Mastercard Expands Settlement to Eight Blockchains with Stablecoins

Mastercard announced plans to enable transaction settlements using regulated stablecoins across eight blockchains on June 4, 2026. This initiative will support payments beyond consumer usage and incorporates Circle's USDC, Paxos's PYUSD, and others while maintaining fiat options. Participating blockchains include Ethereum, Solana, and Polygon. Initial collaborators are ARQ, CBW Bank, Cross River, Lead Bank, and Nuvei, targeting launches in the US and Latin America. This development coincides with a stablecoin market valuation nearing $317 billion. Mastercard aims to ensure traditional card processes remain efficient, despite navigating regulatory and liquidity challenges, after the GENIUS Act's enactment in July 2025.