curl --request POST \
  --url https://api.iotools.cloud/v1/tool/integer-base-converter \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "inputNumber": "255",
  "fromBase": "10",
  "toBase": "16"
}
'

{
  "tool": "integer-base-converter",
  "tool_version": "1.0.1",
  "outputs": {
    "result": "FF",
    "table": [
      {
        "base": "Binary (2)",
        "value": "11111111"
      },
      {
        "base": "Octal (8)",
        "value": "377"
      },
      {
        "base": "Decimal (10)",
        "value": "255"
      },
      {
        "base": "Hexadecimal (16)",
        "value": "FF"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}