.0.2",
  "outputs": {
    "results": [
      {
        "metric": "Short side",
        "value": "10 cm"
      },
      {
        "metric": "Long side",
        "value": "16.1803 cm"
      },
      {
        "metric": "Area",
        "value": "161.8034 cm²"
      },
      {
        "metric": "Perimeter",
        "value": "52.3607 cm"
      },
      {
        "metric": "Diagonal",
        "value": "19.0211 cm"
      },
      {
        "metric": "Aspect ratio (long ÷ short)",
        "value": "1.618:1"
      }
    ]
  },
  "credits_used": 5,
  "credits_remaining": null
}