#MastercardStablecoinCards Mastercard has partnered with MoonPay to launch stablecoin-powered payment cards, enabling users to spend stablecoins directly at over 150 million merchants worldwide. These cards automatically convert stablecoins into fiat currency during transactions, simplifying the payment process.

*Key Features:*

- *Global Acceptance*: The cards can be used at approximately 150 million merchants worldwide where Mastercard is accepted.

- *Stablecoin Conversion*: Stablecoins are instantly converted into fiat currency, ensuring seamless integration with existing financial systems.

- *Partnership Benefits*: The collaboration combines Mastercard's trusted global payments network with MoonPay's advanced infrastructure, connecting the crypto economy and mainstream finance ecosystems.¹ ²

*How it Works:*

- *Iron Infrastructure*: MoonPay's acquisition of Iron in March 2025 provides the technical foundation for these stablecoin cards, facilitating real-time crypto-to-fiat conversion.

- *Transaction Process*: Users can pay with stablecoins, which are automatically converted to fiat currency at the point of sale, eliminating volatility concerns for merchants.

*Impact and Future Developments:*

- *Growing Stablecoin Adoption*: Stablecoins have processed $35 trillion in transactions over the past year, more than double Visa's annual payment volume, indicating growing adoption and potential for further expansion.

- *Regulatory Clarity*: Recent guidance from the US SEC suggests that certain fiat-backed stablecoins are not considered securities, providing some clarity, although regulatory uncertainty still surrounds other types of stablecoins.³