x402 payment inspector

Parse an HTTP 402 or x402 challenge for network, payTo, asset, and amount. Fetch is best-effort because of CORS.

URL to try (optional)

Raw response, headers, or JSON

CORS

Browsers often cannot read a cross-origin 402 unless the server sends Access-Control-Allow-Origin and exposes payment headers. Paste curl -D - output when fetch fails. This page does not pay anyone.

Result

CORS