What Circle builds for agent payments
Almost every x402 demo in this directory settles in USDC. That is not accidental: agents need a stable unit of account, sub-cent transfers, and regulated rails. Circle’s USDC on Base, Solana and other chains is the default answer.
Circle also invests in “agent stack” narratives — programmable wallets, compliance-friendly stablecoin flows — so developers do not reinvent treasury for every agent.