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Reverse DNS via OpenDNS Change Watch
x402
Reverse DNS via OpenDNS Change Watch is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).
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.
Price / call$0.02
Success—
StatusUnknown
How this service works
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.
Output
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.
Example use cases
Alert on infrastructure hostname change
“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.”
Track CDN or hosting provider migration
“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.”
Security monitoring for suspicious re-pointing
“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.”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/watch/ip/ptr/via/opendns?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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