About OnePieceCardValue

OnePieceCardValue is an independent price-tracking platform built for One Piece Card Game collectors and investors. Our goal is simple: give you real, current prices for every card across the major marketplaces — eBay and TCGPlayer — in one place, updated daily.

Our mission

Card prices change daily, and good information shouldn't live behind paywalls or require five browser tabs. We track One Piece Card Game cards across every English-language set from OP-01 Romance Dawn through the latest release, surface real market data from eBay and TCGPlayer, and let you compare prices instantly.

What we offer

Live pricing across major marketplaces — TCGPlayer market and lowest listings, plus eBay active listings with low, median, average and high prices.

Market analytics — daily price snapshots stored in our database power gainers/losers lists, per-set performance, and trend tracking.

Complete catalog — every card from every English-language set is searchable and linkable, with rarity, type, color, cost, power, counter, and effect data.

Buying guides and analysis — original blog posts covering chase cards, investment angles, grading, and market trends.

How prices work

Our pricing pipeline runs nightly. We fetch current TCGPlayer market prices through the OPTCG API, query active eBay listings via the eBay Browse API, and snapshot the results to our database. Each card page also shows live eBay listings fetched in real time when you visit. The result: a price you can trust within ~24 hours of true market state, plus the option to click through and verify the latest listing yourself.

Data sources

Graded card prices — PSA 10, PSA 9 and the rest of the grade ladder shown in our grading calculator — come from PriceCharting, used with attribution under their price data terms. Raw card prices shown elsewhere on the site come from the OPTCG API and the eBay Browse API, and are not PriceCharting data.

Affiliate disclosure

OnePieceCardValue participates in affiliate programs with the eBay Partner Network and TCGPlayer Impact. When you click through to a marketplace and make a purchase, we may earn a small commission at no additional cost to you. These commissions help us cover server costs and continue to develop new features. We don't recommend cards or marketplaces based on commission rates; the data shown is what the marketplace reports.

Not affiliated with Bandai

OnePieceCardValue is an independent third-party tool. We are not affiliated with, endorsed by, or sponsored by Bandai Co., Ltd. or any official One Piece Card Game distributor. All character names, artwork, and trademarks are the property of their respective owners and are used for identification purposes only.

Get in touch

Have a question, suggestion, or correction? Visit our Contact page — we read everything.