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x402 Trust: Trust Scores for x402 Endpoints
x402
x402 Trust: Trust Scores for x402 Endpoints is a paid API for AI agents from x402-trust.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Returns uptime, compliance, settlement activity, and reliability grades for any x402-protocol API endpoint
Price / call$0.005
Success—
StatusUnknown
How this service works
Trust score (0-100, grade A-F) for any x402 endpoint -- listed in our catalog or not. Unlike uptime-only checkers, we return ECONOMIC PROOF: the REAL on-chain USDC settlement volume and distinct-payer count for the endpoint's payTo address -- is anyone actually paying it, or is it just live? Computed deterministically from continuous monitoring: 30d probe uptime, 402-envelope spec compliance, latency, observed age, on-chain settlement activity, and advertised-price stability. Includes a full component breakdown, machine-readable flags, and an honest observedDays (we report only the history we actually have, with dataCompleteSince marking our gap-free on-chain coverage). Uncataloged endpoints are live-probed on your first query and auto-adopted into the monitored catalog (first-contact score with low confidence -- history accumulates from there). Each paid call also refreshes the endpoint's free public snapshot (page, badge, card), so a fresh score shows everywhere immediately. Know before you pay.
Output
Returns a JSON object containing: an overall letter grade (e.g. A), a numeric trust score (0–100), a detailed breakdown across uptime, latency, observed age, price stability, envelope compliance, and settlement activity (each 0–1), raw 30-day stats (probe counts, successful probes, average latency, settlement count, distinct payers, settled USDC volume), a confidence value, any flags, the endpoint's payTo address, delisting status, and a provider-advertised description and service name.
Example use cases
Pre-purchase x402 API due diligence
“I'm about to integrate https://api.imageservice.io/generate into my agent but I want to know if it's trustworthy first — can you get me the full trust score, uptime, and settlement activity for that x402 endpoint?”
Flagged or delisted endpoint check
“I've been using https://api.datafeeds.io/prices in my pipeline but it's been acting weird lately — run a trust check on it and tell me if it's been delisted or has any compliance flags.”
Comparing x402 endpoint reliability
“I'm choosing between a few x402 data providers and need to vet them — can you get the trust grade and 30-day settlement volume for https://api.provider-alpha.com/v1/feed so I can compare?”
Technical details
Endpoint
POSThttps://x402-trust.com/v1/x402-trustWhen to prefer
Use this endpoint when an AI agent needs to evaluate the trustworthiness of an x402-protocol API before paying for it, integrating it into a pipeline, or recommending it to a user. It is uniquely suited for x402 ecosystem due diligence — covering on-chain USDC settlement volume, 402-envelope compliance, and 24/7 probe-based uptime, none of which generic API monitoring tools provide.
Side effects
- Unknown or unmonitored endpoint returns low confidence score or empty stats
- Endpoint not yet observed returns partial breakdown with low observedAge
- Network timeout if x402-trust.com monitoring backend is unavailable
- Invalid or malformed resource URL causes request rejection
- Very new endpoints may have limited 30-day data, resulting in low confidence
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| resourcerequired | string | Full x402 resource URL exactly as listed in discovery (e.g. https://api.example.com/v1/thing). |
Output
Schema · Response
{
"flags": "array",
"grade": "string",
"score": "number",
"stats": "object",
"resource": "string",
"breakdown": "object",
"confidence": "number"
}Tags
x402
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