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ipv4.fr DNS Lookup API
x402
ipv4.fr DNS Lookup API is a paid API for AI agents from ipv4.fr, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Performs DNS record lookups for a given domain, returning A, AAAA, MX, TXT, CNAME, NS, and SOA records.
Price / call$0.002
Success—
StatusUnknown
How this service works
Fast, reliable network tools API. IP geolocation, DNS lookup, SSL check, WHOIS, email validation, port scan. Free tier available.
Output
A JSON object keyed by DNS record type (e.g. A, MX, TXT, CNAME, NS, SOA), each containing an array of resolved values. For MX records, includes exchange hostname and priority. The domain name queried is also returned in the response.
Example use cases
Email deliverability configuration check
“Look up the MX and TXT DNS records for sendgrid.com so I can verify SPF and DKIM are properly configured.”
Website IP address resolution
“What's the A record IP address for shopify.com? I need to know which server it's pointing to.”
Domain name server audit
“Fetch the NS and SOA records for cloudflare.com — I want to audit who's authoritative for their DNS.”
Technical details
Endpoint
GEThttps://ipv4.fr/x402/v1/dns/%7Bdomain%7D?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, programmatic DNS lookup without standing up your own resolver. It is especially useful for verifying DNS configuration, checking email routing (MX records), or resolving IPs in automated workflows. At $0.002/call it is cost-effective for on-demand lookups. Prefer it over generic WHOIS tools when the specific need is structured DNS record data rather than registrar ownership information.
Side effects
- Domain does not exist — returns empty or error response
- Invalid domain format — may return 400 or empty results
- Requested record type not found — returns empty array for that type
- DNS propagation delays — may return stale or missing records
- Network timeout reaching upstream DNS resolvers
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"A": [
"93.184.215.14"
],
"MX": [
{
"exchange": "mail.example.com",
"priority": 10
}
],
"domain": "example.com"
}
}Tags
x402
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