Confirm a graded card's authenticity and grade by searching its MAS certification number.
Enter the certification number from your MAS graded slab to confirm its grade and authenticity. Our database provides real-time verification along with a full population report — so buyers and sellers can trust every card.
Every card sealed in a secure, barcoded MAS holder.
Instant lookup against the live MAS grading database.
See exactly how rare your card's grade truly is.