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SiteCheck API Liveness & Latency Benchmark
x402
SiteCheck API Liveness & Latency Benchmark is a paid API for AI agents from api.fadeandco.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Checks whether a public HTTPS endpoint is up by issuing three GET requests and returning each HTTP status, response-header latency, median time, worst time, and an UP/DEGRADED/DOWN health level.
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call agent intelligence, token risk, developer and AI data tools for AI agents, from public chains and public sources. Payment: x402, USDC on Base, Solana, Arc, Polygon, Arbitrum, Monad, World Chain, Optimism, Avalanche, Celo or Stellar, or RLUSD/XRP on the XRP Ledger. No signup, no API key; a failed call is not charged.
Output
A JSON object containing: the probed URL, an UP/DEGRADED/DOWN level, an array of individual sample objects each with HTTP status code and latency in ms, the medianMs, worstMs, a checkedAt ISO timestamp, the count of successful samples, and a note clarifying it is a single-vantage-point measurement only.
Example use cases
Pre-deployment dependency check
“Before I deploy my new service, can you verify that https://payments.partner.io/v2/status is live and responding quickly — give me the median and worst response times and its health level?”
Incident triage for a failing integration
“Our integration with https://api.thirdparty.com/webhook/receiver seems flaky — can you probe it three times and tell me if it's UP, DEGRADED, or DOWN, and what the response times look like?”
Routine uptime spot-check in a workflow
“Check whether https://data.mybackend.io/api/ping is currently reachable and responding — I want the HTTP status codes from each attempt, the median latency, and the overall status level.”
Technical details
Endpoint
GEThttps://api.fadeandco.workers.dev/api/agent-intel/api-sla-liveness-benchmark?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, single-location liveness and latency snapshot of a public HTTPS endpoint without setting up a full monitoring service. It is ideal for pre-flight checks before calling a dependency, ad-hoc incident triage, or automated workflow gates that need a UP/DEGRADED/DOWN classification with raw latency data. Prefer alternatives if you need multi-region availability data, TLS handshake timing, or sustained periodic monitoring.
Side effects
- Target URL is unreachable or returns non-2xx — reflected in DOWN level and status codes in samples
- Invalid or non-HTTPS URL provided — likely 4xx or error response from the endpoint itself
- Target server blocks automated requests — may falsely appear DOWN
- All three requests time out — worst-case latency captured but level will be DOWN
- Single-vantage-point limitation — does not reflect regional outages or CDN edge failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"url": "https://httpbin.org/status/200",
"note": "One vantage point, three requests. Not a multi-region SLA measurement.",
"level": "UP",
"source": "https://httpbin.org/status/200",
"samples": [
{
"ms": 134,
"status": 200
},
{
"ms": 540,
"status": 200
}
],
"worstMs": 540,
"medianMs": 134,
"checkedAt": "2026-10-23T09:35:21.936Z",
"successfulSamples": 3
}
}Tags
x402
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