MetaMask's Wallet-as-Bank Gambit: How mUSD and a Mastercard Are Making Crypto Exchanges Obsolete
What if the wallet you use to store crypto could also be the bank you spend from? MetaMask just made that real. With 30 million monthly active users, the world's dominant self-custodial wallet has quietly assembled a full banking stack — its own stablecoin, a Mastercard payment card accepted at 150 million merchants, and DeFi yield that keeps earning until the instant you tap to pay. No off-ramps. No custodial accounts. No exchanges needed.
The implications are enormous. MetaMask's "wallet-as-bank" thesis doesn't just challenge crypto exchanges — it threatens to bypass traditional banking infrastructure entirely.