Shift4, the leader in integrated payments and commerce technology, and Lydian, the global crypto and stablecoin payment platform, today announced a partnership to expand upon Shift4's "Pay with Crypto" solution, enabling Shift4's merchants to accept all digital assets, in addition to Tether (USDT), with settlement in local currency.

Shift4 and Lydian’s “Pay with Crypto” product allows customers to pay with any major wallet, just as they would with a credit card. Merchants receive funds directly in their local currency without ever holding or touching digital assets. The Lydian partnership includes  Tether, the world’s top stablecoin, to the list of crypto payment options supported on the platform, with no new workflows or crypto expertise needed from merchants.

The partnership comes as digital currencies reach new levels of adoption, with more than 600 million crypto users worldwide. Last year, stablecoin transaction volumes surpassed Visa settlement volumes, highlighting their growing popularity among consumers. Regulatory clarity is also improving, with frameworks such as the GENIUS Act in the US and Europe’s MiCA providing clear guidance for integrating stablecoins into payment systems. Lydian’s integration positions Shift4 at the forefront of this movement, enabling merchants to meet growing demand for alternative payment options and tap directly into the $4 trillion digital asset economy

Merchants have long struggled to accept digital currencies due to complex infrastructure, high costs, and exposure to volatility. By bypassing traditional card networks and legacy settlement infrastructure, Lydian enables faster processes, lower transaction costs, and near-instant settlement in local fiat currency, eliminating volatility exposure and significantly reducing chargeback risk for merchants. Meanwhile, customers enjoy a simple and intuitive checkout experience.

“We built our Pay with Crypto solution because it is becoming a mainstream payment method. This seamless, secure way to accept Tether expands on our successful program without added complexity or risk. We’re giving merchants the tools to capture a fast-growing base of stablecoin paying customers,” said Taylor Lauber, CEO, Shift4.

The announcement builds on Shift4's growing crypto payments momentum, with “Pay with Crypto” already live across thousands of merchants in the United States.

“Lydian was designed to bridge the gap between traditional money and digital assets by making crypto function exactly like traditional payments at checkout. Our mission is to bring digital assets, like USDT, into everyday commerce, allowing merchants to offer new ways to pay without introducing new risks or operational complexity,” said Carl Grimstad, CEO of Lydian.