{
  "page": "https://x402-catalog-history.ai-business-surface.workers.dev/x402-check",
  "title": "x402 check before paying — check an x402 endpoint before you pay",
  "h1": "x402 check before paying",
  "description": "x402 check before paying: one unpaid GET shows whether an x402 endpoint is alive, what it charges, where it pays and what changed. A free preview and a measured example come first; the full one-call check is /check.",
  "search_query": "x402 check before paying",
  "what_it_checks": [
    "alive or not, with the reason when it is not",
    "the 402 it serves right now: amount, asset, network, payTo, maxTimeoutSeconds",
    "what changed since the previous observation"
  ],
  "links": {
    "free_preview": "https://x402-catalog-history.ai-business-surface.workers.dev/check?url=<URL>&preview=1",
    "paid_check": "https://x402-catalog-history.ai-business-surface.workers.dev/check?url=<URL>",
    "measured_example_en": "https://x402-catalog-history.ai-business-surface.workers.dev/en/check-before-paying",
    "measured_example_ja": "https://x402-catalog-history.ai-business-surface.workers.dev/ja/check-before-paying",
    "delivery_record": "https://x402-catalog-history.ai-business-surface.workers.dev/status",
    "output_shape": "https://x402-catalog-history.ai-business-surface.workers.dev/contract/sample?url=<URL>"
  },
  "price_paid_check_usdc": 0.05
}