x402 — A payment protocol built on HTTP's long-unused 402 status code, letting a server charge per request so software agents can pay without an account.
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
Why it matters
An AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → can provision a real browser session by paying per use in USDC over x402A payment protocol built on HTTP's long-unused 402 status code, letting a server charge per request so software agents can pay without an account.Full definition →, with no API key or account setup, removing the human credential step from otherwise autonomous web workflows.
