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x402 Endpoint Preflight Trust Check
x402
x402 Endpoint Preflight Trust Check is a paid API for AI agents from api.agentstools.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Performs a composite trust assessment of an x402 payment endpoint before an agent commits funds, returning a 0-100 trust score, category label, and per-dimension signals.
Price / call$0.005
Success—
StatusUnknown
How this service works
Preflight trust check of another x402 endpoint before an agent pays it. From the target resource URL: a composite trust score 0-100, a category (trusted / caution / untrusted / unknown), per-dimension flags, reasons and weighted signals. Scored from CDP x402 Bazaar discovery, an on-chain USDC payment-diversity sample, and a live 402 probe that the served payTo matches the listing. Trust indicators, not a guarantee.
Output
Returns a composite trust score from 0 to 100, a categorical label (trusted, caution, untrusted, or unknown), per-dimension boolean flags, human-readable reasons, and weighted signals derived from CDP x402 Bazaar discovery data, on-chain USDC payment diversity sampling, and a live 402 probe confirming the payTo address matches the listing.
Example use cases
Example prompt
“Before my agent pays it, run a preflight trust check on the x402 endpoint at https://api.example.com/data using a GET request and tell me the trust score, category, and any red flags.”
Technical details
Endpoint
GEThttps://api.agentstools.dev/preflightWhen to prefer
Use this endpoint whenever an AI agent is about to pay an unfamiliar x402 endpoint and needs a pre-payment risk signal. It is specifically designed for x402 protocol trust assessment combining on-chain, discovery, and live-probe signals — prefer it over generic URL scanners or reputation APIs when the target is a pay-per-call API using the x402 standard.
Side effects
- Target URL is unreachable or returns non-402 response — probe dimension marked failed
- URL is not listed in CDP x402 Bazaar — results in 'unknown' category with low score
- Invalid or unsupported HTTP method provided — request validation error
- Target network not supported — network dimension skipped or errored
- Score is indicative only — endpoint may still be fraudulent despite high score
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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