MetaMask Launches mUSD Stablecoin with Linea Integration and Global Payment Features

ConsenSys's MetaMask launched mUSD, a new stablecoin backed by short-term U.S. Treasury bills, marking the crypto wallet provider's entry into integrated payment solutions. The token launched on September 15, through a partnership with Bridge, a stablecoin infrastructure company, and utilizes M0's institutional-grade protocol while offering comprehensive ecosystem integration. 

MetaMask, owned by Brooklyn-based ConsenSys, serves over 30 million monthly active users as one of the most popular Ethereum wallets. The stablecoin launches with strong liquidity support on Linea, ConsenSys's layer-2 blockchain network that provides faster and cheaper transactions than Ethereum mainnet. Linea, which launched in 2023, has processed over 10 million transactions and hosts more than $200 million in total value locked across various DeFi protocols. The native Linea integration positions mUSD as the primary stablecoin for the network's growing ecosystem.

Bridge, a San Francisco-based fintech company founded in 2022, provides the underlying infrastructure for mUSD. The company specializes in programmable money solutions and has raised $58 million in funding from investors including Sequoia Capital and Ribbit Capital. Bridge's platform enables the real-time settlement and compliance features that support mUSD's multi-chain deployment.

The stablecoin operates on M0's protocol, which focuses on institutional-grade digital dollar infrastructure. M0, backed by investors including Pantera Capital and Standard Crypto, provides the technical framework that allows mUSD to maintain its Treasury bill backing while enabling smart contract functionality across multiple blockchain networks.

MetaMask integrated mUSD across its payment infrastructure, including the MetaMask Card, which enables spending at over 150 million merchants worldwide. The card, launched in partnership with Mastercard in 2024, allows users to convert crypto holdings to fiat for traditional purchases. The mUSD integration provides cardholders with a yield-bearing stablecoin option for everyday transactions.

The company also embedded mUSD into MetaMask's swap and bridge services, offering users reduced fees when trading or transferring the stablecoin. MetaMask Swap, which aggregates liquidity from multiple decentralized exchanges, will prioritize mUSD pairs to provide optimal pricing. The integration extends to MetaMask's fiat onramp services, where mUSD purchases will feature the lowest-cost conversion rates.

Unlike traditional stablecoins such as USDC or Tether that primarily hold cash equivalents, mUSD generates yield through its Treasury bill reserves. The token maintains full collateralization with short-term U.S. government securities, providing holders with exposure to risk-free rates while maintaining liquidity for payments and DeFi applications.

The stablecoin contract deployed at address 0xaca92e438df0b2401ff60da7e4337b687a2435da, with initial support on Ethereum and Linea networks. Additional blockchain integrations are planned as the ecosystem expands. 

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