curl --request POST \
  --url https://api.iotools.cloud/v1/tool/character-encoding-detector \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "inputText": "Hello, World!",
  "file": ""
}
'

{
  "tool": "character-encoding-detector",
  "tool_version": "1.0.1",
  "outputs": {
    "summary": [
      {
        "property": "Detected Encoding",
        "value": "ASCII"
      },
      {
        "property": "Confidence",
        "value": "100%"
      },
      {
        "property": "BOM",
        "value": "None"
      },
      {
        "property": "Bytes Analyzed",
        "value": "13"
      },
      {
        "property": "Reasoning",
        "value": "Every byte is in the 0x00-0x7F range — valid 7-bit ASCII. ASCII is a strict subset of UTF-8, so this is simultaneously valid UTF-8."
      }
    ],
    "candidates": [
      {
        "encoding": "ASCII",
        "confidence": "100%",
        "signals": "Every byte is in the 0x00-0x7F range — valid 7-bit ASCII. ASCII is a strict subset of UTF-8, so this is simultaneously valid UTF-8."
      },
      {
        "encoding": "UTF-8",
        "confidence": "95%",
        "signals": "ASCII text is byte-for-byte identical to its UTF-8 encoding; listed as slightly less specific than the ASCII match above."
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}