MetaMask Launches Native Stablecoin mUSD with Mastercard Integration

MetaMask has introduced its own stablecoin, MetaMask USD (mUSD), becoming the first self-custodial wallet to issue a native dollar-backed asset.

The token is issued by Bridge, a Stripe-owned stablecoin platform, and will launch on Ethereum and Consensys’ Linea network. Unlike traditional stablecoins, mUSD is embedded directly within MetaMask, allowing users to hold, transfer, and bridge dollar value without leaving the app.

Beyond DeFi integration, MetaMask plans to bring stablecoin utility to everyday spending with a Mastercard-linked MetaMask Card rolling out later this year. This will allow users to spend mUSD globally at merchants that accept Mastercard.

The rollout follows the recent passage of the US GENIUS Act, which established federal guidelines for payment stablecoins. With compliance frameworks now clearer, MetaMask aims to expand mUSD adoption across DeFi protocols, payment systems, and the Linea ecosystem.