{
  "service": "DevX x402 Preflight",
  "version": "1.0.1",
  "by": "DevX (madebydevx.com)",
  "endpoint": "https://x402-preflight.nextill-pos.workers.dev/v1/preflight",
  "price_usdc": 0.003,
  "protocol": "x402 v2 exact, USDC on Base",
  "payTo": "0xB3cDDccEe6B150c8efFD55B961afc0Ecefe7f247",
  "facilitator": "https://facilitator.payai.network",
  "description": "x402 preflight: before your agent signs a payment, fetch a paywalled URL's 402 and lint it. Parses v1 bodies and v2 PAYMENT-REQUIRED headers, then checks each accepts[] option: known network, canonical USDC, EIP-712 domain (extra.name/version) that a signature will verify against, EIP-55 payTo, zero/contract payTo, amount sanity, timeout, testnet, resource-host mismatch. Returns ok/warn/block per option, findings and the recommended option.",
  "docs": "https://x402-preflight.nextill-pos.workers.dev/openapi.json",
  "terms": "https://x402-preflight.nextill-pos.workers.dev/terms",
  "free_sample": "https://x402-preflight.nextill-pos.workers.dev/v1/sample",
  "example": "https://x402-preflight.nextill-pos.workers.dev/v1/preflight?url=https%3A%2F%2Fx402.ottoai.services%2Fcrypto-news"
}