Chainalysis reported that the refill rate for x402 wallets (active on multiple days) first funded in Q2 2026 surged to 89.3%, up from 70.6% for Q3 2025. This indicates growing adoption of automated cryptocurrency transactions by AI agents for machine-to-machine payments. The firm noted that two-thirds of newly funded x402 wallets made payments within an hour in Q3, a significant jump from 4% a year earlier, with the median time to first payment collapsing to 18 minutes from 73 days in late 2025. Coinbase's x402 standard on the Base blockchain has processed over 138 million transactions, with 87% of payments ranging between $0.0001 and $0.10. US companies lead in AI model inference payments, while Chinese-linked wallets dominate security and code-analysis services.