{
  "@context": "https://schema.org",
  "@type": "Dataset",
  "name": "x402 Micro-payments",
  "dateModified": "2026-06-02",
  "spec": "HTTP 402 Payment Required (Coinbase x402 v0.3)",
  "flow": [
    "1. Agent calls metered endpoint → 402 with WWW-Authenticate: X402 chain=base, asset=USDC, amount=0.01, address=0x...",
    "2. Agent submits payment payload via X-Payment header",
    "3. Server verifies on-chain, returns 200 with X-Payment-Receipt (JWS)"
  ],
  "supportedChains": [
    "Base",
    "Ethereum",
    "Polygon"
  ],
  "supportedAssets": [
    "USDC",
    "USDT"
  ],
  "facilitator": "https://xn--82czbx2bczd4fl8a.online/agent-billing/x402/facilitator",
  "receiptFormat": "SD-JWT-VC",
  "minAmountUSD": 0.001
}