curl --request POST \
  --url https://api.iotools.cloud/v1/tool/confidence-interval-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "mode": "mean",
  "sampleSize": "25",
  "sampleMean": "100",
  "sampleStdDev": "15",
  "confidenceLevel": "95"
}
'

{
  "tool": "confidence-interval-calculator",
  "tool_version": "1.0.1",
  "outputs": {
    "result": [
      {
        "metric": "Point Estimate",
        "value": "100.00"
      },
      {
        "metric": "Margin of Error",
        "value": "±5.88"
      },
      {
        "metric": "95% Confidence Interval",
        "value": "[94.12, 105.88]"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}