Hi Renan,
Greetings,
As of now, we don't have such kind of API which will upload the multiple files at same, there will be single file processed by the server at a time. In case if you have written your own custom logic for uploading the multiple files using the for loop, the server will be processed and upload the file one by one but at the time it will upload the single file.
In case if you have any other queries please do feel free to reach out to us.
We will be happy to help you.
Regards,
Priyanka Singh
App42 Team