{"uid":"cap_2N71O4tlHyoEFlzpyfUn7","slug":"dns-a-record-change-watch-via-nextdns-8ad31a48","name":"DNS A Record Change Watch via NextDNS","description":"Change watch for dns a via nextdns: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.","url":"https://dns.intel.rallylive.ca/watch/dns/a/via/nextdns?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_btxF33YWYqUHAgAz0ZZ5w","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Monitors DNS A record changes for a domain via NextDNS DoH, comparing the current result to the previously stored result and returning a diff with changed/unchanged status.","exampleAgentPrompt":"Keep an eye on the DNS A record for stripe.com via NextDNS and let me know if it has changed since the last time you checked — show me the before and after values if it has.","exampleUseCases":[{"title":"Detect unexpected IP address changes","prompt":"Watch the DNS A record for api.mycompany.com via NextDNS and tell me if the IP address has changed since your last check — I want to catch any unexpected infrastructure changes."},{"title":"Security alerting for brand domain hijacking","prompt":"Check if the A record for mybrand.com has changed compared to the previous result — I'm worried about DNS hijacking and want to see before and after values if anything shifted."},{"title":"Verify CDN migration DNS cutover","prompt":"Has the A record for shop.example.com changed since the last check via NextDNS? We just migrated to a new CDN and I need to confirm the DNS cutover actually happened."}],"resultDescription":"Returns the current DNS A record answer for the domain, a boolean 'changed' flag indicating whether the result differs from the previous call, a list of fields that changed with before and after values, and a timestamp of when the record was last seen. Previous results are retained for 90 days.","failureModes":["Domain not yet seen — no previous result stored, so 'changed' cannot be determined on the first call","Domain does not exist (NXDOMAIN) — returns empty answer set","NextDNS resolver unreachable — lookup may fail or return error","Invalid domain input — malformed domain names will fail validation","Payment not processed — x402 payment required before response is returned"],"whenToPreferThis":"Use this endpoint when you need to detect changes in DNS A records specifically as resolved by NextDNS (useful for comparing resolver-specific behavior or monitoring in a NextDNS-filtered context), and when you want stateful change detection with before/after diffs rather than a raw one-time lookup. Prefer this over a plain DNS A lookup when your goal is change alerting, scheduled monitoring, or drift detection over time.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T18:55:46.883Z","isFirstParty":false,"canonicalSlug":"dns-a-record-change-watch-via-nextdns-8ad31a48"}