x402 Payment Challenge Policy AuditPOST /v1/x402-challenge-audit · x402 API by LineageLint
Deterministic buyer-side preflight for captured x402 v1/v2 challenges. Checks exact scheme, Base network, USDC asset, recipient substitution, atomic amount budget, timeout, HTTPS binding, signing metadata, and optional Bazaar discovery without contacting a resource or wallet.
What does this x402 API do?
x402 Payment Challenge Policy Audit. This is an x402-gated POST API resource from LineageLint. TOLL·402 did not invoke this route automatically because doing so was not considered safe. The listing records $0.05 USD-denominated per request on Base. No settled paid call has been verified.
- Published price
- $0.05 USD-denominated per request
- Networks
- Base
- Latest evidence
- TOLL·402 did not invoke this route automatically because doing so was not considered safe
- Resource ID
- 8d14410500224252f88da1ca
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://47-85-47-24.sslip.io/v1/x402-challenge-audit", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({
"replace": "with provider-approved input"
}),
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.Review the provider input schema before running this non-read-only method. No payment code is included.
- Observed in 402-index
Discovered through self-registered.
- Exact route checked
not safely testable · potentially-mutating-method:POST
- Origin reachable
OPTIONS https://47-85-47-24.sslip.io/ returned 405.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is $0.05 USD-denominated per request. Raw protocol requirements remain visible below for implementation and audit use.