curl --request POST \
  --url https://api.iotools.cloud/v1/tool/rent-affordability-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "income": "6000",
  "incomePeriod": "monthly",
  "monthlyDebt": "500",
  "utilities": "250",
  "rentPercent": "30",
  "dtiLimit": "40",
  "incomeMultiple": "40"
}
'

{
  "tool": "rent-affordability-calculator",
  "tool_version": "1.0.1",
  "outputs": {
    "results": [
      {
        "metric": "Gross Monthly Income",
        "value": "$6,000"
      },
      {
        "metric": "Affordable Monthly Rent",
        "value": "$1,800"
      },
      {
        "metric": "Limiting Factor",
        "value": "Budget rule — 30% of gross income"
      },
      {
        "metric": "Budget Rule Cap (30% of income)",
        "value": "$1,800"
      },
      {
        "metric": "Debt-Aware Cap (40% of income − debts)",
        "value": "$1,900"
      },
      {
        "metric": "Landlord Cap (annual income ÷ 40)",
        "value": "$1,800"
      },
      {
        "metric": "Utilities & Insurance",
        "value": "$250"
      },
      {
        "metric": "Total Housing Cost",
        "value": "$2,050"
      },
      {
        "metric": "Existing Debt Payments",
        "value": "$500"
      },
      {
        "metric": "Left Over Each Month",
        "value": "$3,450"
      },
      {
        "metric": "Rent as % of Gross Income",
        "value": "30%"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}