{"uid":"cap_-M6Yt0sue5zbaJb4kAmlT","slug":"unprice-dns-nameserver-lookup-6afe87f8","name":"unprice DNS Nameserver Lookup","description":"Tiny paid web services for agents. Pay per request with USDC on Base via x402, plus non-x402 Base USDC tx-hash checkouts for Merchant Feed Audit, Base USDC receipts, and recent wallet statements.","url":"https://volkov.evgeny.m2.fvds.ru/pay/ns?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":{"host":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"ns":["a.iana-servers.net"],"host":"example.com"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ocXmBrpvy7lqSuE3DHzC8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the authoritative nameservers (NS records) for a given hostname via a pay-per-request API using USDC on Base.","exampleAgentPrompt":"Look up the authoritative nameservers for example.com and tell me which DNS servers are responsible for it.","exampleUseCases":[{"title":"Domain infrastructure audit","prompt":"Can you look up the authoritative nameservers for shopify.com? I want to know which DNS provider they use."},{"title":"Verifying DNS delegation","prompt":"Check the nameservers for mybusiness.io — I just transferred the domain and want to confirm it's now pointing to the new NS records."},{"title":"Security reconnaissance for a domain","prompt":"What are the authoritative nameservers for attacker-site.xyz? I'm doing a threat intelligence check on this domain."}],"resultDescription":"Returns a JSON object containing the queried hostname and an array of its authoritative nameserver hostnames, e.g. {\"host\": \"example.com\", \"ns\": [\"a.iana-servers.net\", \"b.iana-servers.net\"]}.","failureModes":["Invalid or non-existent domain returns empty NS array or error","Payment failure (insufficient USDC balance) returns 402 status","Malformed host query parameter may return 400 or unexpected result","DNS resolution timeout for obscure or misconfigured domains"],"whenToPreferThis":"Choose this endpoint when you need a simple, pay-per-use DNS NS record lookup without setting up your own DNS resolver infrastructure. It is ideal for lightweight agent workflows that occasionally need to resolve nameservers on demand and prefer micro-payment billing over subscription APIs. Avoid it for bulk DNS lookups or when low latency at high volume is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T06:32:20.559Z","isFirstParty":false,"canonicalSlug":"unprice-dns-nameserver-lookup-6afe87f8"}