Programmer to help get data to and from AirTable, Webflow CMS or Google Sheets

Well, the plugin by itself would not provide this functionality directly. It would allow you to move the data from Verge to WordPress using its API and JSON. You would then need to have the Word Press site have a user account system so you could store that data into the user accounts profile. Then on entering from a different computer/location/session…they would log back in using their credentials and WordPress would pass back to the verge app the JSON so it could be read back in by Verge and reset its configurator.

Based on the documentation it seems it allows you to write and read/retrieve json files. But you might have a different meaning of “read-in”. Could you elaborate on the meaning of “read-in” vs the explanation below and I might be able to understand more clearly the issue you are having?

From the website…..
Uploading Files
This feature allows the users to persistently store content created in Verge3D applications, such as taken screenshots, uploaded textures, and saved configurations.

To upload your file on the server use the following REST API method:

https://HOSTNAME/wp-json/verge3d/v1/upload_file/
Where HOSTNAME is the host name of your WordPress server, such as sandbox.soft8soft.com

Upon success this method returns the following JSON file with the info on the uploaded file:

{
“id”: THE_ID_OF_THE_UPLOADED_FILE,
“link”: LINK_TO_THE_UPLOADED_FILE,
“size”: FILE_SIZE
}
Use the link provided in the request to retrieve your file or use the ID and get_file REST API method:

https://HOSTNAME/wp-json/verge3d/v1/get_file/ID.

Verge 3d free backend system – Verge 3d tutorial

this might help