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DKIM Selector Lookup
x402
DKIM Selector Lookup 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).
Looks up a DKIM selector record under _domainkey in DNS to retrieve the public key and policy configuration for a given domain and selector name.
Price / call$0.01
Success—
StatusUnknown
How this service works
DKIM selector lookup for Email operations: Look up a supplied DKIM selector under _domainkey. DNS data only; does not send email or verify that an inbox exists.
Output
Returns the raw DNS TXT record data found at {selector}._domainkey.{domain}, including the DKIM public key (p= field), version tag (v=DKIM1), key type (k=), and any other DKIM policy flags present in the record. If no record is found, returns an indication that the selector does not exist in DNS.
Example use cases
Debugging email delivery failures
“My emails from acme.com keep landing in spam — can you check if the DKIM selector 'default' is properly published in DNS for acme.com?”
Auditing third-party sender DKIM setup
“We're onboarding a new email vendor that says they've set up DKIM for our domain example.com using the selector 'sendgrid1' — can you verify that DNS record actually exists?”
Monitoring DKIM key rotation
“Can you pull the current DKIM record for the selector 's2048' on our domain companynews.org so I can confirm the key rotation went through?”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/demand-domain-dkim-selector-check-email-operations?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, low-cost DNS-only lookup of a specific DKIM selector record without sending email or verifying inbox existence. Prefer this over full email verification services when you only need the raw DNS DKIM data, such as during configuration audits, key rotation checks, or debugging email authentication failures. It is not a substitute for full SPF/DMARC analysis or end-to-end email deliverability testing.
Side effects
- Domain does not exist in DNS — NXDOMAIN response
- Selector not found under _domainkey — empty or missing TXT record
- DNS timeout or resolver error — no response returned
- Malformed domain or selector input — validation error
- DKIM record exists but is incorrectly formatted — raw text returned without parsing guarantees
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | Public DNS domain, e.g. example.com. |
| selector | string |
Tags
x402
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