Update: Apparently aliexpress added a check in shopping carts that shows "This item is unavailable due to age verification restrictions" and blocks the ability to go to checkout. I'll see what I can do.
You need tampermonkey extension or an alternative, and then you need to add the script to it.
$ claude mcp add age-verification-bypass-aliexpress \
-- python -m otcore.mcp_server <graph>