{"uid":"cap_CIEau19ICLJqQhp95hU38","slug":"reverse-dns-via-opendns-change-watch-5ebdbac2","name":"Reverse DNS via OpenDNS Change Watch","description":"Change watch for reverse dns via opendns: runs the check, compares it with the result from your previous call for the same ip (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. $0.02 per check.","url":"https://ip.intel.rallylive.ca/watch/ip/ptr/via/opendns?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_iVSaT75YcGnO4F0_wXwL4","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 reverse DNS (PTR) records for an IP via OpenDNS, detects changes by comparing against the previous result (retained 90 days), and returns current value, changed flag, and field-level diffs.","exampleAgentPrompt":"Keep an eye on the reverse DNS record for 8.8.8.8 using OpenDNS and let me know if it changes — I want to see the before and after values and when it was last checked.","exampleUseCases":[{"title":"Alert on infrastructure hostname change","prompt":"Watch the reverse DNS for 203.0.113.45 via OpenDNS and tell me right away if the PTR record changes — show me what it was before and what it changed to."},{"title":"Track CDN or hosting provider migration","prompt":"I need to know if the hostname behind IP 104.16.0.1 shifts, which would indicate a CDN or hosting change — check the reverse DNS via OpenDNS and flag any difference from the last recorded value."},{"title":"Security monitoring for suspicious re-pointing","prompt":"Monitor 192.0.2.10's PTR record via OpenDNS so I can detect if someone re-points that IP to a different hostname — return whether it changed and the exact before/after values."}],"resultDescription":"Returns the current PTR record result for the IP, a boolean 'changed' flag comparing against the previous call for the same IP (stored up to 90 days), field-level before/after values for any changed fields, and a timestamp of when the record was last seen.","failureModes":["IP address not provided or malformed — query returns an error","No previous result stored (first call) — 'changed' will be false or baseline-only","OpenDNS returns no PTR record for the IP — result reflects NXDOMAIN or empty","Payment failure via x402 — call is not executed","Previous result has expired (older than 90 days) — treated as first call with no comparison baseline"],"whenToPreferThis":"Choose this endpoint when you need to detect changes in reverse DNS (PTR) records for a specific IP over time, rather than just performing a one-time lookup. It is especially useful in scheduled monitoring pipelines, security alerting workflows, or infrastructure change detection where knowing when and how a PTR record changed matters. The 90-day result retention and OpenDNS resolver specificity make it well-suited for long-term drift detection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:43:00.299Z","isFirstParty":false,"canonicalSlug":"reverse-dns-via-opendns-change-watch-5ebdbac2"}