Frequently asked questions
What is Cardboard Deals?
Cardboard Deals is a live deal finder for trading cards: Magic: The Gathering and the One Piece Card Game. We scan eBay around the clock, identify each card or sealed product, and flag listings priced below the going market rate so you can spot a good buy without watching the marketplace yourself.
Which games do you cover?
Magic: The Gathering and the One Piece Card Game, on eBay UK and eBay US: singles, graded slabs and sealed product. One Piece covers English and Japanese printings, each priced against its own market.
How do you decide something is a deal?
Each game has its own parser that reads a listing's title and matches it to one exact printing or sealed product. We build a market benchmark for that printing from reference prices and recent sales, tracked separately for raw and graded copies, and flag a listing when its asking price sits a meaningful percentage below it. The percentage below market is shown on every deal.
Is it free?
Yes. The deals feed, card pages and price history are free on the website. The mobile app is free too, with the live feed, the card scanner and your collection. Real-time alerts run through Discord (free) and the app, where custom deal rules with push alerts are part of Premium.
Do you verify that listings are genuine?
No. We surface eBay listings and our automated card matching is not perfect. Always check the seller's feedback and the card's price history before buying — counterfeits exist, and a price that looks too good can be a red flag rather than a bargain.
Where do your prices and card data come from?
Magic: The Gathering card identity (names, sets, collector numbers, finishes) comes from Scryfall, with TCGplayer and Cardmarket reference prices; One Piece Card Game cards, sealed products and US prices come from TCGplayer's catalogue, and Japanese printings are priced from Cardmarket's price guide. Prices also come from marketplace listings and recent eBay sales. Analytics are normalised to GBP under the hood; each listing also shows its native marketplace currency.
Do you earn commission on purchases?
Yes. Links out to eBay and TCGplayer are affiliate links, so we may earn a commission on qualifying purchases at no extra cost to you. It never changes the price you pay or which deals we show.
How often is everything updated?
The pipeline polls marketplaces throughout the day, re-prices cards and refreshes the deals feed continuously, so prices and the below-market percentages reflect recent activity.
See also how it works.