curl --request POST \
  --url https://api.iotools.cloud/v1/tool/customer-lifetime-value-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "ecommerce",
  "avgOrderValue": "75",
  "purchaseFrequency": "4",
  "customerLifespan": "3",
  "grossMargin": "60",
  "cac": "150"
}
'

{
  "tool": "customer-lifetime-value-calculator",
  "tool_version": "1.0.1",
  "outputs": {
    "result": [
      {
        "metric": "Annual Customer Value",
        "value": "$300.00"
      },
      {
        "metric": "Gross CLV (Revenue)",
        "value": "$900.00"
      },
      {
        "metric": "Net CLV (Profit)",
        "value": "$540.00"
      },
      {
        "metric": "Avg Customer Lifespan",
        "value": "3.00 years"
      },
      {
        "metric": "CAC",
        "value": "$150.00"
      },
      {
        "metric": "Net CLV : CAC",
        "value": "3.60 : 1"
      },
      {
        "metric": "LTV : CAC Verdict",
        "value": "Healthy — the ideal 3:1 to 5:1 range"
      },
      {
        "metric": "Payback Period",
        "value": "0.83 years"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}