In case you are referring to those details as shown in tab "System Information" on devices in PRTG, there is currently no API to retrieve that data. However, the data is stored in PRTG's data path as json files, by default this would be C:\ProgramData\Paessler\PRTG Network Monitor\System Information Database, so you can use a script of your own to pull data out of them.
Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.