How to hit the ipwho.is API

ipwho.is returns the location, ISP, time zone, and currency for an IP address. Leave the IP off to look up the caller's own.

Authentication

None for non-commercial use, with a monthly cap.

Full reference: https://ipwhois.io/documentation

Look up an IP

curl https://ipwho.is/8.8.8.8
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Example response (trimmed) 
{
  "ip": "8.8.8.8",
  "success": true,
  "type": "IPv4",
  "continent": "North America",
  "continent_code": "NA",
  "country": "United States",
  "country_code": "US",
  "region": "California",
  "region_code": "CA",
  "city": "San Jose",
  "latitude": 37.3393939,
  "longitude": -121.8949553,
  "is_eu": false,
  "postal": "95025",
  "calling_code": "1"
}

Only some fields

curl "https://ipwho.is/1.1.1.1?fields=country,city,connection"
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Example response (trimmed) 
{
  "country": "Australia",
  "city": "Brisbane",
  "connection": {
    "asn": 13335,
    "org": "Apnic Research And Development",
    "isp": "Cloudflare, Inc.",
    "domain": "cloudflare.com"
  }
}