What Is My IP Address?

API Usage

Get your IP address and User-Agent as JSON. Returns ip, ipv6, and user-agent. Complete code examples for cURL, Ruby, Python, PHP, Java, Node.js, Go, and .NET:

{"ip":"66.219.209.246","ipv6":"","user-agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"}

curl https://whatismyipaddress.monster/api

using System;
using System.Net.Http;
using System.Text.Json;
using System.Threading.Tasks;

class Program
{
    static async Task Main()
    {
        using var client = new HttpClient();
        var url = "https://whatismyipaddress.monster/api";
        var json = await client.GetStringAsync(url);
        var doc = JsonDocument.Parse(json);
        var root = doc.RootElement;
        var ip = root.GetProperty("ip").GetString();
        var ipv6 = root.GetProperty("ipv6").GetString();
        var userAgent = root.GetProperty("user-agent").GetString();
        Console.WriteLine("IPv4: " + ip + ", IPv6: " + ipv6 + ", User-Agent: " + userAgent);
    }
}

package main

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

func main() {
    resp, err := http.Get("https://whatismyipaddress.monster/api")
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()
    var data struct {
        IP        string `json:"ip"`
        IPv6      string `json:"ipv6"`
        UserAgent string `json:"user-agent"`
    }
    json.NewDecoder(resp.Body).Decode(&data)
    fmt.Printf("IPv4: %s, IPv6: %s, User-Agent: %s\n", data.IP, data.IPv6, data.UserAgent)
}

import java.net.URI;
import java.net.http.*;

public class GetIP {
    public static void main(String[] args) throws Exception {
        var client = HttpClient.newHttpClient();
        var uri = URI.create("https://whatismyipaddress.monster/api");
        var request = HttpRequest.newBuilder().uri(uri).GET().build();
        var response = client.send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.body());
    }
}

const https = require('https');

https.get('https://whatismyipaddress.monster/api', (res) => {
  let data = '';
  res.on('data', (chunk) => data += chunk);
  res.on('end', () => {
    const { ip, ipv6, "user-agent": userAgent } = JSON.parse(data);
    console.log('IPv4:', ip, 'IPv6:', ipv6, 'User-Agent:', userAgent);
  });
});

<?php
$data = json_decode(file_get_contents('https://whatismyipaddress.monster/api'), true);
echo "IPv4: {$data['ip']}, IPv6: {$data['ipv6']}, User-Agent: {$data['user-agent']}\n";

import urllib.request
import json

with urllib.request.urlopen('https://whatismyipaddress.monster/api') as response:
    data = json.loads(response.read())
print(f"IPv4: {data['ip']}, IPv6: {data['ipv6']}, User-Agent: {data['user-agent']}")

require 'net/http'
require 'json'

res = Net::HTTP.get_response(URI('https://whatismyipaddress.monster/api'))
data = JSON.parse(res.body)
puts "IPv4: #{data['ip']}, IPv6: #{data['ipv6']}, User-Agent: #{data['user-agent']}"