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Domain Intel — WHOIS, DNS, TLS & Subdomain Lookup (x402)
x402
Domain Intel — WHOIS, DNS, TLS & Subdomain Lookup (x402) is a paid API for AI agents from dns.halowerk.com, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-13).
Given a domain name, returns WHOIS registration data, DNS records, mail policy (SPF/DKIM/DMARC), TLS certificate details, and discovered subdomains — paid per call in USDC via x402.
Price / call$0.009
Success—
StatusUnknown
How this service works
Domain in, WHOIS, DNS, mail policy, TLS certificate and subdomains out. Pay per call in USDC over x402. No signup, no API key.
Output
A structured report containing: WHOIS registration details (registrar, registrant, expiry dates), full DNS record set (A, AAAA, MX, NS, TXT, CAA, SOA), mail policy configuration (SPF, DKIM, DMARC), TLS/SSL certificate metadata, and a list of discovered subdomains. Optionally diff'd against a provided baseline snapshot.
Example use cases
Pre-acquisition domain due diligence
“Before we finalize this deal, can you pull a full domain intel report on acmecorp.io — I want to see the WHOIS ownership info, when it expires, all DNS records, their TLS cert, and any subdomains that show up?”
Email deliverability security audit
“Check the mail policy for contoso.com — I need to know if they have SPF, DKIM, and DMARC configured correctly, and pull the MX records too.”
DNS change monitoring against baseline
“Here's the DNS snapshot I took last week for shopify.com — can you run a new domain intel lookup and tell me if anything has changed in the records since then?”
Technical details
Endpoint
POSThttps://dns.halowerk.com/domain/articles/ns-dynadot?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-signal domain intelligence snapshot in a single call — combining WHOIS, DNS, mail policy, TLS, and subdomains — without signing up for an account or managing API keys. It is ideal for one-off or infrequent lookups where pay-per-call economics (\$0.009 USDC) are preferable to subscription plans. The optional baseline parameter makes it useful for change-detection workflows comparing current state against a prior snapshot.
Side effects
- Domain not found or invalid — returns error if the domain string is malformed or unresolvable
- WHOIS rate limiting — some registries throttle lookups, potentially returning partial data
- TLS certificate unavailable — if the domain has no HTTPS endpoint, cert data will be absent
- Subdomain enumeration may be incomplete — passive enumeration only, not guaranteed exhaustive
- x402 payment failure — if USDC payment is rejected, the call returns 402 with no data
- Baseline schema mismatch — if baseline object fields are malformed, validation error is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | |
| baseline | object |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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