Not sure how I missed that, but exactly what I needed.
Thank you.

Sorry, we do not provide static download links.
But I believe you can use (not abuse) SourceForce:
https://sourceforge.net/projects/winscp/files/WinSCP/

See sample code at:
https://superuser.com/q/1192445/213663#1192463

Is there a static download link for the WinSCP Automation archive?
The official page provides this link:
https://winscp.net/download/WinSCP-6.5.4-Automation.zip/download
However, the actual file resolves to a dynamic URL with a token that changes each time.

I want to download this archive using PowerShell. Is there a permanent/static link or an official method to automate this download?