Terms of use

Last updated August 31, 2026.

The service

GapCards is a collection tracker for Marvel Masterpieces trading cards, provided as-is while in beta. We work hard on catalog accuracy — checklists come from manufacturer checklists and documented sources — but we can't guarantee every run, odd, or card list is error-free, and none of it is investment advice or an appraisal.

Your account

You're responsible for your login and for what you enter. Don't abuse the service (scraping the API beyond reason, attempting to reach other collectors' data, or anything unlawful); we may suspend accounts that do.

Your data

Your collection data is yours. You can export it at any time; deleting your account deletes it. See the privacy page for what we collect.

Changes

These terms may change as the product grows (a marketplace is planned, which will bring payment terms of its own). We'll date changes at the top of this page. Questions: email us.

GapCards is an independent collector tool, not affiliated with or endorsed by Marvel, Upper Deck, SkyBox, or Fleer.