One thing I want to do with IP Sidekick is to include additional information about the location it resolves to. For now, the result includes the national public holiday of the country it resolves to. This should work for the next few hours of Aug 17:

  $ curl https://ipsidekick.com/5.189.201.130
  {
     "countryCode" : "ID",
     "country" : "Indonesia",
     "holiday" : "Independence Day",
     "timeZoneName" : "Asia/Jakarta",
     "ip" : "5.189.201.130",
     "gmtOffset" : "GMT+7:00"
  }

I'm planning to add more data types. Welcome any feedback.