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DKIM Selector Email Change Watch
x402
DKIM Selector Email Change Watch is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-20).
Monitors the DKIM TXT record for the 'email' selector of a domain and returns whether it has changed since the last check, with before/after field diffs.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for dkim selector email: 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.
Output
Returns the current DKIM TXT record for the 'email' selector, a boolean 'changed' flag indicating whether it differs from the previous check (stored up to 90 days), a diff of changed fields with before/after values, and the timestamp of when the record was last seen.
Example use cases
Alert on DKIM key rotation
“Watch the DKIM email selector for acmecorp.com and notify me the moment it changes — I need to know immediately if the key gets rotated so I can update our mail server config.”
Scheduled email security audit
“Every week, check whether the DKIM email selector TXT record for mybusiness.com has changed and give me a before/after comparison of any fields that differ from the previous check.”
Third-party sender monitoring
“I'm using a third-party ESP that manages the DKIM email selector on sendingdomain.io for me — can you watch that record and flag if it's been changed without my knowledge?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/watch/dns/dkim/email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to detect changes to the 'email' DKIM selector specifically (email._domainkey.<domain>), rather than other selectors like 'mail' or 'mj'. It is ideal for scheduled polling workflows where you want diff output (before/after field values) rather than just the raw current record. Prefer it over a plain DKIM lookup when change detection and alerting over time is the primary goal.
Side effects
- Domain not found or does not exist — DNS resolution failure returned
- No previous check stored (first call) — 'changed' will be false or null with no diff
- DKIM selector 'email._domainkey.<domain>' TXT record does not exist — returns empty/not-found result
- Payment not processed — x402 payment required error
- Stale baseline if last check was more than 90 days ago — history expired, treated as first call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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