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Certificate Authority Policy Lookup for Email Operations (CAA DNS)
x402
Certificate Authority Policy Lookup for Email Operations (CAA DNS) 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 CAA (Certification Authority Authorization) DNS records for a domain to determine which certificate authorities are authorized to issue certificates for email operations.
Price / call$0.01
Success—
StatusUnknown
How this service works
Certificate authority policy lookup for Email operations: Return CAA records that constrain certificate issuance. DNS data only; does not send email or verify that an inbox exists.
Output
Returns CAA (Certification Authority Authorization) DNS records for the specified domain. These records indicate which certificate authorities are permitted to issue SSL/TLS certificates for email operations on the domain. The response is pure DNS data — it does not verify inbox existence or send any email.
Example use cases
Email TLS certificate CA eligibility check
“Before I request an email certificate from Let's Encrypt, can you check the CAA records for mycompany.com to see if Let's Encrypt is actually authorized to issue certs there?”
Domain security audit for CA constraints
“I'm auditing the DNS configuration for acmecorp.com — can you pull the CAA records so I can see which certificate authorities are permitted to issue certificates for email operations on that domain?”
Troubleshoot certificate issuance failure
“Our certificate vendor is failing to issue an email cert for techstartup.io — can you check the CAA DNS records for that domain to see if there's a policy blocking them?”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/demand-domain-certificate-authorities-email-operations?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically determine which certificate authorities are authorized to issue certificates for email operations on a given domain via CAA DNS policy. Prefer this over manual DNS tools when building automated PKI auditing pipelines, pre-issuance CA eligibility checks, or domain security validation workflows. This endpoint is DNS-only and does not verify email deliverability or inbox existence.
Side effects
- Domain does not exist in DNS — no records returned
- Domain has no CAA records configured — empty result indicating no CA restrictions
- Malformed domain input — validation error
- DNS resolution timeout — transient network failure
- Non-public or internal domain provided — lookup may fail or return unexpected results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | Public DNS domain, e.g. example.com. |
Tags
x402
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