Shift4 Payments (NYSE:FOUR) is using the full-stack API of Zero Hash, a crypto infrastructure firm, to build a fiat-to-crypto on-ramp for web3 merchants, Zero Hash said on Wednesday.

The crypto on-ramp, which includes customer identity verification, liquidity, custody and settlement, comes at a time when fragmentation of products and providers for web3 merchants has created approval-rate challenges and high fees.

Now, with "Zero Hash’s end-to-end turnkey crypto infrastructure enables Shift4 to power crypto merchants globally with best in class fees and authorization rates and a product that just works,” said Pietro Moran, director of Crypto of Shift4.

Meantime, Shift4 (FOUR) saw its stock slide 5.9% in late morning trading.