Free DNS Lookup API Comparison 2026

const res = await fetch('https://dns.google/resolve?name=example.com&type=A');
const data = await res.json();
console.log(data.Answer); // [{name, type, TTL, data}]

import requests
r = requests.get('https://dns.google/resolve', params={'name': 'example.com', 'type': 'A'})
print(r.json()['Answer'])

const res = await fetch('https://1.1.1.1/dns-query?name=example.com&type=MX', {
  headers: { accept: 'application/dns-json' }
});
const data = await res.json();
console.log(data.Answer);

import requests
r = requests.get('https://1.1.1.1/dns-query',
  params={'name': 'example.com', 'type': 'MX'},
  headers={'accept': 'application/dns-json'})
print(r.json()['Answer'])

const res = await fetch('https://agent-gateway-kappa.vercel.app/v1/agent-dns/all/example.com', {
  headers: { 'x-api-key': 'YOUR_KEY' }
});
const data = await res.json();
// Returns: A, AAAA, MX, CNAME, TXT, NS, SOA — all at once
console.log(data.records);

import requests
r = requests.get('https://agent-gateway-kappa.vercel.app/v1/agent-dns/all/example.com',
  headers={'x-api-key': 'YOUR_KEY'})
data = r.json()
print(data['records'])  # All record types in one response

package main

import (
    "fmt"
    "io"
    "net/http"
)

func main() {
    req, _ := http.NewRequest("GET",
        "https://agent-gateway-kappa.vercel.app/v1/agent-dns/all/example.com", nil)
    req.Header.Set("x-api-key", "YOUR_KEY")
    resp, _ := http.DefaultClient.Do(req)
    defer resp.Body.Close()
    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}