curl --request POST \
  --url https://api.dirtroad.dev/tools/number-base-converter/hex-to-decimal \
  --header 'Content-Type: application/json' \
  --header 'X-Payment: <api-key>' \
  --data '
{
  "hex": "<string>"
}
'

{
  "original": "<string>",
  "fromBase": 123,
  "toBase": 123,
  "result": "<string>",
  "resultNumber": 123,
  "resultString": "<string>",
  "decimalValue": 123
}