Free IP Lookup API

curl checkip.me
curl checkip.me/country
curl checkip.me/8.8.8.8

# Use curl.exe, because "curl" is an alias of Invoke-WebRequest in PowerShell
curl.exe checkip.me

# Or read the JSON directly
$info = Invoke-RestMethod https://checkip.me/8.8.8.8
$info.country

# Check which IP a proxy gives you, and whether it is detected as a proxy

# HTTP / HTTPS proxy
curl -x http://user:pass@host:port checkip.me
curl -x http://user:pass@host:port checkip.me/json

# SOCKS4 (no password support in the protocol)
curl -x socks4://host:port checkip.me

# SOCKS5 (socks5h: DNS is resolved by the proxy)
curl -x socks5h://user:pass@host:port checkip.me

# pip install "requests[socks]"
import requests

proxy = "socks5h://user:pass@host:port"   # or http://..., socks4://...
proxies = {"http": proxy, "https": proxy}

info = requests.get("https://checkip.me/json", proxies=proxies, timeout=10).json()
print(info["ip"], info["country"], info["proxy"])

import requests

# Your IP
ip = requests.get("https://checkip.me").text.strip()

# One field
country = requests.get("https://checkip.me/8.8.8.8/country").text.strip()

# All fields
info = requests.get("https://checkip.me/8.8.8.8").json()
print(info["country"], info["isp"], info["vpn"])

# Full API: nested data, stored under the IP address
ip = "8.8.8.8"
data = requests.get(f"https://api.checkip.me/{ip}").json()
print(data[ip]["detections"]["risk"], data[ip]["operator"])

// Works in the browser (CORS enabled) and Node.js 18+
const res = await fetch("https://checkip.me/json");
const info = await res.json();

console.log(info.ip, info.country, info.vpn);

// Full API: nested data, stored under the IP address
const ip = "8.8.8.8";
const data = await (await fetch(`https://api.checkip.me/${ip}`)).json();
console.log(data[ip].detections.risk, data[ip].operator);

<?php
// Your IP
$ip = trim(file_get_contents('https://checkip.me/ip'));

// One field
$country = trim(file_get_contents('https://checkip.me/8.8.8.8/country'));

// All fields
$info = json_decode(file_get_contents('https://checkip.me/8.8.8.8'), true);
echo $info['country'] . ' - ' . $info['isp'];