curl --request POST \
  --url https://api.iotools.cloud/v1/tool/color-temp-converter \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "kelvin": "6500"
}
'

{
  "tool": "color-temp-converter",
  "tool_version": "1.0.1",
  "outputs": {
    "colorTable": [
      {
        "format": "Kelvin",
        "value": "6500K"
      },
      {
        "format": "Hex",
        "value": "#FFFEFA"
      },
      {
        "format": "RGB",
        "value": "rgb(255, 254, 250)"
      },
      {
        "format": "CSS",
        "value": "rgb(255, 254, 250)"
      },
      {
        "format": "HSL",
        "value": "hsl(48, 100%, 99%)"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}