{"preview":true,"product":"Agent Website Preflight","paid_method":"POST","paid_url":"https://ohd-machine-x402-v2.hibiki3027.workers.dev/api/preflight","price_usd":0.05,"network":"eip155:8453","networks":["eip155:8453","eip155:42161"],"asset":"USDC","example_request":{"site_url":"https://example.com"},"example_response":{"machine_verifiable":true,"url_health":{"verdict":"BUY","reason_codes":[],"recommended_action":"proceed"}},"note":"This GET is a fixed preview only. Arbitrary-target analysis requires the paid POST x402 flow."}