Mastercard said it was expanding its relationship with Fiserv to promote the financial tech company's planned stablecoin, FIUSD.

Mastercard is bringing Fiserv’s brand-new stablecoin to its global payments network, as cryptocurrency adoption picks up steam across traditional finance. The companies said Tuesday they would issue stablecoin-linked cards for shared customers and enable merchants to settle with Mastercard using Fiserv’s new stablecoin FIUSD,

The financial technology seller plans its own coin and interoperability with PayPal's PYUSD, potentially reaching millions of consumers and merchants and thousands of banks.