GETinvalid 402 · origin reachablediscovery only
Base USDC x402 Quick Review
Focused paid readback for one Base USDC/x402 endpoint, marketplace listing, webhook, or payment challenge. Returns proof commands, blockers, and next patch recommendation.
https://x402-wallet-readiness-service.vercel.app/api/x402/services/quick-review?goal=Verify+the+x402+payment+challenge+and+identify+the+next+patch&repository_or_url=https%3A%2F%2Fgithub.com%2Fexample%2Fproject
USE THIS RESOURCE
Start with a quote-only recipe. Payment signing stays in your project.
CODE
AI CODING TOOLS
quote-check.ts
const response = await fetch("https://x402-wallet-readiness-service.vercel.app/api/x402/services/quick-review?goal=Verify+the+x402+payment+challenge+and+identify+the+next+patch&repository_or_url=https%3A%2F%2Fgithub.com%2Fexample%2Fproject", {
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://x402-wallet-readiness-service.vercel.app/ returned 200.
- Observed in 402-index
Discovered through self-registered.
- Registry record checked
Registry health: healthy.
EVIDENCE
402-indexobserved 2026-07-10 · https://402index.io/api/v1/services
origin checkHEAD https://x402-wallet-readiness-service.vercel.app/ → 200 on 2026-07-10
route quoteHTTP 402 returned, but its payment requirements failed protocol validation · 2026-07-10
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.
PAYMENT OPTIONS
The registry did not expose full payment options for this record.