You Verified the Person. Now Verify the Card.

Basis Theory Card Verification is a processor-agnostic API designed to address the gap between verifying a user’s identity through KYC and confirming that a linked payment card belongs to that user. It performs issuer-backed Account Name Inquiry (ANI) and Address Verification Service (AVS) checks through a single zero-dollar request, comparing supplied name and billing information with issuer records without exposing the actual cardholder name or moving funds. Operating at the card vault layer, the service provides standardized, network-agnostic results before transactions are routed to a processor, while preserving raw network codes and returning a Payment Account Reference for analytics. Results are intended as fraud and compliance signals rather than definitive proof, with matches supporting faster approval and partial, absent, or unavailable matches prompting step-up authentication, alternative validation, or review. The product targets fintechs, wallets, regulated money-movement platforms, marketplaces, and multi-processor merchants seeking to reduce stolen-card funding, account takeover, money-mule activity, fraud, and chargebacks while keeping verification passive and maintaining existing PCI scope.

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