Using the ipstack API output parameter, the API’s result format can be switched between JSON (default) and XML. Set the output parameter to json or xml, depending on your preference.

Requesting JSON Format

https://api.clarifyip.com/?key=YOUR_ACCESS_KEY&ip=185.245.87.169&output=json

Requesting XML Format

https://api.clarifyip.com/?key=YOUR_ACCESS_KEY&ip=185.245.87.169&output=xml

Response in XML Format:

<?xml version="1.0" encoding="utf-8"?>
<geo>
    <connection>
        <asn>9009</asn>
        <ip>185.245.87.169</ip>
        <isp>M247 Ltd</isp>
        <type>ipv4</type>
    </connection>

        <zip>90014</zip>	<city>
        <name>Los Angeles</name>
        <id>5368361</id>
    </city>
    <location>
        <metro_code>34.0494</metro_code>	<languages>
        <one>eng</one>
    </languages>
    <calling_code>
        <one>+1</one>
    </calling_code>

        <flag>//cdn.clarifyip.com/assets/flags/svg/us.svg</flag>
        <emoji>??</emoji>
        <latitude>34.0494</latitude>
        <longitude>-118.2641</longitude>
    </location>
    <country>
        <code_3>USA</code_3>
        <name>United States</name>
        <id>6252001</id>
        <code>US</code>
    </country>
    <region>
        <code>CA</code>
        <name>California</name>
    </region>
    <continent>
        <name>North America</name>
        <id>6255149</id>
        <code>NA</code>
    </continent>
    <time_zone>
        <id>America/Los_Angeles</id>
    </time_zone>
</geo>