Circle's second-quarter 2026 earnings call made clear that the company sees autonomous software agents, not crypto speculation, as the next long-term demand driver for USDC. The numbers it reported on August 5 back up the narrative: USDC on-chain transaction volume hit $14.8 trillion during the quarter, up 151% year over year, while circulation rose 19% to $73.3 billion. Both figures grew even as the broader digital asset market fell roughly 40%.
Highlights#
Payments, not trading, is the new pitch. CEO Jeremy Allaire told analysts that institutions including BlackRock, BNY and Standard Chartered are expanding their USDC use, and that the company received its federal trust bank charter during the quarter. The Circle Payments Network reached an annualized $14.7 billion in transaction volume in the final 30 days of the quarter, up 76% sequentially, with 175 financial institutions enrolled.
Agent Stack is already live. Circle said its Agent Stack now supports more than 900 paid services. USDC accounts for 99.3% of payment volume settled through the x402 agent-payment protocol, suggesting the dominant stablecoin is becoming the default settlement asset for machine-to-machine transactions.
The revenue model is still mostly reserves. Reserve income was $668 million, roughly 95% of Circle's $701 million in total revenue and reserve income. Other revenue, which includes subscriptions and services, rose 41% but remained comparatively small at $34 million. Circle more than doubled its 2026 "other revenue" outlook to $310 million to $330 million, though part of that reflects a planned ARC token presale.
Agents may soon earn, not just spend. Management said Circle plans to add capabilities that let autonomous agents receive funds as well as pay them, turning USDC into a programmable income layer for agent-run services.
Why it matters#
For agent-to-agent commerce, the story is less about Circle's stock and more about validation: the largest regulated stablecoin issuer is explicitly building around autonomous agents settling in USDC, which makes programmable escrow and reputation rails like A2AWire's a logical next layer of trust.