MetaMask, the world’s leading self-custodial crypto wallet, has launched its native USD-backed stablecoin, mUSD. This milestone marks the first time a self-custodial wallet has introduced its own stablecoin, setting a new standard for wallet-native digital assets.
MetaMask USD ($mUSD) is now live. 🦊
— MetaMask.eth 🦊 (@MetaMask) September 15, 2025
The best way in and out of crypto is here. pic.twitter.com/h6zSUao7Ka
A New Era of Wallet-Native Stablecoins
MetaMask USD (mUSD) integrates seamlessly into the MetaMask ecosystem, offering users enhanced functionality across decentralized applications and DeFi protocols. The stablecoin provides a direct fiat on-ramp with 1:1 USD backing, supported by Bridge, a Stripe company, and the M0 protocol for minting. Users can access low-cost fiat on-ramps, execute swaps, and bridge transactions natively within the MetaMask interface. The initial launch covers both Ethereum and Linea networks, positioning mUSD to play a vital role in the growing Linea DeFi ecosystem.
Strategic Features and Implementation
The launch introduces several key features that distinguish mUSD in the stablecoin market. MetaMask Card holders will soon gain the ability to spend mUSD at over 150 million merchants worldwide through Mastercard integration. The token will receive substantial liquidity incentives on Linea, with dedicated rewards for various trading pairs. Initial liquidity pools against USDT, USDC, ETH, and LINEA will receive significant reward allocations, demonstrating MetaMask’s commitment to establishing robust market presence.
Shaping the Future of Digital Payments
The introduction of mUSD represents more than just another stablecoin entry – it signals a shift toward more integrated crypto wallet solutions. With an initial supply of approximately $18 million, mUSD enters the $284.8 billion stablecoin market with a clear focus on utility and accessibility. The stablecoin’s launch aligns with recent regulatory developments, including the U.S. GENIUS Act, ensuring compliance while maintaining the decentralized principles valued by MetaMask’s user base. Follow Genfinity for continuous updates on mUSD’s adoption and its impact on the digital asset landscape.
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