MetaMask launches mUSD stablecoin with Bridge to expand DeFi payments

MetaMask introduced mUSD, a dollar-pegged stablecoin issued with Bridge and M0, launching first on Ethereum and Consensys’s Linea network.

The GENIUS Act in the United States established a federal framework for stablecoins, providing regulatory clarity that strengthens institutional trust in digital dollars.

MetaMask plans to link mUSD to the MetaMask Card, enabling payments at Mastercard merchants and extending use beyond crypto trading into mainstream spending.

MetaMask has introduced a new dollar-pegged stablecoin named MetaMask USD, or mUSD, in collaboration with Bridge and infrastructure firm M0. The stablecoin is set to debut on Ethereum and Linea, Consensys’s proprietary network. According to the announcement, mUSD will later be integrated into the MetaMask Card to enable real-world payments.

The launch represents a significant development for MetaMask, which becomes the first major non-custodial wallet to embed a U.S. dollar-pegged stablecoin directly into its product ecosystem. The stablecoin is designed to streamline transactions within the wallet, including fiat conversions and cross-chain operations, while keeping liquidity within its networks, particularly Linea.

Strategic timing with new U.S. framework

The rollout aligns with new regulatory clarity in the United States following the passage of the GENIUS Act. The law establishes a federal framework for payment stablecoins, reducing regulatory uncertainty and creating consistent rules for issuers. Industry observers note that this legal certainty has strengthened institutional trust and opened the path for larger players such as MetaMask to expand their stablecoin offerings.

By integrating mUSD into its card service, MetaMask aims to extend usage beyond decentralized finance applications. Holders will be able to spend the stablecoin at Mastercard-supported merchants worldwide by the end of the year. This move underscores the growing interest in using stablecoins for everyday payments rather than limiting them to crypto trading or transfers.

Expanding market opportunities

Stablecoin adoption has reached record highs, with market capitalization currently at $271 billion. Analysts from Goldman Sachs recently projected that the sector has the potential to reach a multi-trillion-dollar market, primarily through global payments. MetaMask’s approach to embedding mUSD into both its DeFi network and consumer payment tools reflects its intention to capture a share of that market growth.

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