Trading Card Price Index – JK Index
Live trading card pricing, market data, and collector insight — built for serious collectors.
Explore supported TCGs, search for any card, and stay current with real market activity as the Index expands.
🚀 Actively shipping — 28 updates in last 7 days
AI Grading Readiness & Risk
Visual analysis of grading risk from front and back card images.
Image-based · No grades or predictions
🎴Trading Card Games
Pokémon
LiveLive Pokémon TCG pricing, sales history, and population data across vintage and modern sets. Built for serious collectors tracking real market activity.
Riftbound
Early AccessBrowse Riftbound card sets and individual cards in early access. Market data coverage is expanding as sales ingestion rolls out.
One Piece
Early AccessExplore One Piece TCG sets and individual cards in early access. Market data coverage is expanding as sales ingestion rolls out.
📊What is JK Index?
JK Index is a trading card market data platform built for collectors. We track pricing and sales activity for cards and sealed products across major marketplaces — starting with Pokémon TCG and expanding to new games like Riftbound and One Piece.
Data coverage varies by TCG as new ecosystems are onboarded.
Currently supported: Pokémon TCG • Riftbound TCG (Early Access) • One Piece TCG (Early Access)
👑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.