{"query":"x402 protocol","results":[{"title":"x402: The Native Payment Protocol for HTTP","url":"https://x402.org","snippet":"The x402 protocol enables pay-per-request APIs using USDC on Base. Any HTTP endpoint can become a paid service with a single decorator.","score":0.9876},{"title":"Coinbase x402 Protocol — GitHub","url":"https://github.com/coinbase/x402","snippet":"Open-source implementation of the x402 HTTP payment protocol. Clients pay with USDC, servers verify via facilitator. Zero integration friction for AI agents.","score":0.9543},{"title":"x402 Payment Flow — Technical Architecture","url":"https://docs.cdp.coinbase.com/x402","snippet":"Step-by-step walkthrough of x402 payment verification: 402 response, X-PAYMENT header construction, facilitator verify/settle cycle.","score":0.9102}]}