Fiserv CardPointe & Google Pay · 2026
VerifiNow Payments
Production payment gateway built on Fiserv: incorporating client-side Google Pay configuration, CardSecure tokenization, and CardPointe gateway authorization, validated in sandbox with PAN-only and cryptogram 3DS flows.
Fiserv CardPointe Gateway
Direct integration with CardPointe authorization, capture, void, and refund lifecycle APIs with structured status mapping.
CardSecure Tokenization
Secures customer card data using iframe tokenization, reducing PCI scope to the absolute minimum.
Google Pay & 3DS Flows
Client-side Google Pay integration supporting PAN-only and encrypted cryptogram 3DS payment verification.
Technical Implementation
Client-side Google Pay integration configured with tokenized merchant parameters and 3DS challenge handling.
CardSecure iframe tokenization preventing raw cardholder PAN exposure on frontend or intermediate servers.
CardPointe gateway authorization endpoints processing real-time card authentications with sub-second turnaround.
Validated against Fiserv sandbox environments across both standard PAN-only cards and cryptogram-based 3DS transactions.
Structured error handling and rollback workflows for edge cases including network timeouts and card declines.
Seamless integration into VerifiNow multi-tenant enterprise dashboards for centralized transaction auditing.