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settle-check Trust Probe API
x402
settle-check Trust Probe API is a paid API for AI agents from settle-check.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Live-probes an x402 endpoint and returns a trust verdict with settlement evidence and a scored tier indicating whether the endpoint is actively settling payments.
Price / call$0.001
Success—
StatusUnknown
How this service works
Trust layer for x402 endpoints: live probe, settlement evidence, verdict tiers. USDC on Base, Mogami-settled.
Output
Returns a JSON object containing a numeric trust score (e.g. 0–100) and a verdict string (e.g. 'live_settling') indicating whether the probed x402 endpoint is actively live and processing USDC settlements on Base via Mogami.
Example use cases
Pre-flight check before paying
“Before I pay to call this x402 endpoint at https://data.someservice.xyz/api/report, can you check its trust score and tell me if it's actually live and settling so I don't waste money?”
Auditing a new x402 marketplace listing
“I found this x402 API at https://payments.newprovider.io/api/feed — what's its settle-check verdict? I want to know the score and whether there's real settlement evidence before I list it in my directory.”
Monitoring an x402 endpoint for liveness
“Keep an eye on whether https://api.mypaidservice.com/data is showing a live_settling verdict — I want to know if it drops trust score or stops settling at any point.”
Technical details
Endpoint
GEThttps://settle-check.vercel.app/api/trust/probeWhen to prefer
Use this endpoint when you need to verify the liveness and settlement integrity of an x402 pay-per-call endpoint before spending money on it, listing it in a directory, or routing agent traffic to it. It is specifically designed for the x402 protocol ecosystem with Mogami/Base/USDC settlement evidence — prefer it over generic uptime monitors when payment settlement verification is the primary concern.
Side effects
- Target URL is unreachable or returns non-402 response — may result in low score or error verdict
- Missing or malformed 'url' query parameter — likely returns 400 or schema validation error
- Target endpoint has expired or stale settlement evidence — lower trust score or non-live verdict
- Rate limiting or payment failure for the probe call itself ($0.001 USDC required)
- Mogami settlement network unavailability causing inconclusive verdict
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"score": 100,
"verdict": "live_settling"
}
}Tags
x402
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