Alpha Release: JK Index is in active development. Data coverage is expanding and you may see gaps or inconsistencies as we iterate. Feedback is welcome.

TCG Price Index – Pokémon, One Piece & Riftbound

Sold listings, market price, and graded price history — collector-first analytics.

Search any card, see market price and sold listings, and stay current as the Index expands.

🚀 Actively shipping — 34 updates in last 7 days

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AI Grading Readiness & Risk

Visual analysis of grading risk from front and back card images.

Image-based · No grades or predictions

Temporarily unavailable while we upgrade this feature. Coming back soon.

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📊What is JK Index?

JK Index is a TCG price index built for collectors. We track sold listings, market price, and graded price history for Pokémon TCG, One Piece TCG, and Riftbound TCG across major marketplaces.

Data coverage varies by TCG as new ecosystems are onboarded.

Currently supported: Pokémon TCG • Riftbound TCG • One Piece TCG

👑The Kingdom's Quest

The Kingdom began with a mission: collect every 1st Edition Jigglypuff and make it the most iconic non-holo in Jungle. What started as one collector's passion became a community — and the foundation for JK Index.

🎀100% of creator fees support the collection mission — and help fund continued JK Index development.