{"uid":"cap_ATqtlqzmiCfXCe49ERIks","slug":"sip-udp-srv-record-lookup-via-cloudflare-doh-fabbc830","name":"SIP UDP SRV Record Lookup via Cloudflare DoH","description":"SIP service discovery (_sip._udp.<domain>): SRV records with priority, weight, port and target host, from Cloudflare DoH. Tells a client where the domain's sip service lives without guessing hosts. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/srv/sip-udp?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_0rZiOs7Mh6GgyIE0ge7tP","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 _sip._udp SRV DNS records for a domain using Cloudflare DNS over HTTPS, returning priority, weight, port, and target host for the domain's SIP service.","exampleAgentPrompt":"Can you look up the _sip._udp SRV DNS records for example.com and tell me the target host, port, priority, and weight so I know where its SIP service is pointing?","exampleUseCases":[{"title":"VoIP provider SIP endpoint discovery","prompt":"I need to find out where the SIP service lives for voip-provider.com — can you look up the _sip._udp SRV records and give me the hostname, port, priority, and weight?"},{"title":"SIP federation troubleshooting","prompt":"We're having trouble routing SIP calls to partner.org — can you check the _sip._udp SRV records for partner.org so we can see if their SIP target host and port are configured correctly?"},{"title":"Telecom domain audit","prompt":"I'm auditing DNS configs for a list of domains — start with telecom-company.net and pull its _sip._udp SRV records so I can see the priority, weight, port, and destination host."}],"resultDescription":"Returns the _sip._udp SRV DNS records for the queried domain as resolved by Cloudflare DoH, including one or more records each containing priority, weight, port number, and target hostname, along with the TTL and DNS response code.","failureModes":["Domain has no _sip._udp SRV records (NXDOMAIN or empty answer section)","Domain does not exist (NXDOMAIN)","Cloudflare DoH is temporarily unavailable","Malformed or missing domain input parameter","DNS resolution timeout"],"whenToPreferThis":"Use this endpoint when you need to programmatically discover where a domain's SIP (Session Initiation Protocol) service is hosted, specifically via the _sip._udp SRV record. Prefer it over generic DNS lookups when you need SIP-specific service discovery with priority and weight metadata for load balancing or failover logic. It is ideal for VoIP provisioning, SIP federation setup, or network auditing workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:34.593Z","isFirstParty":false,"canonicalSlug":"sip-udp-srv-record-lookup-via-cloudflare-doh-fabbc830"}