ThorWallet introduces self-custody card for Mastercard payments via DeFi conversions

ThorWallet, a non-custodial cryptocurrency wallet, has launched a payment card that enables users to spend digital assets at millions of merchants worldwide through Mastercard’s payment network. The card is designed to preserve the core principle of self-custody, converting crypto into $USDC only at the point of sale.

How the ThorWallet card works

According to a report by Cointelegraph, the ThorWallet card integrates decentralized finance (DeFi) protocols directly into the wallet interface. When a user makes a purchase, the wallet automatically converts selected cryptocurrencies—such as Bitcoin ($BTC), Ethereum ($ETH), or Solana ($SOL)—into USD Coin ($USDC) via these integrated protocols. This conversion happens just moments before the transaction is processed, ensuring that the user’s assets remain under their control until the very last step.

The card is not a custodial solution; rather, it acts as a bridge between the user’s self-managed assets and the traditional payment infrastructure. This approach addresses a common pain point for crypto users who wish to spend their holdings without transferring funds to a centralized exchange or third-party custodian.

Why this matters for crypto adoption