FETCH402
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HTTP Latency Check API.

HTTP Latency Check API. Measure HTTP response latency for a URL from the Cloudflare Worker edge. Returns status code, latency, redirect, content type and edge location metadata. Useful for uptime checks, API diagnostics and website monitoring. Paid per call via x402.

Eligibility
unprobeable
Failures
0
Last quote
Last probe
Payment requirements / accepts[] 1 options
State Network Scheme Atomic amount Asset payTo / untrusted
active eip155:8453 exact 1000 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 0x0550779CFBc832657A8BB46BAC9f359A5ad038B8

All advertised payment options are stored. Base (`eip155:8453`) is the operational network for ranking and canaries; non-Base options remain visible for transparency.

Probe evidence 0 recent

No probe attempts recorded yet. Coverage runs prioritize never-probed endpoints.

Machine contract

Schemas.

InputJSON
{
  "body": {
    "url": "https://example.com"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}
OutputJSON
{
  "example": {
    "from": {
      "colo": "SOF",
      "country": "BG",
      "network": "cloudflare_worker"
    },
    "latency_ms": 123,
    "method": "HEAD",
    "ok": true,
    "redirect_location": null,
    "service": "http_latency",
    "status_code": 200,
    "timestamp": "2026-06-23T00:00:00.000Z",
    "url": "https://example.com"
  },
  "type": "json"
}