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x402.fuchss.app Trust Score API
x402
x402.fuchss.app Trust Score API is a paid API for AI agents from x402.fuchss.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Returns a 0-100 trust and reliability score for any x402 pay-per-call endpoint, based on 30-day uptime, compliance, latency, and on-chain settlement volume.
Price / call$0.005
Success—
StatusUnknown
How this service works
Trust, reputation & reliability scores for x402 endpoints. We monitor every listed x402 service 24/7: uptime probes, 402-envelope compliance, price history, and real on-chain USDC settlement volume. Free grade & recommendation for any endpoint, $0.005 for a full data breakdown.
Output
Returns a JSON object with a 0-100 trust score, a letter grade (A/B/C/D/F), per-component subscores (uptime, compliance, latency, age, activity, stability), raw 30-day stats, a confidence value between 0 and 1, and a flags object with machine-readable issue slugs. The resource URL is echoed back for confirmation.
Example use cases
Example prompt
“Can you pull the trust score for https://api.example.com/v1/some-x402-endpoint and tell me the grade, uptime stats, and any compliance issues flagged over the past 30 days?”
Technical details
Endpoint
POSThttps://x402.fuchss.app/v1/x402-trustWhen to prefer
Use this endpoint when you need to evaluate whether a specific x402 pay-per-call API is trustworthy before integrating or paying for it — especially when you want objective, continuously monitored metrics like uptime, 402-envelope compliance, latency history, and real on-chain USDC settlement volume rather than self-reported claims.
Side effects
- Unknown or unmonitored resource URL returns low confidence score or empty stats
- Malformed URL input returns validation error
- Service not yet listed in discovery returns insufficient observation data
- Network timeout if x402.fuchss.app monitoring backend is temporarily unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| resource | string |
Output
Schema · Response
{
"type": "json",
"example": {
"flags": [],
"grade": "A",
"score": 87.4,
"stats": {
"payTo": "0xabc…123",
"delisted": false,
"probes30d": 1440,
"probeOk30d": 1427,
"avgLatencyMs": 312,
"observedDays": 5,
"settlements30d": 18234,
"distinctPayers30d": 96,
"settledVolumeUnits30d": "364680000"
},
"$schema": "https://x402.fuchss.app/schemas/x402-trust.schema.json",
"resource": "https://api.example.com/v1/thing",
"breakdown": {
"uptime": 0.99,
"latency": 0.91,
"observedAge": 0.6,
"priceStability": 1,
"envelopeCompliance": 1,
"settlementActivity": 0.74
},
"confidence": 0.82,
"schemaType": "x402-trust",
"description": "Provider-advertised description of the endpoint (unverified claim).",
"serviceName": "Example Thing API",
"schemaVersion": "1.0.0",
"dataCompleteSince": 1748736000000
}
}Tags
x402
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