curl --request POST \
  --url https://api.iotools.cloud/v1/tool/compound-interest-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "principal": "10000",
  "rate": "7",
  "time": "10",
  "frequency": "12",
  "contribution": "0"
}
'

{
  "tool": "compound-interest-calculator",
  "tool_version": "1.0.1",
  "outputs": {
    "summary": [
      {
        "metric": "Future Value",
        "value": "$20,096.61"
      },
      {
        "metric": "Total Contributions",
        "value": "$10,000.00"
      },
      {
        "metric": "Total Interest Earned",
        "value": "$10,096.61"
      }
    ],
    "schedule": [
      {
        "year": "1",
        "contributions": "$10,000.00",
        "interest": "$722.90",
        "balance": "$10,722.90"
      },
      {
        "year": "2",
        "contributions": "$10,000.00",
        "interest": "$1,498.06",
        "balance": "$11,498.06"
      },
      {
        "year": "3",
        "contributions": "$10,000.00",
        "interest": "$2,329.26",
        "balance": "$12,329.26"
      },
      {
        "year": "4",
        "contributions": "$10,000.00",
        "interest": "$3,220.54",
        "balance": "$13,220.54"
      },
      {
        "year": "5",
        "contributions": "$10,000.00",
        "interest": "$4,176.25",
        "balance": "$14,176.25"
      },
      {
        "year": "6",
        "contributions": "$10,000.00",
        "interest": "$5,201.06",
        "balance": "$15,201.06"
      },
      {
        "year": "7",
        "contributions": "$10,000.00",
        "interest": "$6,299.94",
        "balance": "$16,299.94"
      },
      {
        "year": "8",
        "contributions": "$10,000.00",
        "interest": "$7,478.26",
        "balance": "$17,478.26"
      },
      {
        "year": "9",
        "contributions": "$10,000.00",
        "interest": "$8,741.77",
        "balance": "$18,741.77"
      },
      {
        "year": "10",
        "contributions": "$10,000.00",
        "interest": "$10,096.61",
        "balance": "$20,096.61"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}