curl --request POST \
  --url https://api.iotools.cloud/v1/tool/bmr-tdee-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "weight": "80",
  "weightUnit": "kg",
  "height": "180",
  "heightUnit": "cm",
  "age": "30",
  "sex": "male",
  "activityLevel": "1.55"
}
'

{
  "tool": "bmr-tdee-calculator",
  "tool_version": "1.0.1",
  "outputs": {
    "results": [
      {
        "metric": "BMR (Basal Metabolic Rate)",
        "value": "1780 calories/day"
      },
      {
        "metric": "TDEE (Total Daily Energy Expenditure)",
        "value": "2759 calories/day"
      },
      {
        "metric": "Weight Loss (-500 cal/day)",
        "value": "2259 calories/day"
      },
      {
        "metric": "Weight Gain (+500 cal/day)",
        "value": "3259 calories/day"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}