IP Check API — CUB SOFTWARE Developer

Base URL

Base https://cubsoftware.site

Authentication

No API key required — this endpoint is publicly accessible.

Please include a descriptive User-Agent header identifying your app.

IP Check

GET /api/validate/ip Validation

Valid, version, and whether it is private.

Parameter	Type	Required	Description
ip	string	required	The address to check, IPv4 or IPv6.

Example Response

{
  "global": true,
  "ip": "1.1.1.1",
  "loopback": false,
  "multicast": false,
  "private": false,
  "valid": true,
  "version": 4
}

curl 'https://cubsoftware.site/api/validate/ip?ip=1.1.1.1'
const res  = await fetch('https://cubsoftware.site/api/validate/ip?ip=1.1.1.1');
const data = await res.json();
console.log(data.valid, data.version);
const https = require('https');

https.get('https://cubsoftware.site/api/validate/ip?ip=1.1.1.1', (res) => {
    let body = '';
    res.on('data', chunk => body += chunk);
    res.on('end', () => {
        const data = JSON.parse(body);
        console.log(data.valid, data.version);
    });
});
import requests

res  = requests.get('https://cubsoftware.site/api/validate/ip?ip=1.1.1.1')
data = res.json()
print(data['valid'], data['version'])
<?php
$res  = file_get_contents('https://cubsoftware.site/api/validate/ip?ip=1.1.1.1');
$data = json_decode($res, true);
echo $data['valid'], $data['version'];
package main

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

func main() {
    resp, _ := http.Get("https://cubsoftware.site/api/validate/ip?ip=1.1.1.1")
    defer resp.Body.Close()
    body, _ := io.ReadAll(resp.Body)
    var data map[string]any
    json.Unmarshal(body, &data)
    fmt.Println(data["valid"], data["version"])
}
using System.Net.Http.Json;

var client = new HttpClient();
var data   = await client.GetFromJsonAsync<Dictionary<string, object>>(
    "https://cubsoftware.site/api/validate/ip?ip=1.1.1.1"
);
Console.WriteLine(data["valid"]);
Console.WriteLine(data["version"]);
import java.net.URI;
import java.net.http.*;
import java.util.Map;
import com.fasterxml.jackson.databind.ObjectMapper;

var client = HttpClient.newHttpClient();
var req    = HttpRequest.newBuilder()
    .uri(URI.create("https://cubsoftware.site/api/validate/ip?ip=1.1.1.1"))
    .build();
var res  = client.send(req, HttpResponse.BodyHandlers.ofString());
var data = new ObjectMapper().readValue(res.body(), Map.class);
System.out.println(data.get("valid"));
System.out.println(data.get("version"));
require 'net/http'
require 'json'

uri  = URI('https://cubsoftware.site/api/validate/ip?ip=1.1.1.1')
data = JSON.parse(Net::HTTP.get(uri))
puts data['valid'], data['version']

Try It

Live request

Edit the path and send it. This runs against the real endpoint.

Press Send to run the request.

Rate Limits

10 requests per second per IP, across every endpoint.

Going over returns 429 — back off and retry.

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