Homepage is nothing but "Sign in to continue" .. wow. Perhaps run an anonymous twin of the entire service too. See how they diverge over time. Expect massive legal and KYC stuff too. Maybe don't use a bank account anywhere and just accept direct crypto deposits?

Knowing where funds are spent can be very valuable market research. Useful in due-diligence. Best of luck.

This has done something odd to my brain.

The security issues and chance for direct harm makes me immediately recoil. "No, never, not even once as a joke." levels of nope. The sort of thing you would hear mentioned and move past without a second thought because obviously no one should or will ever do that.

...and yet it also feels like the sort of thing that could be a common, every day kind of thing. Is this really that different from an automated drop shipping company? A piece of logistics software that makes sure there are always pens and napkins?

I am going to stop thinking about this now. If MCP based automated purchasing is the future, I will let others build it.