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Citiview Domain Lookup
x402
Citiview Domain Lookup is a paid API for AI agents from agents.citiviewgroup.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-14).
Looks up domain availability, WHOIS/RDAP registration details, DNS records (A/AAAA/MX/NS/TXT), and HTTPS status for any domain name.
Price / call$0.003
Success—
StatusUnknown
How this service works
Domain lookup: availability, registrar, created and expiry dates (RDAP/WHOIS), nameservers, A/AAAA/MX/NS/TXT records, and whether the site answers over HTTPS.
Output
Returns a structured record for the queried domain including: availability status, registrar name, creation and expiry dates from RDAP/WHOIS, nameserver list, all DNS record types (A, AAAA, MX, NS, TXT), and whether the domain responds to HTTPS requests.
Example use cases
Pre-purchase domain research
“Before I try to buy startup.io, can you check if it's already registered, who owns it, when it expires, and whether it has any MX records set up?”
Email deliverability DNS audit
“Check the DNS records for acme-corp.com — specifically I need to see the MX, TXT, and A records to audit their email configuration.”
Competitive domain monitoring
“Look up rival-brand.com for me — I want to know the registrar, creation date, expiry date, nameservers, and whether the site is actually responding over HTTPS.”
Technical details
Endpoint
GEThttps://agents.citiviewgroup.com/v1/domain?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive one-call snapshot of a domain's registration details and DNS configuration together. It is ideal for agents that need to combine WHOIS/RDAP data (registrar, dates, expiry) with live DNS resolution (A, MX, TXT records) and HTTPS reachability in a single lookup, avoiding the need to stitch together multiple separate DNS and WHOIS APIs.
Side effects
- Domain not found or unresolvable — returns empty or null record fields
- Invalid domain format in query parameter — may return 400 or error response
- RDAP/WHOIS data unavailable for certain TLDs or privacy-protected domains — some fields may be null
- DNS propagation lag may cause stale or missing records
- Rate limiting or upstream DNS resolver timeouts may cause delayed or failed responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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