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What is GrailHawk?

The 60-second overview of how GrailHawk works.


GrailHawk is a real-time price tracker for trading cards. You choose the exact Pokémon or One Piece printing you want and the most you'll pay; it watches qualified eBay and Shopify listings and alerts you when a matching listing reaches your target.

You do the valuation once. GrailHawk does the watching forever — so you never refresh listings again or miss a deal while you sleep.

The core loop

  • +Search a card and compare its distinct printings.
  • +Open the exact card, then create a watch with a target price and optional grade.
  • +Get an email + in-app alert when a listing hits your price.
  • +Tap the buy link to go straight to the listing on eBay.
  • +Add what you own to Portfolio to track live value and P/L.