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SPF Lookup Budget Estimate for Email Operations
x402
SPF Lookup Budget Estimate for Email Operations is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Counts the number of DNS lookup mechanisms in a domain's SPF policy to estimate whether it stays within the 10-lookup RFC limit
Price / call$0.01
Success—
StatusUnknown
How this service works
SPF lookup budget estimate for Email operations: Count common DNS lookup mechanisms in an SPF policy; this is a static estimate. DNS data only; does not send email or verify that an inbox exists.
Output
Returns a static count of DNS-resolving mechanisms (such as include, a, mx, ptr, exists, redirect) found in the domain's SPF record, giving an estimate of how many of the 10 allowed DNS lookups the policy consumes. Does not perform live DNS resolution chains or verify email inbox existence.
Example use cases
Pre-send deliverability audit
“Before I add another email vendor to our SPF record, check how many DNS lookups salesforce.com's current SPF policy already uses — I need to know if we have budget left.”
Diagnosing SPF permerror
“Our emails are bouncing with an SPF permerror — can you count the DNS lookup mechanisms in the SPF record for acme.com to see if we've exceeded the 10-lookup limit?”
Routine domain SPF health check
“As part of our monthly email health check, count the SPF lookup mechanisms for newsletter.example.com so we can track whether we're approaching the RFC limit.”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/demand-domain-spf-lookup-count-email-operations?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, cheap static estimate of SPF lookup depth for a domain without performing full recursive DNS resolution. Ideal for pre-flight checks before adding new email senders, diagnosing SPF permerror causes, or monitoring SPF policy complexity over time. Prefer this over full SPF validation tools when you only need the lookup count and not inbox verification or live DNS chain resolution.
Side effects
- Domain has no SPF record — returns zero or an error indicating no TXT record found
- Invalid or malformed domain input — returns a validation error
- Domain does not exist in DNS — returns a lookup failure
- Network or DNS resolution error during SPF TXT record retrieval
- SPF record is syntactically malformed — may return a parse error or partial count
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | Public DNS domain, e.g. example.com. |
Tags
x402
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