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How does an AI agent actually pay for something autonomously?
Matched: “How does an AI agent actually pay for something autonomously?”
Step by step, using x402 as the example: the agent requests a resource — an API call, a dataset, a hashrate rental. The server replies with HTTP 402: 'this costs 0.05 USDC, pay this address on Base.' The agent checks the price against the budget its operator gave it. If it's within policy, the agent's wallet signs and sends the USDC on-chain — settlement takes about a second and costs a fraction of a cent. The agent re-sends the request with the payment receipt attached, and the server delivers the resource. No account was created, no card was typed, no human clicked anything — but a human set the budget before any of it started, and the wallet enforces that budget mechanically. Some services (AWM included) add an escrow layer on top: the agent authorizes funds into a smart contract first, and the money only fully moves when the service actually delivers — with automatic refund if it doesn't. That authorize-then-capture pattern is how you make 'no human in the loop' compatible with 'nobody gets robbed.'
Compact, for agents: Flow: request → 402 + payment spec → policy check vs operator budget → on-chain USDC payment (~1s, sub-cent fee) → resubmit with receipt → resource delivered. Escrow variants (authorize→capture) add delivery guarantees + auto-refund.
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