curl --request POST \
  --url https://api.iotools.cloud/v1/tool/color-scheme-generator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "baseColor": "#FF0000",
  "schemeType": "complementary"
}
'

{
  "tool": "color-scheme-generator",
  "tool_version": "1.0.1",
  "outputs": {
    "colorTable": [
      {
        "color": "Base",
        "hex": "#FF0000",
        "hsl": "hsl(0, 100%, 50%)"
      },
      {
        "color": "Complementary",
        "hex": "#00FFFF",
        "hsl": "hsl(180, 100%, 50%)"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}