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x402 Web Probe – HTTP Check (Hub Europe, Germany)
x402
x402 Web Probe – HTTP Check (Hub Europe, Germany) is a paid API for AI agents from superstone.ccwu.cc:8443, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).
Checks website uptime, HTTP status, TLS certificate validity, and response latency from a European (Germany) vantage point, returning structured diagnostics.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call website uptime/latency/TLS checks and fetch-to-Markdown, measured from Hub Europe (Germany). USDC on Base via x402. No account or API key.
Output
Returns a JSON object with: whether the site is reachable (ok: boolean), HTTP status code, resolved IP, TLS details (issuer, days left, authorized), timing breakdown (dns_ms, ttfb_ms, total_ms), the final URL after redirects, the redirect chain, and the probing node/region identifier.
Example use cases
European uptime check for SaaS product
“Check whether https://myapp.io is currently up and responding from Germany — I want to know the HTTP status, TLS certificate status, and how long it takes to get a response.”
SSL certificate expiry monitoring
“Can you probe https://shop.mybusiness.com from the European node and tell me how many days are left on the TLS certificate and who issued it?”
Latency baseline from Germany
“I need a latency breakdown for https://api.acme.com from a German server — specifically DNS resolution time, time to first byte, and total response time.”
Technical details
Endpoint
GEThttps://superstone.ccwu.cc:8443/v1/check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call uptime or latency check from a European (Germany) geographic vantage point with no account or API key required. It is ideal for spot-checking availability, TLS health, or response speed from a European perspective. Prefer it over self-hosted monitoring or subscription services when you need on-demand, ad-hoc checks billed in USDC micro-payments via x402.
Side effects
- URL unreachable or times out — ok: false with no timing data
- Invalid or non-public URL (not http/https, or restricted port) — request rejected
- TLS certificate invalid or expired — authorized: false with days_left near 0 or negative
- Payment failure via x402 — HTTP 402 returned before probe executes
- Non-GET method requested — rejected by schema validation
- Port not 80 or 443 — URL rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ip": "93.184.215.14",
"ok": true,
"tls": {
"issuer": "DigiCert Inc",
"days_left": 60,
"authorized": true
},
"url": "https://example.com/",
"node": "vps13",
"region": "Hub Europe (Germany)",
"status": 200,
"timing": {
"dns_ms": 3.1,
"ttfb_ms": 95.2,
"total_ms": 97.8
},
"final_url": "https://example.com/",
"redirects": []
}
}Tags
x402
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