GrailMine

What it does

• Two ways to buy: search single-card listings with front and back photos and buy instantly, or browse a seller's Showroom, where one photo holds a whole collection.
• Live inspection: a one-on-one video call where the buyer calls out corners, edges, surface and foil. The session is recorded and attached to the order.
• Objective trust scores built from completed sales, deliveries, disputes and cancellations.
• Middleman trades: both cards ship to GrailMine, are checked against their listings, then ship on.
• Branded storefronts and Open Shops, so buyers can find sellers who are live right now.

How it's built

Payments, payouts and tax reporting run through Stripe; live video runs on LiveKit with recordings kept as evidence for disputes. The catalog covers every major trading card game.