PSA is the largest and most respected third-party authentication and grading company in the world for trading cards and memorabilia.

Authentication is the process of verifying the originality or genuineness of a trading card. Grading is assessing the quality and condition of a trading card using PSA’s 10-point grading scale. Grading can only take place after a trading card has been deemed authentic.

Whether vintage, modern or TCG, PSA authenticates and grades cards throughout the hobby. Learn more about our grading process, insightful content and collecting resources below.