curl --request POST \
  --url https://api.iotools.cloud/v1/tool/json-to-csv-converter \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonSource": "[{\"name\":\"John Doe\",\"age\":30,\"city\":\"New York\"},{\"name\":\"Jane Doe\",\"age\":25,\"city\":\"Los Angeles\"}]",
  "delimiter": ",",
  "includeHeaders": "true",
  "flatten": "true"
}
'

{
  "tool": "json-to-csv-converter",
  "tool_version": "1.0.1",
  "outputs": {
    "csv": "name,age,city\nJohn Doe,30,New York\nJane Doe,25,Los Angeles"
  },
  "credits_used": 3,
  "credits_remaining": null
}