Proof402 x402 Challenge AuditGET /api/x402-audit · x402 API by Proof402
Inspects an unpaid public x402 challenge and returns compatibility findings without paying the target endpoint.
What does this x402 API do?
Proof402 x402 Challenge Audit. This is an x402-gated GET API resource from Proof402. TOLL·402 records origin reachable evidence as of 2026-08-11. The listing records $0.25 USD-denominated per request on Base. No settled paid call has been verified.
- Published price
- $0.25 USD-denominated per request
- Networks
- Base
- Latest evidence
- TOLL·402 records origin reachable evidence as of 2026-08-11
- Resource ID
- c49bed77d5790945f5d13eb8
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://proof402.15-204-209-67.sslip.io/api/x402-audit?url=https%3A%2F%2Fexample.com", {
method: "GET",
});
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.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Exact route checked
http 402 invalid · accept-0:resource-mismatch;accepts-missing
- Origin reachable
HEAD https://proof402.15-204-209-67.sslip.io/ returned 200.
- Observed in 402-index
Discovered through self-registered.
- 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 $0.25 USD-denominated per request. Raw protocol requirements remain visible below for implementation and audit use.