API Documentation

Simple, fast IP address lookup API

Endpoints

$curl ip.cd

Returns current IP address

$curl ip.cd/json

Returns full JSON information

$curl ip.cd/text

Returns comma-separated text format

$curl 4.ip.cd

IPv4 address only

$curl 6.ip.cd

IPv6 address only

JSON Response Example

{
  "success": true,
  "data": {
    "ip": "203.0.113.42",
    "version": 4,
    "country": "US",
    "countryName": "United States",
    "continent": "NA",
    "region": "California",
    "regionCode": "CA",
    "city": "Los Angeles",
    "postalCode": "90001",
    "latitude": "34.0522",
    "longitude": "-118.2437",
    "timezone": "America/Los_Angeles",
    "isEUCountry": false,
    "asn": 12345,
    "isp": "Example ISP",
    "colo": "LAX",
    "httpProtocol": "HTTP/2",
    "tlsVersion": "TLSv1.3"
  }
}

JSONP Support

<script src="https://ip.cd/json?callback=handleIP"></script>