Klarna (NYSE: KLAR) is expanding its partnership with Fiserv (NASDAQ: FISV) by integrating with Commerce Hub, Fiserv's enterprise commerce platform, making Klarna available to enterprise merchants for the first time through that platform.

The expansion follows Klarna's launch at 100,000 U.S. in-store merchant locations through Clover, Fiserv's point-of-sale platform for small businesses. Through Commerce Hub, merchants in the U.S., Canada, the U.K. and select European markets will be able to offer Klarna both in-store and online.

Klarna's payment options include paying in full immediately, paying in 30 days, or splitting purchases into interest-free installments.

"We're rapidly expanding Klarna's footprint in physical retail, now live in 100,000 physical locations across the U.S. through Clover," said David Sykes, Chief Commercial Officer at Klarna. "Deepening our integration with Fiserv's Commerce Hub allows us to support merchants across channels."

Sanjay Saraf, Chief Product Officer of Merchant Solutions at Fiserv, said the expanded partnership is aimed at helping businesses offer more payment choice and connect in-store and digital experiences.