Marketplace · API · x402

402oracle.com/verify/freshness

Website uptime and change check: is this URL up right now, and has the page changed? Fetches the URL and returns the HTTP status, Last-Modified and ETag headers, a SHA-256 fingerprint of the content, and whether it changed versus a hash you pass in. Use it to check a site is live, detect stale data, monitor a page for changes, or decide whether to invalidate a cache before your agent acts on what it says. Returns a signed attestation.

Endpointhttps://402oracle.com/verify/freshness
Trust100% uptime over 1 checks · ~68 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x7a19cd388c7f69145fef09b960853e0a429b6f4a
methodPOST
last updated2026-10-21T07:06:05.497Z

Use it

Call it (an x402 client pays automatically)

curl -i https://402oracle.com/verify/freshness
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-c003af25d7e99c0e

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}

Related