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is-port-110-open-watch
x402
is-port-110-open-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 2026-10-13).
Change-watch for TCP port 110 (POP3) availability on a host: runs the check, diffs against the previous result (retained 90 days), and returns what changed.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for is port 110 open: runs the check, compares it with the result from your previous call for the same host (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 open/closed status of TCP port 110, a boolean 'changed' flag indicating whether the result differs from the previous call for the same host, a list of fields that changed with before/after values, and the timestamp of when the state was last observed. Previous results are retained for 90 days.
Example use cases
Mail server POP3 outage alerting
“Watch port 110 on our mail server at 203.0.113.45 and alert me the moment it goes from open to closed — I need to know immediately if POP3 goes down.”
Detecting unauthorized POP3 exposure
“Check whether port 110 on 198.51.100.22 has changed state since the last scan — I want to know if it's suddenly become open when it shouldn't be.”
Scheduled infrastructure change monitoring
“Poll port 110 on smtp.mycompany.org every hour and tell me each time the status changes, including what it was before and what it is now.”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/watch/ip/port/110?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to detect changes in port 110 (POP3) availability over time rather than just a one-shot open/closed check. It is ideal for scheduled monitoring workflows where you want to be alerted only when something changes, saving unnecessary processing of identical results. Prefer it over plain port-check endpoints when you need the before/after diff and change timestamp built in.
Side effects
- Host unreachable or invalid hostname — check may return error or indeterminate status
- No prior result stored for host — first call returns current state with no diff (changed: false)
- Firewall or network filtering at scan origin may cause false 'closed' readings
- Stored previous result expired after 90 days — treated as first-time check
- Rate limit or payment failure — call rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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