{"service":"x402 Extract Gateway","method":"POST","price":"$0.01 USDC on Base per call","body":{"schema":"JSON object of fields you want","text":"raw text (or)","url":"page to fetch"},"returns":{"data":"an object with exactly your schema's fields (null when not found)","model":"the model that answered","latency_ms":"time taken"},"limits":{"page_fetch_seconds":10,"total_seconds":45,"max_source_chars":30000},"example":{"schema":{"title":"string","price":"number","in_stock":"boolean"},"url":"https://example.com/product"}}