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Domain Intel — WHOIS, DNS, TLS & Subdomain Lookup via x402
x402
Domain Intel — WHOIS, DNS, TLS & Subdomain Lookup via 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, DNS records, mail policy (SPF/DKIM/DMARC), TLS certificate details, and subdomains — paid per call in USDC via x402, no signup required.
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
Returns a comprehensive domain intelligence object including WHOIS registration data, full DNS record set, mail policy records (SPF, DKIM, DMARC), TLS/SSL certificate details including issuer and expiry, and a list of discovered subdomains. When a baseline is provided, may also surface detected changes relative to that snapshot.
Example use cases
Security audit before vendor onboarding
“Before we onboard acmecorp.com as a vendor, can you pull their full domain intel — WHOIS ownership, DNS records, mail policy like SPF and DMARC, and their TLS certificate status?”
Detect DNS drift from known baseline
“I have a baseline snapshot of records for clientsite.net from last Tuesday — can you check if anything has changed in the DNS records since then?”
Email deliverability troubleshooting
“Our emails from startup.io keep landing in spam — can you pull the full mail policy records including SPF, DKIM, and DMARC for startup.io so I can see what's misconfigured?”
Technical details
Endpoint
POSThttps://dns.halowerk.com/domain/articles/ns-cloudns?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single-call aggregation of domain intelligence across WHOIS, DNS, mail policy, TLS, and subdomains without signing up for an account or managing API keys. Ideal for agents that need pay-per-use pricing in USDC via x402, especially for ad hoc or infrequent domain lookups where subscription-based services like SecurityTrails or WhoisXML API are overkill. Best when you want a combined multi-signal view rather than hitting separate WHOIS, DNS, and certificate APIs individually.
Side effects
- Domain not found or unresolvable — likely returns empty or error payload
- Invalid domain format exceeding 253 characters — schema validation rejection
- Payment failure via x402 — call not processed if USDC payment not confirmed
- Rate limiting or upstream WHOIS/DNS resolver unavailability — transient errors
- Private/redacted WHOIS data — registration info may be minimal due to GDPR redaction
- Baseline mismatch if observed_at or records are malformed
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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