Mastercard Supercharges DeFi Access with Chainlink and Fiserv Integration

Mastercard is accelerating its foray into crypto by deepening alliances with Chainlink and Fiserv to improve on-chain token purchases and support stablecoin usage at scale, reports PaySpace Magazine.

A key innovation lies in powering the Swapper Finance platform, which allows users to acquire digital assets on DEXs like Uniswap with any of Mastercard’s 3.5B cards. At the heart of the system is XSwap, a Chainlink-native decentralized exchange that taps into Chainlink’s oracle standards for real-time data and interoperability.

This seamless bridge between fiat and crypto removes friction for users and aligns with Mastercard’s broader effort to normalize digital asset transactions. Backend integration with firms like zerohash and Shift4 ensures compliance, custody, conversion, and card processing are handled securely—all within a regulated, on-chain environment.

Additionally, Mastercard is embedding FIUSD—a programmable stablecoin issued by Fiserv—into its payment ecosystem. Through the Multi-Token Network and Fiserv’s Digital Asset Platform, businesses and consumers can pay or get paid in stablecoins across more than 150M locations. New card options linked to FIUSD will allow global spending with flexible settlement options across credit, debit, or digital asset balances via Mastercard One Credential. In essence, Mastercard is transforming itself into a next-gen crypto payments backbone.