curl --request POST \
  --url https://api.iotools.cloud/v1/tool/list-converter \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "inputList": "apple\nbanana\ncherry",
  "inputFormat": "newline",
  "outputFormat": "comma",
  "trimItems": "true",
  "removeEmpty": "true",
  "removeDuplicates": "",
  "sortItems": ""
}
'

{
  "tool": "list-converter",
  "tool_version": "1.0.1",
  "outputs": {
    "outputList": "apple, banana, cherry"
  },
  "credits_used": 3,
  "credits_remaining": null
}