For creators
Cover the One Piece market? Get paid for being early.
Grand Line Ledger is the market intelligence platform with a public track record: 7,000+ products and 15,000+ daily prices across US, European, and Japanese markets, daily verdicts backtested on 2.5 years of real prices, and every call graded in public. Your audience gets a real edge. You get founding-partner terms nobody after you will be offered.
Step 1 · Today
Your tracked link goes live
You get a personal link like grandlineledger.com/?ref=yourchannel. Every signup it brings is credited to you permanently, starting now, while the whole platform is still free before the August 20 launch.
Step 2 · Founding window
Share it, we back you
Custom data pulls, charts, and market breakdowns for your videos on request. Test our calls on camera, grade us publicly, we built the site to be checked.
Step 3 · Launch
Founding terms lock in
When premium launches, founding partners get 30% recurring commission for 12 months on every referred subscriber, with your pre-launch referrals honored from day one. Real attribution, no caps.
Why partner with the Ledger
Your audience asks you every week what to buy. We are the only platform in this hobby that answers with receipts: 10,000+ backtested calls, buy calls that finished higher 66% to 86% of the time at 8 weeks depending on price band, and a public ledger of every live call that nobody, including us, can edit.
Coverage no one else has: every single and sealed product (not just boxes), real eBay sold listings, European prices, live Japanese dealer quotes, PSA, CGC, and BGS populations, scarcity scores, and a visual card scanner in beta.
Free for your audience until August 20. No card, no trial clock. Recommending us costs your viewers nothing today.
Become a founding partner
Email us with your channel link. We reply within a day with your tracked link and founding-partner confirmation in writing.
Apply: matt@grandlineledger.comFounding terms are limited to creators who join before launch on August 20.
Observations, not financial advice. Fan-made; not affiliated with Bandai, Toei, or Shueisha.