I guess I will write a powershell script to enumerate the sessions from the registry. I just assumed winscp scripting could enumerate its own sessions.

Stored sessions are saved either as sections of an INI file or Keys in registry. You can iterate those.
https://winscp.net/eng/docs/config

I need to write a script to loop through around 150 saved sessions to preform some file management. I cannot find any documentation for script/cli commands to access saved sessions. Any ideas?