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x402 Web Tools – DNS Lookup
x402
x402 Web Tools – DNS Lookup is a paid API for AI agents from web.kagurazaka.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-29).
Resolves DNS records (A, AAAA, CNAME, MX, TXT, NS, CAA, SOA) for a domain using Cloudflare and Google public resolvers, and reports whether the domain exists.
Price / call$0.001
Success—
StatusUnknown
How this service works
A, AAAA, CNAME, MX, TXT, NS, CAA and SOA records of a domain from public resolvers (Cloudflare and Google), or just the types you ask for, and whether the domain exists.
Output
A JSON object containing the domain name, a boolean 'exists' field indicating whether the domain has DNS records, and a 'records' object whose keys are DNS record types (A, AAAA, CNAME, MX, TXT, NS, CAA, SOA) with their resolved values. MX records include exchange hostname and priority. Only requested record types are included if specific types are requested.
Example use cases
Verify email deliverability setup
“Can you pull the MX and TXT DNS records for mycompany.com so I can check that the SPF and DKIM records are configured correctly?”
Confirm new domain is live
“I just pointed my domain newstartup.io to our server — can you check if the A records are resolving correctly and whether the domain exists in DNS yet?”
Audit nameserver delegation
“Look up the NS and SOA records for example.org — I need to confirm which nameservers are authoritative for it.”
Technical details
Endpoint
GEThttps://web.kagurazaka.dev/v1/dns?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need authoritative, real-time DNS record data from both Cloudflare and Google public resolvers simultaneously. It's ideal for infrastructure verification, email configuration auditing, domain existence checks, and security research. Prefer it over WHOIS tools when you need resolved DNS values rather than registration metadata, and over manual dig/nslookup when you need structured JSON output in an agent workflow.
Side effects
- Domain does not exist — returns exists: false with empty records
- Invalid domain name format — likely returns an error or empty response
- Requested record type not found — that key is absent from the records object
- Transient DNS resolver failure (Cloudflare/Google outage) — may return partial or empty results
- Rate limiting or payment failure — 402 response if payment is not attached
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "x402.org",
"exists": true,
"records": {
"A": [
"104.21.0.1"
],
"MX": [
{
"exchange": "mx.example",
"priority": 10
}
],
"TXT": [
"v=spf1 -all"
]
}
}
}Tags
x402
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