Self-custodial Mastercard from Solflare that spends USDC on Solana with no annual fee, paused since 28 July 2026 while it changes issuer; requires KYC.
Pros
+Free self-custodial card that spends USDC on Solana
+No annual fee
+Merchant cashback in USDC at Nike, Best Buy and 4,000+ stores
Cons
-The card was paused on 28 July 2026 after its issuer wound down