{"name":"onyx_dns_lookup","tier":"metered","price_usdc":"0.001","endpoint":"https://onyx-actions.onrender.com/v1/onyx_dns_lookup","method":"POST","input_schema":{"type":"object","properties":{"host":{"type":"string","description":"Domain (example.com) or IP address"}},"required":["host"]},"description":"Resolve a domain to its A/AAAA records, or reverse-resolve an IP to its hostname. Useful for validating a domain exists before scraping, checking if two domains share infrastructure, mapping CDN origins, or doing safety lookups before agents call third-party APIs. Returns IPv4, IPv6, canonical hostname, and resolution time. Powered by stdlib so results are whatever the host's DNS resolver returns — typically 20-100ms.","when_to_use":null,"vs_alternatives":null,"example_request":null,"example_response":null,"settle_to":"0x3fD9ee1373562f894D322B37DFFAd7a5D2b2d78f","network":"base","facilitator":"https://facilitator.xpay.sh","payment_required":true,"free_introspection":true,"note":"GET this URL = free introspection card. POST with x402 payment header to call."}