curl --request POST \
  --url https://api.iotools.cloud/v1/tool/heat-index-wind-chill-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "mode": "heat",
  "tempUnit": "f",
  "temperature": "90",
  "humidity": "70"
}
'

{
  "tool": "heat-index-wind-chill-calculator",
  "tool_version": "1.0.1",
  "outputs": {
    "results": [
      {
        "metric": "Feels-like heat index (°F)",
        "value": "105.9 °F"
      },
      {
        "metric": "Feels-like heat index (°C)",
        "value": "41.1 °C"
      },
      {
        "metric": "Actual temperature",
        "value": "90.0 °F"
      },
      {
        "metric": "Relative humidity",
        "value": "70%"
      },
      {
        "metric": "Difference from actual",
        "value": "+15.9 °F / +8.8 °C"
      },
      {
        "metric": "Safety category",
        "value": "Danger"
      },
      {
        "metric": "Safety guidance",
        "value": "Heat cramps and heat exhaustion are likely; heat stroke is possible. Limit outdoor activity, hydrate aggressively, and watch vulnerable people closely."
      },
      {
        "metric": "Formula",
        "value": "NWS Rothfusz regression"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}