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SparkPost Email Hosting Change Watch
x402
SparkPost Email Hosting Change Watch is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-24).
Monitors whether a domain's email is hosted by SparkPost, comparing current results against a previous check to detect and report any changes.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for is email hosted by sparkpost: 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 SparkPost email hosting status for the domain, a boolean indicating whether the result changed since the last check (stored for 90 days), the specific fields that changed with their before and after values, and the timestamp of when the status was last seen.
Example use cases
Competitor email infrastructure monitoring
“Watch acmecorp.com and alert me if they switch to or away from SparkPost for their email hosting — I want to know the moment anything changes.”
Sales lead email platform detection
“Check if prospectdomain.com has moved to SparkPost since we last looked — I want to see if anything changed and what the before/after values were.”
Customer migration verification
“Has clientbrand.com's email hosting changed to SparkPost yet? Run the watch check and tell me if there's been any change since the last time it was checked.”
Technical details
Endpoint
GEThttps://email.intel.rallylive.ca/watch/email/hosted-by/sparkpost?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to detect changes in SparkPost email hosting over time rather than just a one-time check. It is ideal for scheduled polling workflows where you want to be alerted only when the hosting status actually changes, avoiding noise from repeated identical results. Prefer this over a single point-in-time check when you need audit trails of before/after values and timestamps.
Side effects
- Domain not previously checked — no baseline to compare against, so 'changed' will be null or false
- DNS lookup failure for the domain
- Domain does not exist or is unreachable
- Stale baseline — if more than 90 days have passed since the last check, prior result is purged
- Rate limiting or payment failure ($0.02 USDC required per call)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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