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Qiang Zhao

Cofounder and storyteller

  • Coin Value Checker Coin Value Checker
    30 June 2025 at 14:32

    As a coin enthusiast obsessed with flea markets and the mysterious treasures hiding in drawers, I built Coin Value Checker to help fellow collectors:

    • Instant ID: Upload front and back photos—our AI instantly identifies country, year, mint mark, and composition.

    • Live Market Value: Aggregates the past year of realized sales from eBay, Chinese marketplaces, and auction houses to provide a reliable price range plus liquidity notes.

    • Vintage Focus: Tuned primarily on circulation and commemorative coins from 1850–2000, with special attention to error and rare varieties.

    In my spare time, I turned my numismatic “OCD” into this tool, aiming to free you from endlessly flipping through catalogs and chasing scattered price info.

    Coin Value Checker