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SPF Authorizes Calendly Change Watch
x402
SPF Authorizes Calendly 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 SPF record authorizes Calendly to send mail, alerting when the authorization status changes between checks.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for spf authorizes calendly: 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 boolean answer for whether the domain's SPF record authorizes Calendly, a changed true/false flag comparing to the previous check (retained for 90 days), the specific fields that changed with before and after values, and the timestamp of when the state was last seen.
Example use cases
Email deliverability drift detection
“Watch acmecorp.com and tell me immediately if their SPF record stops authorizing Calendly — I need to know if that changes from what it was last time.”
Security audit of third-party senders
“I'm auditing which domains have Calendly in their SPF records. Check startupxyz.com and tell me if the Calendly SPF authorization status has changed since the last check.”
Customer onboarding SPF verification
“We just set up Calendly email sending for client domain clientbrand.com — can you monitor their SPF record and alert me if the Calendly authorization ever disappears?”
Technical details
Endpoint
GEThttps://email.intel.rallylive.ca/watch/email/spf-authorizes/calendly?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to be alerted to changes in Calendly SPF authorization over time, rather than just a one-time point-in-time check. It is ideal for scheduling recurring polls to detect configuration drift, unauthorized removal of Calendly from SPF records, or accidental SPF changes — especially in security auditing, email deliverability monitoring, or customer domain onboarding workflows.
Side effects
- Domain not found or has no SPF record — returns current answer as false with no prior comparison data
- First-time check for a domain — no previous result stored so changed field is not meaningful
- DNS resolution failure via Cloudflare DoH — may return an error or stale result
- 90-day retention window exceeded — previous result purged, comparison resets
- Payment failure — x402 micropayment not processed, request rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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