USDC Dominates AI Agent Payments in Crypto Transactions
AI agents are increasingly using cryptocurrency to settle transactions for services like data feeds and API calls. According to recent reports, USDC has emerged as the dominant stablecoin used by these automated systems, accounting for over 98% of agent-driven transaction volume. Circle's CEO Jeremy Allaire noted that this figure reached 99.3% in Q2 2026 using Coinbase’s x402 standard. The preference for USDC stems from its stability and reliability for microtransactions where price volatility could distort value over time. While XRP and Solana are used as settlement chains, they do not compete directly with USDC as the payment asset itself. Chainalysis warned that some of the transaction growth in late 2025 was driven by meme coin activity rather than genuine agent-based payments. Circle’s Agent Stack has enabled developers to create policy-controlled wallets and nanopayment systems for AI agents, supporting over 900 paid services as of May 2026. The stablecoin's transaction volume increased by 151% year-over-year, with a total circulation reaching $73.3 billion.
Tickers: $COIN $SOL $USDC $XRP
Topics: AI agents crypto transactions Solana USDC dominance XRP