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Public Data API – Domain Mail Security (x402)
x402
Public Data API – Domain Mail Security (x402) is a paid API for AI agents from x402-data-api-x6da.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Looks up mail security DNS records (SPF, DKIM, DMARC, MX, TLS) for one or more domains, paid per call in USDC via x402.
Price / call$0.01
Success—
StatusUnknown
How this service works
Jobs from company ATS boards, SEC EDGAR full-text search, domain RDAP/DNS, NHTSA VIN decode + recalls, the CMS NPI Registry and MET Norway weather forecasts. Pay per call in USDC on Solana via x402. Official public sources only.
Output
Returns DNS-sourced mail security information for each requested domain, including SPF record content, DMARC policy and tags, MX host records, DKIM selectors if detectable, and optionally TLS status — enabling assessment of email spoofing protection and deliverability configuration.
Example use cases
Pre-send email deliverability audit
“Before we launch this email campaign, can you verify that all our sending domains — mailer.mycompany.com, newsletters.mycompany.com — have valid SPF and DMARC records set up?”
Vendor security due diligence
“I need to check the mail security posture of three vendors we're onboarding: vendor-a.com, vendor-b.com, and vendor-c.com — pull their SPF, DMARC, and MX records and flag anything missing.”
Phishing risk assessment
“Can you look up whether competitor-brand.com has DMARC enforcement in place? I want to know if someone could spoof emails from their domain.”
Technical details
Endpoint
GEThttps://x402-data-api-x6da.onrender.com/v1/domains/mail-security?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need authoritative, real-time DNS mail security records (SPF, DMARC, MX, TLS) for one or more domains without managing DNS resolution infrastructure yourself. It is especially useful for bulk checks of up to 20 domains per call at $0.01 USDC per call — suitable for due diligence workflows, deliverability audits, and phishing risk assessments. Prefer alternatives if you need deeper WHOIS registrant data or full RDAP records beyond mail security.
Side effects
- Domain not found or does not exist — returns empty or error record
- No SPF/DMARC records configured — fields returned as null or absent
- Rate limit exceeded for comma-separated bulk list (max 20 domains)
- Payment not settled via x402 — 402 response before data is returned
- TLS check flag ignored or unavailable for certain providers
- DNS timeout for slow-resolving domains
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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