MetaMask USD (mUSD) is the new native stablecoin of MetaMask, aimed at directly integrating liquidity into your wallet. This milestone represents the first time a self-custody wallet creates its own stablecoin, designed for payments, DeFi, and transactions within the Web3 ecosystem.
The stablecoin is issued by Bridge, a Stripe company, and built on the decentralized infrastructure of M0, ensuring 1:1 backing with high-quality liquid assets. The initial launch will be on Ethereum and Linea, the L2 solution developed by Consensys.
MetaMask USD (mUSD) and its role in DeFi and digital payments
The launch of mUSD inaugurates a new wallet-native stablecoin model, designed to simplify the experience for MetaMask users. From day one, it will be available for swaps, transfers, and cross-chain bridges.
Furthermore, it is expected that by the end of 2025, it can be used on the MetaMask Card, allowing payments at millions of merchants that accept Mastercard.
In the DeFi ecosystem, mUSD will be integrated into key protocols, such as decentralized exchanges and lending platforms. This move aims to consolidate MetaMask as a comprehensive access point to Web3. One of the central points of mUSD is its real-time transparency and regulatory compliance.
Thanks to Bridge and M0, the stablecoin is fully backed and designed to be interoperable across multiple blockchains. Additionally, its launch coincides with the recent approval of the GENIUS Act in the U.S., which establishes a federal regulatory framework for payment stablecoins.
This context provides greater certainty to the ecosystem and reinforces MetaMask's vision of offering users a secure and liquid stablecoin, with practical utility both inside and outside the crypto environment.
"MetaMask USD will initially launch on Ethereum and Linea, the fully EVM-equivalent L2 developed by Consensys, where it aims to play a key role in the Linea DeFi ecosystem," says a passage from the official statement.
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Current state of the stablecoin market
The stablecoin market continues to consolidate as one of the main pillars of the crypto ecosystem. Its global capitalization reached $280 billion, with an annual growth of nearly 20% so far in 2025.
Dominance remains overwhelmingly in favor of the dollar. Almost 99% of stablecoins are pegged to the U.S. dollar, and only a small number use other currencies.
The main issuers include Tether (USDT), with over 60% market share, USDC, with regulated backing, and DAI in the DeFi space, in addition to new options like USDS or USDe that aim to diversify the landscape.
Top 5 stablecoins by market capitalization. Source: CoinGecko
These stablecoins are no longer just safe-haven instruments; by 2025, they are consolidating as efficient payment infrastructure. They have wide use in cross-border payments, settlement of institutional transactions, and as a bridge channel between traditional finance and DeFi.
Globally, the stablecoin market is projected to grow from current levels to $2 trillion by 2028, driven by both commercial adoption and regulatory incentives.
The MetaMask article reveals its native stablecoin mUSD: details were first seen on BeInCrypto Brazil.
