~$ curl http://api.db-ip.com/v2/free/141.37.104.239
{
    "ipAddress": "141.37.104.239",
	"continentCode": "EU",
	"continentName": "Europe",
	"countryCode": "DE",
	"countryName": "Germany",
	"stateProv": "Baden-W\u00fcrttemberg",
	"city": "Konstanz (Altstadt)",
}

~$ curl http://api.db-ip.com/v2/free/141.37.104.239/countryName
Germany

The free API is limited to 1,000 daily requests and returns city level location data only, if you require larger query volumes or more information such as latitude/longitude, ISP details or threat level assessment, please see our commercial offers.