キラカード
紹介 About Kiraworth
Kira (キラ) is the sparkle on a holographic card. Kiraworth is a public notebook for people outside Japan who want that card without guessing the landed cost. Yu-Gi-Oh is the long example. Pokémon Storm Emerada and a few One Piece OP-17 prints now have shop asks too. Magic is not on the site yet.
There are no accounts and no database. Fees, prices, and release dates are files in the site repository. A number is either copied from a page we checked, or it is marked Estimate so you can replace it.
What a price on this site is
The headline on each YAC1 page is a CardRush sell ask read on 13 October 2026, with the product URL and that date. 状態A- and 状態B asks from the same search sit underneath it. Rows from the 26–27 September 2026 sheet stay on the page and say “as of Sep 27, 2026 (not yet re-verified).” A working range is that sheet’s synthesis. A 買取 price is what a shop pays, a floor only. None of it is a price Kiraworth will honor. There is no eBay or TCGplayer column, because inventing a US price would be worse than leaving it off. Anything older than 7 days shows a Needs re-check badge.
Affiliate disclosure
This version does not use affiliate links. Buttons and text links to Buyee, ZenMarket, Konami, Japan Post, and the shops are ordinary links. If an affiliate program is added later, those links will be labeled on this page and next to the link. Kiraworth does not take a fee from you for using the calculator.
Correct a number
Fees live in src/data/fees.json. Card prices live in src/data/cards.json. Releases live in src/data/releases.json. Each record needs a source URL, a last-checked date, and an estimate flag. The README explains the edit. If a proxy changes a fee and the file is stale, the calculator is stale with it — the date on the line is there so you can see that.