{"uid":"cap_QqAATJcfCc77aeHgEOvkh","slug":"srv-dns-service-discovery-for-dns-udp-b1fc0a43","name":"SRV DNS Service Discovery for DNS-UDP","description":"DNS service discovery (_dns._udp.<domain>): SRV records with priority, weight, port and target host, from Cloudflare DoH. Tells a client where the domain's dns service lives without guessing hosts. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/srv/dns-udp?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_yWn5gD001NKTQOI78arkU","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up _dns._udp SRV records for a domain via Cloudflare DoH, returning the priority, weight, port, and target host of the domain's DNS service.","exampleAgentPrompt":"Look up the _dns._udp SRV service discovery records for example.com using Cloudflare DoH and tell me the target host, port, priority, and weight.","exampleUseCases":[{"title":"Locate domain's DNS service endpoint","prompt":"Can you find out where the DNS service lives for cloudflare.com? I need the SRV record details — host, port, priority, and weight from the _dns._udp lookup."},{"title":"Validate DNS service configuration","prompt":"Check the _dns._udp SRV records for mycompany.net — I want to confirm the DNS service is pointing to the right host and port before we do a migration."},{"title":"Infrastructure audit of DNS service discovery","prompt":"Pull the SRV service discovery records for _dns._udp on openai.com so I can document what DNS server target and port are advertised publicly."}],"resultDescription":"Returns SRV record data for the _dns._udp service under the queried domain, including: priority, weight, port number, and target hostname, along with the TTL and DNS response code, as resolved by Cloudflare DoH.","failureModes":["Domain has no _dns._udp SRV records — returns empty answer set or NXDOMAIN","Invalid or malformed domain name input — request may fail or return an error response","Domain exists but SRV record type is not published — NOERROR with empty answer","Cloudflare DoH upstream timeout or failure — service may return error or no data","Missing required input parameters — request rejected before DNS resolution"],"whenToPreferThis":"Use this endpoint when you need to programmatically discover where a domain's DNS service is hosted via the standardized _dns._udp SRV record mechanism, particularly when you do not want to guess hostnames. Prefer this over generic DNS A/AAAA lookups when the goal is service discovery (host + port + priority + weight) for a domain's DNS infrastructure, and when Cloudflare DoH is an acceptable resolver.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T06:58:07.757Z","isFirstParty":false,"canonicalSlug":"srv-dns-service-discovery-for-dns-udp-b1fc0a43"}