Methodology & Data Sources

Where our data comes from

Everything on Yu-Gi-Oh Card List is built from open, community-maintained data sources. We do not scrape Konami's official pages or marketplace sold-listing data. The snapshot is rebuilt periodically (typically when new sets or banlists drop) and the date of the current snapshot is shown above.

• Card data & prices — YGOPRODeck. Card names, text, types, stats, archetypes, and the marketplace figures behind our price hints come from the YGOPRODeck API (cardinfo, cardsets, and archetypes endpoints).
• Printing prices — TCGplayer via TCGCSV. Per-printing prices and TCGplayer product links come from TCGCSV, a daily copy of TCGplayer's Yu-Gi-Oh product and price data. Each price is dated by TCGCSV's own publish time.
• Set & product data — YGOJSON. Set, sealed-product, and series metadata is drawn from YGOJSON (MIT licensed).
• Banlists — YAML-Yugi. The current and historical TCG, OCG, and Master Duel limit regulations come from YAML-Yugi (DawnbrandBots).
• Card history & localized names — YGOResources. Official card names in other languages and some card-text corrections come from the YGOResources card-history dataset, used with the maintainer's permission.
• Card images — YGOPRODeck. Card art is downloaded from YGOPRODeck and cached on our own servers rather than hot-linked. For every cached image we keep the original source URL, the fetch date, and a checksum for attribution and verification.

How the price hint is computed

Each card's “approximate value” is a single, deliberately conservative price hint, not a market price. We read YGOPRODeck's per-card price block and take the lowest non-zero USD figure across the TCGplayer, eBay, Amazon, and CoolStuffInc fields. Cardmarket is excluded because it is quoted in euros. Zero, blank, negative, and implausibly large values (parse failures) are discarded.

We choose the lowest non-zero figure on purpose: it is the value least likely to read as “expensive” when a card is not, and it avoids a single inflated listing making a common card look valuable. This per-card figure is never shown on a row for one printing: it belongs to no rarity. Card lists (home, guides, search, archetypes) show the card's most valuable priced printing, and fall back to this per-card figure, marked “card-level lowest”, when no printing has a price.

Rows for one printing (a set code and rarity, on set pages, set price lists, and a card's printings table) use TCGplayer's figure for that exact printing when we can match it. The match is exact: the TCGplayer product must be in that set, carry the same set code, and have the same rarity, and exactly one product may match. If two products match (for example a plain and an Extended Art version with the same code), the row shows no TCGplayer price rather than guess. TCGplayer prices each edition (1st Edition, Unlimited, Limited) separately, so the row names the edition; we use TCGplayer's market price figure, never its highest listing. A printing we cannot match shows YGOPRODeck's own figure for that printing, marked “YGOPRODeck”, or a dash when it has none.

Limitations

The price hint is a rough indicator from recently observed listings, not an appraisal, offer, or official value. Real prices vary enormously with the specific printing, set code, rarity, edition, language, condition, and grading — a single card name can span cheap reprints and four-figure first-edition copies. Always check current marketplace listings (including sold listings) before buying or selling. See the disclaimer for the full pricing caveat.

Intellectual property

Yu-Gi-Oh!, all card names, card text, artwork, logos, characters, and related marks are the property of Konami, Studio Dice, Shueisha, TV Tokyo, and their respective owners. All rights to that material remain with those owners. Yu-Gi-Oh Card List claims no ownership of it and displays it for identification and reference only.

Yu-Gi-Oh Card List is an unofficial fan-made database and is not affiliated with, endorsed by, sponsored by, or approved by Konami, Studio Dice, Shueisha, TV Tokyo, or their affiliates. Yu-Gi-Oh! card names, text, images, and related marks are property of their respective owners.

Corrections and takedown requests

If you are a rights holder and want content removed, or if you spot an error in our data, contact us and we will respond promptly. Takedown requests: takedown@yugiohcardlist.com. General corrections and questions: hello@yugiohcardlist.com.

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