curl --request POST \
  --url https://api.iotools.cloud/v1/tool/irregular-polygon-area-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "vertices": "0,0\n4,0\n4,3\n0,3"
}
'

{
  "tool": "irregular-polygon-area-calculator",
  "tool_version": "1.0.1",
  "outputs": {
    "results": [
      {
        "metric": "Vertices",
        "value": "4"
      },
      {
        "metric": "Area",
        "value": "12"
      },
      {
        "metric": "Perimeter",
        "value": "14"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}