~$ curl http://api.db-ip.com/v2/free/193.4.108.72
{
    "ipAddress": "193.4.108.72",
	"continentCode": "EU",
	"continentName": "Europe",
	"countryCode": "IS",
	"countryName": "Iceland",
	"stateProv": "Capital Region",
	"city": "Reykjavik (H\u00e1aleiti)",
}

~$ curl http://api.db-ip.com/v2/free/193.4.108.72/countryName
Iceland

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.