{"endpoint":"/api/probe/fetch","method":"POST","price":"$0.01","description":"Cheap URL probe — status, redirects, content-type, X-Robots-Tag","auth":{"paid":"x402 payment proof on retry after 402"},"sampleRequest":{"url":"https://example.com"},"sampleResponseShape":{"data":{"status":200,"redirected":false,"contentType":"text/html"}},"related":{"examples":"/api/examples/probe-fetch","catalog":"/api/catalog","pricing":"/api/pricing","docs":"/docs"}}