Bulk WHOIS API

apispot · Developer Tools

Developer Tools No Auth Free & Open developer_tools

Domain API (WHOIS, Check, Batch)

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET queryDb

Query domain database

https://api.apis.guru/v2/specs/apispot.io/whois/1.0/db?query=test

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/apispot.io/whois/1.0/db?query=test"

import requests
params = {
    "query": "test"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/apispot.io/whois/1.0/db",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/apispot.io/whois/1.0/db');
url.searchParams.set('query', 'test');

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	baseURL, _ := url.Parse("https://api.apis.guru/v2/specs/apispot.io/whois/1.0/db")
	q := baseURL.Query()
	q.Set("query", "test")
	baseURL.RawQuery = q.Encode()
	targetURL := baseURL.String()
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/apispot.io/whois/1.0/db")
uri.query = URI.encode_www_form({
  "query" => "test"
})

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/apispot.io/whois/1.0/db?" . http_build_query([
    "query" => "test"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET getBatches

Get your batches

https://api.apis.guru/v2/specs/apispot.io/whois/1.0/batch

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/apispot.io/whois/1.0/batch"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/apispot.io/whois/1.0/batch",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/apispot.io/whois/1.0/batch';

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	targetURL := "https://api.apis.guru/v2/specs/apispot.io/whois/1.0/batch"
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/apispot.io/whois/1.0/batch")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/apispot.io/whois/1.0/batch";
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET whois

WHOIS query for a domain

https://api.apis.guru/v2/specs/apispot.io/whois/1.0/domains/{domain}/whois?format=raw

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/apispot.io/whois/1.0/domains/{domain}/whois?format=raw"

import requests
params = {
    "format": "raw"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/apispot.io/whois/1.0/domains/{domain}/whois",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/apispot.io/whois/1.0/domains/{domain}/whois');
url.searchParams.set('format', 'raw');

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	baseURL, _ := url.Parse("https://api.apis.guru/v2/specs/apispot.io/whois/1.0/domains/{domain}/whois")
	q := baseURL.Query()
	q.Set("format", "raw")
	baseURL.RawQuery = q.Encode()
	targetURL := baseURL.String()
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/apispot.io/whois/1.0/domains/{domain}/whois")
uri.query = URI.encode_www_form({
  "format" => "raw"
})

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/apispot.io/whois/1.0/domains/{domain}/whois?" . http_build_query([
    "format" => "raw"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

Postman Setup Guide

Get Postman ↗

See official documentation for authentication and setup.

What can you build with Bulk WHOIS API?

Bulk WHOIS API is a Developer Tools API. Developers commonly use developer tools APIs for:

automating code review and quality checks
integrating CI/CD pipelines and build systems
managing feature flags and A/B tests
monitoring errors and application performance
generating and validating test data

No authentication required. This API is open — no signup or key needed. Ideal for quick prototypes and public-facing features. Bulk WHOIS API is free to use, making it a low-risk choice to experiment with.

New to APIs? Read our beginner's guide

Open documentation ↗