You can now top up your card using USDC on Solana, in addition to Ethereum and Polygon — choose from 3 networks that suit your needs. Once the funds are deposited, spend USDC directly at any merchant that accepts Visa worldwide.

For more information on how to top up, refer to https://docs.mpcvault.com/docs/product/how-to-use-an-mpcvault-card/#depositing-funds .