Last updated July 2026.
You are responsible for the activity on your account and for keeping your login secure. One account per person.
You keep ownership of your photos and collection data. By making an item or post public you allow other users to view it inside CardBoard and through links you share.
Market values and AI grade estimates are informational only and are not an appraisal or a guarantee of sale price. Deals arranged through the feed or private messages are between the users involved; CardBoard is not a party to them and does not process payments.
No counterfeit items, fraudulent listings, harassment or spam. We may remove content or suspend accounts that break these rules.