Is there an AI that will scan my inbox and auto-del links requiring logins to read?

Sounds like it would take a pretty complex algorithm to check the associated URLs and make that determination.
But if nothing exists to fit the need, I can see potential demand.

Honestly this is not an issue for me because one I delete any email that is not standard stuff related to bill paying, etc. and two, I don't click on any questionable links.
I would recommend that if the topic of the email seems interesting, simply do a separate search in something like Microsoft's CoPilot on the topic and specify non-paywall information.
Good luck.

Microsoft Power Automate allows you to create workflows that scan emails for specific keywords or patterns. You could design a workflow that flags or forwards emails containing login-required links.