About OPData
Market context for One Piece card collectors
OPData is an independent One Piece Card Game market-data platform. It brings raw and graded prices, recent sold activity, grading populations, release information, and collection tools together so collectors can research a specific printing without piecing the story together across several marketplaces.
Why the site exists
A single card number can represent a base card, alternate art, promotional printing, event card, or reprint. Treating those as one item creates misleading price histories. OPData is built around the printing: the exact version of the card a collector owns or is considering. That printing-first approach is used for card pages, portfolio lots, watchlists, raw prices, and graded comparisons.
The goal is not to predict which card will rise next. The goal is to make the available evidence easier to inspect: current prices, changes over time, actual sold activity, grader-specific results, population context, and the limitations behind each number.
What you can research
- Daily raw-card market prices and price history by printing.
- PSA, BGS, CGC, and SGC graded prices derived from relevant sold listings.
- Gem rates and population counts when a printing can be matched confidently.
- Seven-day sold activity, recent sales, market movers, and card liquidity.
- Set-level market summaries and clearly labeled community pull-rate estimates.
- English and Japanese product release dates and sealed-product pricing.
- Private portfolio, binder, watchlist, alert, and dealer workflows.
Independence and attribution
OPData is not affiliated with, endorsed by, or sponsored by Bandai, Toei Animation, Shueisha, TCGPlayer, eBay, or any grading company. One Piece names, card images, and related trademarks belong to their respective owners and are presented for cataloging and informational purposes.
Marketplace data and third-party population data remain subject to the coverage, timing, corrections, and terms of their original sources. OPData adds organization, printing-level matching, aggregation, and analysis; it does not claim that any market feed is complete or that a displayed price is a guaranteed sale value.
Corrections and contact
Market datasets are imperfect. A listing may be mislabeled, a new parallel may need a separate identity, or a marketplace may revise its catalog. Card pages include a report tool for printing, image, price, and graded-data issues. For a general question or a correction that cannot be submitted from a card page, email errorreport@onepiecedata.com.
Useful reports include the card number, printing name, page URL, the value that appears incorrect, and a public source that supports the correction. Reports are reviewed before manual overrides or classifier changes are applied.