curl --request POST \
  --url https://api.iotools.cloud/v1/tool/force-unit-converter \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "value": "1",
  "fromUnit": "kgf",
  "precision": "4"
}
'

{
  "tool": "force-unit-converter",
  "tool_version": "1.0.1",
  "outputs": {
    "table": [
      {
        "unit": "Newton (N)",
        "value": "9.8066"
      },
      {
        "unit": "Kilonewton (kN)",
        "value": "0.0098"
      },
      {
        "unit": "Meganewton (MN)",
        "value": "0"
      },
      {
        "unit": "Dyne (dyn)",
        "value": "980665"
      },
      {
        "unit": "Kilogram-force (kgf)",
        "value": "1"
      },
      {
        "unit": "Gram-force (gf)",
        "value": "1000"
      },
      {
        "unit": "Metric ton-force (tf)",
        "value": "0.001"
      },
      {
        "unit": "Pound-force (lbf)",
        "value": "2.2046"
      },
      {
        "unit": "Ounce-force (ozf)",
        "value": "35.274"
      },
      {
        "unit": "Poundal (pdl)",
        "value": "70.9316"
      },
      {
        "unit": "Short ton-force (US tonf)",
        "value": "0.0011"
      },
      {
        "unit": "Long ton-force (UK tonf)",
        "value": "0.001"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}