{"uid":"cap_s-Y--VTTy1kdLFVCRSO5Z","slug":"pennyrail-dns-a-record-lookup-a78765c2","name":"PennyRail DNS A Record Lookup","description":"Machine-readable settlement service","url":"https://pennyrail.vercel.app/api/f/dns.a","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"string","description":"domain string"}}},"responseSchema":{"type":"object","required":["operation","result"],"properties":{"result":{},"operation":{"type":"string"}},"additionalProperties":true},"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_PqqWRiwR7B2hVmqL0tyJg","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":"Resolves a domain name to its DNS A record (IPv4 address) via a paid API endpoint","exampleAgentPrompt":"Can you look up the DNS A record for github.com and tell me what IPv4 address it resolves to?","exampleUseCases":[{"title":"Verify domain DNS before deployment","prompt":"I'm about to deploy my app — can you check what IP address api.mycompany.com resolves to right now so I can confirm the DNS is pointing to the right server?"},{"title":"Investigate suspicious domain activity","prompt":"Someone flagged a suspicious domain called fastlogin-secure.net — can you resolve its A record so I can see what IP it's pointing to?"},{"title":"Automate infrastructure health monitoring","prompt":"Check the A record for status.myservice.io and tell me the IP it currently resolves to so I can compare it against our expected server address."}],"resultDescription":"Returns a JSON object containing the operation name (e.g. 'dns.a') and a result field with the resolved IPv4 address or addresses for the queried domain.","failureModes":["Domain does not exist or has no A record — result may be empty or null","Invalid domain string input — malformed hostname","Network or DNS resolution failure — upstream DNS timeout","Payment failure — x402 payment not accepted, endpoint returns 402","Rate limiting or service unavailability on the Vercel deployment"],"whenToPreferThis":"Choose this endpoint when you need a pay-per-query DNS A record lookup without provisioning your own DNS resolver infrastructure, especially in agent workflows where micro-payment via x402/USDC is already supported. It is a lightweight, per-call option for resolving individual hostnames to IPv4 addresses without API keys or subscriptions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:45:15.481Z","isFirstParty":false}