x402org

x402 — the HTTP 402 payment protocol by Coinbase. Native to the web, chain-agnostic, built for AI agents & micropayments. github.com/coinbase/x402 V1 Protocol Sequencing

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1 line of code to accept digital dollars: app.use(paymentMiddleware("0xYourAddress", { "/your-endpoint": "$0.01" })); ⚙️ Key ideas: • Open standard, no single gatekeeper • Native to HTTP — works inside your existing requests • Chain & token agnostic • Trust-minimizing

x402 — A payments protocol for the internet. Built on HTTP. Credit cards weren’t made for the internet — high fees, slow settlement, minimums too high. x402 fixes that with an open, chain-agnostic, trust-minimized payment layer.

x402 turns “payment required” into actual code. One line to charge, one line to verify. No wallets, no redirects — just HTTP.