{"uid":"cap_dck4ocbwkGBDyoGokZ-78","slug":"signaldesk-ai-ipv4-reverse-dns-lookup-5efa4198","name":"SignalDesk AI IPv4 Reverse DNS Lookup","description":"Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.","url":"https://x402-agent.kariguetoazul.workers.dev/api/network/ipv4-reverse?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"ip":{"type":"string","maxLength":15,"description":"IPv4 address."}}},"responseSchema":{"type":"json","example":{"ptr_name":"4.4.8.8.in-addr.arpa"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_8Z8_WLAKfWTobbpYrXxO8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Performs a reverse DNS lookup on an IPv4 address and returns its PTR record name","exampleAgentPrompt":"What's the reverse DNS PTR record for the IP address 203.0.113.42?","exampleUseCases":[{"title":"Mail server IP verification","prompt":"I need to verify the reverse DNS for IP 198.51.100.25 — what PTR record does it have? We're troubleshooting email deliverability issues."},{"title":"Security investigation of suspicious IP","prompt":"Can you do a reverse DNS lookup on 185.220.101.7? I'm investigating a suspicious connection in our server logs and want to know what hostname it maps to."},{"title":"Network infrastructure audit","prompt":"What's the PTR record for 192.0.2.1? I'm auditing our network ranges to make sure all our IPs have proper reverse DNS configured."}],"resultDescription":"A JSON object containing the PTR record name for the queried IPv4 address, expressed in reverse in-addr.arpa notation (e.g. {\"ptr_name\": \"4.4.8.8.in-addr.arpa\"}). If no PTR record exists, the response may return null or an empty value.","failureModes":["Invalid or malformed IPv4 address returns an error","IP addresses with no PTR record may return null or empty ptr_name","Private/RFC1918 addresses may not resolve or return internal records","Rate limiting or quota exhaustion may block requests","Network timeouts if upstream DNS is slow to respond"],"whenToPreferThis":"Use this endpoint when you need a quick, cheap ($0.001 USDC) reverse DNS resolution of a single IPv4 address and want a simple PTR record back. Prefer this over general DNS APIs when working in an x402 micropayment context or when integrating reverse DNS as part of an automated agent workflow that already uses SignalDesk AI tools.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:42:01.708Z","isFirstParty":false,"canonicalSlug":"signaldesk-ai-ipv4-reverse-dns-lookup-5efa4198"}