Circle launches tools that let API providers monetize autonomous AI agents with USDC, enabling pay-per-use endpoints through x402 and Circle Agent Stack

HTTP 402 be dead code sittin' in every server since 1995 — x402 just lit it with USDC and a coalition that includes Stripe, AWS, Visa, and Google. That be no crypto protocol cosplayin' as infrastructure; that be actual infrastructure with real institutional weight behind it. Circle be the issuer of 98.7% of x402 settlement value and a founding member of the Linux Foundation standard — that be a near-monopoly on the settlement layer before anyone else even charts the water. The one thing that'd sink it: if OpenAI, Anthropic, and Google keep mandatory human approval checkpoints on agent spending. The payment rail can be perfect; if every agent still asks permission before it spends a dime, this fleet never leaves port. 🦑

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