Build Trust Into Every Transaction

Integrate GTCR Into Your Platform

If your marketplace, platform, or app facilitates the sale of graded trading cards, the Global Trading Card Registry (GTCR) can add an independent trust layer directly into your transaction flow.

Through GTCR integration, platforms can automatically perform a Trust Check before a graded card transaction is completed and register eligible, verified purchases after the transaction.

Check Before the Transaction. Register After the Sale.

Before Purchase — Trust Check

Automatically check a graded card against the GTCR before a transaction is completed to identify whether it has been reported lost, stolen, or otherwise flagged within the registry.

After Purchase — Register

When an eligible graded card clears the Trust Check and the transaction is successfully completed, the card can be registered within GTCR, helping create a more complete and trusted record as cards move throughout the hobby.

One Integration. A Stronger Ecosystem.

GTCR integration can help marketplaces and apps:

Add an independent trust check to graded-card transactions
Help protect buyers and sellers
Identify reported lost or stolen cards before a sale is completed
Register eligible clean purchases automatically
Strengthen provenance and ownership records over time
Reduce friction by integrating trust directly into the transaction experience
Contribute to a safer, more transparent trading card ecosystem

Trust Should Happen Before the Transaction — Not After Something Goes Wrong.

Every Trust Check strengthens the network. Every registered card makes the ecosystem more useful. And every integrated platform helps create a safer secondary market for collectors.

Become a GTCR Integration Partner

Are you a marketplace, auction platform, card-selling app, dealer network, vault, or other technology provider facilitating graded-card transactions? Integrate GTCR into your transaction flow and help make trust part of every graded-card purchase.

Request GTCR API Access

GTCR is free and open to everyone — collectors never pay. API access for platforms starts at $99/month, with GTCR Industry Supportership starting at $500/month and enterprise integrations available.