Owning MetaMask USD (mUSD): Uses, Storage and Risks

MetaMask USD (mUSD) is a dollar-pegged stablecoin for use in the MetaMask ecosystem. It is intended to make it easier to move between crypto and fiat, transfer value on supported networks, and spend through MetaMask products, including the MetaMask Card. Its target is one mUSD for one US dollar, but that target is not a promise that you can always sell or redeem each token for a dollar.

Before holding mUSD, check what you need it for. If you plan to spend it, confirm that the product and merchant you intend to use accept it. If you want to convert it back to dollars, check the available route, fees, limits and redemption terms first. MetaMask does not publish direct redemption terms in the information available for this guide, so don't assume that holding mUSD gives you a direct claim on dollars.

mUSD is issued on Ethereum, Monad and Linea; it is not described as the native token of any of these networks. That means you need mUSD on the same network as the app or service where you plan to use it. A transfer on the wrong network may not arrive where you expect, and moving tokens between networks may require a bridge or exchange with its own costs and risks.

MetaMask is the wallet ecosystem mUSD is designed for, but check the current wallet interface and network before sending or receiving. Confirm the token identity and network using a trusted source, rather than relying on a familiar name or symbol: other tokens can use “MUSD.” Send a small test amount first if you are unsure. Keep enough of the network’s gas token to pay transaction fees; mUSD itself may not cover them. Fees vary with network conditions and the service you use.

The reported circulating and total supply is about 36.1 million mUSD, with no maximum supply reported, as of 2026-11-08. The quoted price was about $0.999 per token on that date. These are snapshots, not guarantees: supply can change, and a market price close to one dollar does not prove that every holder can redeem at par.

A stablecoin’s peg can weaken if buyers and sellers lose confidence, trading liquidity falls, or an issuer or service cannot meet demand. MetaMask does not publish reserve composition or independent audit details in the information available for this guide. Treat those as important unknowns if you are deciding how much value to keep in mUSD. Check the current price and the depth of the market you would use to exit; a displayed quote may not be the price available for a large sale.

Store mUSD in a wallet that supports its specific network, and protect the wallet’s recovery phrase and private keys. Anyone who gets those credentials may be able to take your tokens; MetaMask support cannot reverse an on-chain transfer. Never share a recovery phrase with a person or website claiming it is needed to verify, restore or unlock your mUSD.

Your main risks include the token losing its dollar peg, limited liquidity, issuer or redemption problems, smart-contract bugs, and mistakes when choosing a network or token contract. Bridges and third-party exchanges add separate counterparty and technical risks. Before sending a meaningful amount, verify the receiving address, network and token, and check the current redemption and service terms. Avoid treating mUSD as risk-free cash: a wallet balance is not the same as a bank deposit, and the token’s value can fall.