{"uid":"cap_CbkNcWBxGeOdcNKwx5hCb","slug":"agentshelf-syntexa-ch-dns-ptr-lookup-6a3127aa","name":"agentshelf.syntexa.ch DNS PTR Lookup","description":"Call when an agent needs PTR records at the exact public hostname. An empty answer is records: [] and is billed. Not the bundled reverse-dns SKU. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-ptr first.","url":"https://agentshelf.syntexa.ch/v1/dns-ptr?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"hostname":{"type":"string","examples":["example.com"],"maxLength":253,"minLength":1,"description":"Public DNS hostname such as example.com. Not a URL, not an IP literal, and not a private name."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.007","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":"$0.007/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.007","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.007","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_8do-y21zsyfxWGMTow_6o","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.007","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Performs a PTR (reverse DNS) lookup for a given public hostname and returns the associated PTR records.","exampleAgentPrompt":"Can you look up the PTR records for the hostname mail.example.com?","exampleUseCases":[{"title":"Verify email server reverse DNS","prompt":"Check what PTR records exist for smtp.mycompany.com — I need to confirm our mail server has proper reverse DNS set up."},{"title":"Investigate unfamiliar server hostname","prompt":"Can you do a PTR record lookup on server47.datacenter-east.net and tell me what reverse DNS records come back?"},{"title":"Audit infrastructure hostnames","prompt":"I need to audit our infrastructure — can you pull the PTR records for proxy.internal.acmecorp.io and report what you find?"}],"resultDescription":"Returns an object containing a 'records' array with the PTR records associated with the queried hostname. If no PTR records exist, returns an empty array (records: []), which is still billed.","failureModes":["Empty records array returned when no PTR records exist for the hostname (still billed $0.007)","Invalid or malformed hostname input rejected by schema validation","Network timeout if the DNS lookup takes too long","Hostname exceeds 253 character limit","Payment failure prevents the request from being processed"],"whenToPreferThis":"Use this endpoint when you need PTR (reverse DNS) records for a specific public hostname and the free sandbox endpoint (POST /v1/sandbox/dns-ptr) is unavailable or insufficient. Best when you need production-quality, billed DNS PTR lookups with reliability guarantees. Avoid if you only need to check A/AAAA/MX or other forward DNS record types.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-24T00:53:29.331Z","isFirstParty":false,"canonicalSlug":"agentshelf-syntexa-ch-dns-ptr-lookup-6a3127aa"}