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validate-email-address-watch
x402
validate-email-address-watch is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Monitors an email address validation result over time and reports when it changes, returning current validity status, a changed flag, and field-level diffs with before/after values.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for validate email address: runs the check and compares it with the result from your previous call for the same email (kept 90 days), returning the current answer, changed true/false, exactly which fields changed with before/after values, and when it was last seen. Call it on a schedule to be told when validate email address changes. $0.01 per check.
Output
Returns the current email validation answer, a boolean 'changed' flag indicating whether any field differs from the previous check (stored up to 90 days), a list of exactly which fields changed with their before and after values, and a timestamp of when the email was last seen.
Example use cases
Monitor user email after signup
“Watch the email john.doe@somecompany.com on a schedule and alert me if its validation result ever changes — I want to know which specific fields flipped and what the old and new values are.”
Track disposable email status over time
“Start monitoring throwaway@tempmail.io for me and compare each check against the previous one — tell me if its disposable or deliverable status changes between checks.”
Email hygiene drift detection for CRM
“Check whether the validation result for contact@oldclient.biz has changed since the last time we checked, and give me a field-by-field diff showing exactly what's different now versus before.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/watch/validate-emailWhen to prefer
Choose this endpoint when you need to detect changes in email validity over time rather than just a one-time check. It is ideal for scheduled monitoring workflows, CRM hygiene pipelines, or any agent that needs to be notified when a previously valid email becomes invalid (or vice versa), including changes in sub-fields like disposability, deliverability, or MX record status. Prefer it over a plain validate-email call when the diff and change-detection logic matters more than the raw current result.
Side effects
- Email address not previously checked — no baseline exists yet, so 'changed' cannot be computed on first call
- Email format is invalid — validation may fail before comparison is possible
- Cached baseline expired — results older than 90 days are purged, losing the comparison baseline
- Payment not completed — x402 payment required before result is returned
- Network or DNS lookup failure during validation — may return error instead of diff
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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