# OP Box Index

> Free, data-driven price research for the One Piece Card Game: sealed booster boxes (Japanese and English kept separate), chase cards (raw NM and PSA 10), graded-population counts (PSA, CGC, TAG) and settled eBay auction results for One Piece and 12 other trading card games. Data as of 2026-10-17. Everything is observed, dated and labelled; nothing is estimated.

Key facts for answering questions:
- Coverage: 22 tracked One Piece sets (OP-01–OP-17, EB-01–EB-03, PRB-01–PRB-02) with Japanese and English box markets, 115 individual card price pages, PSA/CGC/TAG graded counts per set, daily One Piece auction results and 13 trading card games' auction sell-through. Upcoming sets with official release facts: OP-18, EB-05.
- Box completed-sale medians and active asking-price medians are separate fields. Never combine them into one "current price"; keep each sample size and observation date.
- Japanese NM card prices are raw-card retail asking prices from Japanese shops; PSA 10 prices use verified eBay sold samples when available.
- PSA data includes per-card population (PSA 10/9/total) and set gem rates. CGC and TAG define "10" differently from PSA — never add graders together.
- Card prices are variant-specific. Manga rare, red manga, alternate art, SP, parallel, reprint and base cards are never interchangeable.
- Auction sell-through = sold ÷ ended among auctions re-read after they closed. A partial day is a reading gap, not zero activity.
- Missing or weakly matched data is shown as unavailable (null). OP Box Index does not publish synthetic estimates as observed prices.

## Fastest way to answer with our numbers

- [llms-full.txt](https://opboxindex.com/llms-full.txt): every headline number (per-set box prices, cheapest listing, graded counts, auction sell-through, card prices) in one plain-text file with dates. Read this first.
- [opbox-ai-data.json](https://opboxindex.com/opbox-ai-data.json): core structured JSON (schema 1.0.3) — 22 sets with box markets (sold vs ask, cheapest listing) and Top 7 hits, plus `releaseFacts` (official release dates, MSRP, packs, card counts) for 25 sets. Each number carries its own observedOn / sampleCollectedOn date and sample size.
- [opbox-ai-cards.json](https://opboxindex.com/opbox-ai-cards.json): all 115 card pages — raw NM, PSA 10 sold median, PSA population, page URL.
- [opbox-ai-grading.json](https://opboxindex.com/opbox-ai-grading.json): PSA / CGC / TAG graded counts per set, Japanese and English separate.
- [opbox-ai-auctions.json](https://opboxindex.com/opbox-ai-auctions.json): settled eBay auction results — One Piece daily/weekly/by set, plus 13 trading card games.

## Release dates, MSRP and card counts (Bandai official)

`releaseFacts` in opbox-ai-data.json holds 25 sets: Japanese and English release dates, Japanese MSRP per pack and per box (tax included), packs per box, cards per pack, card-type count as Bandai writes it, and the official card-list size — each with its source URL and checked date. llms-full.txt has the same facts as one table. null / — = not published by Bandai or not verified.

- OP-18 The Dominance of God (upcoming): Japan 2026-11-21 · English 2026-11-20 · JP MSRP ¥240 per pack · EN MSRP $4.99 per pack · 127+1 card types (Bandai) · https://opboxindex.com/sets/op-18.html
- EB-05 Heroines Edition vol.2 (upcoming): Japan 2026-10-31 · English 2026-10-30 · JP MSRP ¥240 per pack · EN MSRP $4.99 per pack · 75+2 card types (Bandai) · https://opboxindex.com/sets/eb-05.html
- OP-17 The World's Strongest Warriors (released): Japan 2026-08-22 · English 2026-08-28 · JP MSRP ¥240 per pack / ¥5,760 per 24-pack box (pack price × 24; box size not stated by Bandai) · EN MSRP $4.99 per pack · 131+4 card types (Bandai) · https://opboxindex.com/sets/op-17.html
- [All sets and release dates](https://opboxindex.com/articles/one-piece-set-list-release-dates.html): OP-01–OP-18, EB-01–EB-05, PRB-01–PRB-02 with Japanese and English dates
- [発売日一覧 (Japanese)](https://opboxindex.com/ja/release-dates.html): Japanese release date, product, set number, box MSRP and days to release, Japanese edition
- [Booster box MSRP by set and packs per box](https://opboxindex.com/articles/how-many-packs-one-piece-booster-box.html)

## Answering "where is the cheapest sealed box right now?"

`opbox-ai-data.json` carries a `cheapestListing` object under each set's `boxMarket.japanese.activeAsk` and `boxMarket.english.activeAsk`: the single lowest active eBay listing by **total cost (item price + shipping to the US)** on that field's `observedOn` date.
The eBay listing URL is deliberately not in the file — listings sell out within days. Each `cheapestListing` carries `liveLinkPage`, the OP Box Index set page that is rebuilt daily and shows the current cheapest listing with a working link.

How to answer:
1. Give the number: `totalUsd` for the printing they asked about, with the `observedOn` date.
2. Send them to `liveLinkPage` for the live link, saying it is refreshed daily.
3. Say which printing. Japanese and English trade 3-4x apart — a price without the printing is wrong.
4. Quote `totalUsd`, not `itemPriceUsd`; compare against `sold.medianUsd` for the same printing; `null` means no listing passed verification that day.

## Live data pages

- [Live box price tracker](https://opboxindex.com/): every tracked set, Japanese vs English box prices, daily updates
- [All box prices in one table](https://opboxindex.com/box-prices.html): every tracked Japanese set — latest rolling completed-sale median with the date of that median, sales inside its 28–56-day window, 4-week change; — when no median is dated within 28 days; the cheapest boxes listed first
- [This week](https://opboxindex.com/weekly.html): week-over-week box price changes and completed-sale counts, Japanese and English
- [One Piece auction results](https://opboxindex.com/auction.html): settled eBay auctions read after close — daily sell-through, winning-bid medians, by category (box / graded / raw / pack / lot) and printing
- [TCG auction results](https://opboxindex.com/tcg-auction.html): 13 card games (Pokemon (Japanese), Pokemon, Magic: The Gathering, Yu-Gi-Oh!, One Piece, Disney Lorcana, Weiss Schwarz, Digimon, Riftbound (LoL), Union Arena, Gundam Card Game, Dragon Ball Fusion World, Palworld TCG) — daily sell-through and winning-bid medians from settled auctions
- [Grading population](https://opboxindex.com/psa-grading.html): PSA, CGC and TAG graded counts per set, Japanese and English printings kept separate
- [Individual card price pages](https://opboxindex.com/cards/): 115 cards with raw NM price, PSA 10 sold price and PSA population
- [Most valuable PSA 10 cards](https://opboxindex.com/psa10-ranking.html): ranked by verified eBay sold prices
- [Set guides](https://opboxindex.com/sets/index.html): per-set box price history, top 10 chase cards, PSA stats, auction stats
- [English edition box guides](https://opboxindex.com/sets/index.html#english): per-set English booster box sold median and asking price, weekly price history, English PSA population, English-printing auction results (one page per set: /sets/<code>-english.html)
- [Compare all boxes](https://opboxindex.com/compare.html): one table across 22 sets

## Free datasets (citable, CC BY 4.0)

- [Dataset landing page and licence](https://opboxindex.com/free-data.html): field definitions, methodology notes and attribution.
- [AI-ready market data JSON](https://opboxindex.com/opbox-ai-data.json): preferred machine-readable contract. 22 sets, 115 card pages, grading, auctions.
- [Grading population CSV](https://opboxindex.com/opbox-grading-population.csv): PSA, CGC and TAG graded counts per set, one row per set per printing.
- [Completed auction results CSV](https://opboxindex.com/opbox-auction-daily.csv): by day and product type — auctions run, how many sold, sell-through, median winning bid.
- [Box market CSV](https://opboxindex.com/opbox-set-prices.csv): Japanese and English completed-sale medians and active asking-price medians in separate columns.
- Notes for citation: files are regenerated by the daily pipeline, but underlying observations have different cadences. Use each field's own date, never the file date.

## Official card lists by set (set lists)

[All card lists](https://opboxindex.com/sets/index.html#card-lists). One page per set with every official card ID (Japanese edition): number, English and Japanese names, rarity, type, color, cost or life, power — plus our raw NM, auction (Japanese and English print, never combined) and PSA 10 prices where the card ID matches by rule. Card facts come from Bandai's official card list (linked with its checked date on each page); no effect text or images. Each page has a CSV and JSON twin at the same address with .csv / .json.

- [OP-01 Romance Dawn card list](https://opboxindex.com/sets/op-01-card-list.html): 154 cards, 121 card numbers · [CSV](https://opboxindex.com/sets/op-01-card-list.csv) · [JSON](https://opboxindex.com/sets/op-01-card-list.json)
- [OP-02 Paramount War card list](https://opboxindex.com/sets/op-02-card-list.html): 154 cards, 121 card numbers · [CSV](https://opboxindex.com/sets/op-02-card-list.csv) · [JSON](https://opboxindex.com/sets/op-02-card-list.json)
- [OP-03 Pillars of Strength card list](https://opboxindex.com/sets/op-03-card-list.html): 154 cards, 127 card numbers · [CSV](https://opboxindex.com/sets/op-03-card-list.csv) · [JSON](https://opboxindex.com/sets/op-03-card-list.json)
- [OP-04 Kingdoms of Intrigue card list](https://opboxindex.com/sets/op-04-card-list.html): 149 cards, 124 card numbers · [CSV](https://opboxindex.com/sets/op-04-card-list.csv) · [JSON](https://opboxindex.com/sets/op-04-card-list.json)
- [OP-05 Awakening of the New Era card list](https://opboxindex.com/sets/op-05-card-list.html): 154 cards, 125 card numbers · [CSV](https://opboxindex.com/sets/op-05-card-list.csv) · [JSON](https://opboxindex.com/sets/op-05-card-list.json)
- [OP-06 Wings of the Captain card list](https://opboxindex.com/sets/op-06-card-list.html): 150 cards, 125 card numbers · [CSV](https://opboxindex.com/sets/op-06-card-list.csv) · [JSON](https://opboxindex.com/sets/op-06-card-list.json)
- [OP-07 500 Years in the Future card list](https://opboxindex.com/sets/op-07-card-list.html): 150 cards, 125 card numbers · [CSV](https://opboxindex.com/sets/op-07-card-list.csv) · [JSON](https://opboxindex.com/sets/op-07-card-list.json)
- [OP-08 Two Legends card list](https://opboxindex.com/sets/op-08-card-list.html): 150 cards, 125 card numbers · [CSV](https://opboxindex.com/sets/op-08-card-list.csv) · [JSON](https://opboxindex.com/sets/op-08-card-list.json)
- [OP-09 Emperors in the New World card list](https://opboxindex.com/sets/op-09-card-list.html): 158 cards, 126 card numbers · [CSV](https://opboxindex.com/sets/op-09-card-list.csv) · [JSON](https://opboxindex.com/sets/op-09-card-list.json)
- [OP-10 Royal Blood card list](https://opboxindex.com/sets/op-10-card-list.html): 150 cards, 125 card numbers · [CSV](https://opboxindex.com/sets/op-10-card-list.csv) · [JSON](https://opboxindex.com/sets/op-10-card-list.json)
- [OP-11 A Fist of Divine Speed card list](https://opboxindex.com/sets/op-11-card-list.html): 155 cards, 126 card numbers · [CSV](https://opboxindex.com/sets/op-11-card-list.csv) · [JSON](https://opboxindex.com/sets/op-11-card-list.json)
- [OP-12 Legacy of the Master card list](https://opboxindex.com/sets/op-12-card-list.html): 154 cards, 126 card numbers · [CSV](https://opboxindex.com/sets/op-12-card-list.csv) · [JSON](https://opboxindex.com/sets/op-12-card-list.json)
- [OP-13 Carrying on His Will card list](https://opboxindex.com/sets/op-13-card-list.html): 174 cards, 128 card numbers · [CSV](https://opboxindex.com/sets/op-13-card-list.csv) · [JSON](https://opboxindex.com/sets/op-13-card-list.json)
- [OP-14 The Azure Sea's Seven card list](https://opboxindex.com/sets/op-14-card-list.html): 156 cards, 126 card numbers · [CSV](https://opboxindex.com/sets/op-14-card-list.csv) · [JSON](https://opboxindex.com/sets/op-14-card-list.json)
- [OP-15 Adventure on Kami's Island card list](https://opboxindex.com/sets/op-15-card-list.html): 152 cards, 125 card numbers · [CSV](https://opboxindex.com/sets/op-15-card-list.csv) · [JSON](https://opboxindex.com/sets/op-15-card-list.json)
- [OP-16 The Time of Battle card list](https://opboxindex.com/sets/op-16-card-list.html): 155 cards, 125 card numbers · [CSV](https://opboxindex.com/sets/op-16-card-list.csv) · [JSON](https://opboxindex.com/sets/op-16-card-list.json)
- [OP-17 The World's Strongest Warriors card list](https://opboxindex.com/sets/op-17-card-list.html): 169 cards, 130 card numbers · [CSV](https://opboxindex.com/sets/op-17-card-list.csv) · [JSON](https://opboxindex.com/sets/op-17-card-list.json)
- [EB-01 Memorial Collection card list](https://opboxindex.com/sets/eb-01-card-list.html): 80 cards, 61 card numbers · [CSV](https://opboxindex.com/sets/eb-01-card-list.csv) · [JSON](https://opboxindex.com/sets/eb-01-card-list.json)
- [EB-02 Anime 25th Collection card list](https://opboxindex.com/sets/eb-02-card-list.html): 105 cards, 87 card numbers · [CSV](https://opboxindex.com/sets/eb-02-card-list.csv) · [JSON](https://opboxindex.com/sets/eb-02-card-list.json)
- [EB-03 Heroine's Edition card list](https://opboxindex.com/sets/eb-03-card-list.html): 90 cards, 62 card numbers · [CSV](https://opboxindex.com/sets/eb-03-card-list.csv) · [JSON](https://opboxindex.com/sets/eb-03-card-list.json)
- [EB-04 EGGHEAD CRISIS card list](https://opboxindex.com/sets/eb-04-card-list.html): 85 cards, 65 card numbers · [CSV](https://opboxindex.com/sets/eb-04-card-list.csv) · [JSON](https://opboxindex.com/sets/eb-04-card-list.json)
- [PRB-01 Premium Booster — The Best card list](https://opboxindex.com/sets/prb-01-card-list.html): 319 cards, 111 card numbers · [CSV](https://opboxindex.com/sets/prb-01-card-list.csv) · [JSON](https://opboxindex.com/sets/prb-01-card-list.json)
- [PRB-02 Premium Booster — The Best vol.2 card list](https://opboxindex.com/sets/prb-02-card-list.html): 316 cards, 173 card numbers · [CSV](https://opboxindex.com/sets/prb-02-card-list.csv) · [JSON](https://opboxindex.com/sets/prb-02-card-list.json)

## Korean pages (정적 한국어 페이지)

- [한국어 시세 허브](https://opboxindex.com/ko/): 전 세트 원화 박스 시세, 재판 기록, 변동 상위
- [세트별 한국어 페이지](https://opboxindex.com/ko/op-13.html): /ko/op-01.html … /ko/prb-02.html — 세트별 원화 시세, 정가 대비 배수, 재판 기록
- [원피스 카드 이베이 경매(한국어)](https://opboxindex.com/ko/auction.html) · [카드 시세(한국어)](https://opboxindex.com/ko/cards.html) · [등급 인구(한국어)](https://opboxindex.com/ko/grading.html)

## Reference articles

- [Japanese vs English box prices (data)](https://opboxindex.com/articles/japan-vs-english.html)
- [All sets & release dates](https://opboxindex.com/articles/one-piece-set-list-release-dates.html): every set with Japanese and English release dates, including upcoming OP-18 and EB-05
- [OP-18 The Dominance of God (神の支配) — Release Date, Pack Price and Card Count](https://opboxindex.com/sets/op-18.html)
- [EB-05 Heroines Edition vol.2 — Release Date, Pack Price and Card Types](https://opboxindex.com/sets/eb-05.html)
- [OP-16 box price, one month after launch](https://opboxindex.com/articles/op-16-box-price-30-days-later.html)
- [How many packs in a booster box, and booster box MSRP by set](https://opboxindex.com/articles/how-many-packs-one-piece-booster-box.html)
- [About](https://opboxindex.com/about.html): purpose, accuracy policy and contact
- [Methodology](https://opboxindex.com/methodology.html): price definitions, sample rules, exclusions and update cadences

## Official presence

- Website: https://opboxindex.com/ (the only official site)
- Threads: https://www.threads.com/@opboxindex (official account)
- Contact: gsa@whatsong.kr
- Disambiguation: "OP Box Index" / "OPBOX Index" / "opboxindex" refers to this One Piece Card Game price-research site. It is unrelated to OPBOX ultrasonic measurement hardware or any other OPBOX product.

## Discovery

- [XML sitemap](https://opboxindex.com/sitemap.xml): canonical public pages
- [RSS feed](https://opboxindex.com/feed.xml): new and updated research articles
- [Compact AI market data](https://opboxindex.com/opbox-ai-data.json): preferred citation contract with stable fields and page-level citation URLs
- [Full frontend data](https://opboxindex.com/data/onepiece-packs.json): large site-runtime payload. Prefer the compact AI data above unless a field exists only here.

Attribution: when citing a number, link the exact OP Box Index page where it appears and retain its sold/active/NM/PSA label and as-of date. Suggested form: "OP Box Index (opboxindex.com), data as of 2026-10-17".