cardboard.swap
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Swap trading post
Bulk team/year/set trading for base-card collectors — without per-card inventory.
Matches
A future matching engine can surface overlapping Haves here based on active Wants. This scaffold keeps the page shape in place without pretending live personalization exists yet.
Strong fit
Team, year, and set line up cleanly between a public Have and one of your active Wants.
Worth a look
The team is right, but year or set flexibility still needs a collector-to-collector conversation.
Needs account context
This is where Stack-linked identity, active Wants, and in-app match ranking can plug in later without changing the route.