curl --request POST \
  --url https://api.dirtroad.dev/tools/string-utils/starts-with \
  --header 'Content-Type: application/json' \
  --header 'X-Payment: <api-key>' \
  --data '
{
  "str": "<string>",
  "prefix": "<string>",
  "caseSensitive": false
}
'

{
  "str": "<string>",
  "prefix": "<string>",
  "caseSensitive": true,
  "result": true
}