Reliable API to determine an ip address's city and country [closed]
MaxMind has a lite version of their ip2country and ip2city databases:http://www.maxmind.com/app/geolitecity
http://www.maxmind.com/app/geolitecountry
If you don't mind hosting the database yourself, it's free.The paid services are more accurate.
They also provide web services for querying, but it is not free:http://www.maxmind.com/app/web_services#country
Consider using geoplugin, it provides the most information from a single line PHP code, but requires a connection to the geoplugin.com server for every request (and it is free).
Examples :
Json : http://www.geoplugin.net/json.gp?ip=74.125.236.174
{geoplugin_request: "74.125.236.174",geoplugin_status: 200,geoplugin_city: "Mountain View",geoplugin_region: "CA",geoplugin_areaCode: "650",geoplugin_dmaCode: "807",geoplugin_countryCode: "US",geoplugin_countryName: "United States",geoplugin_continentCode: "NA",geoplugin_latitude: "37.419201",geoplugin_longitude: "-122.057404",geoplugin_regionCode: "CA",geoplugin_regionName: "California",geoplugin_currencyCode: "USD",geoplugin_currencySymbol: "$",geoplugin_currencySymbol_UTF8: "$",geoplugin_currencyConverter: 1}Xml : http://www.geoplugin.net/xml.gp?ip=74.125.236.174
<geoPlugin><script/><geoplugin_request>74.125.236.174</geoplugin_request><geoplugin_status>200</geoplugin_status><geoplugin_city>Mountain View</geoplugin_city><geoplugin_region>CA</geoplugin_region><geoplugin_areaCode>650</geoplugin_areaCode><geoplugin_dmaCode>807</geoplugin_dmaCode><geoplugin_countryCode>US</geoplugin_countryCode><geoplugin_countryName>United States</geoplugin_countryName><geoplugin_continentCode>NA</geoplugin_continentCode><geoplugin_latitude>37.419201</geoplugin_latitude><geoplugin_longitude>-122.057404</geoplugin_longitude><geoplugin_regionCode>CA</geoplugin_regionCode><geoplugin_regionName>California</geoplugin_regionName><geoplugin_currencyCode>USD</geoplugin_currencyCode><geoplugin_currencySymbol>$</geoplugin_currencySymbol><geoplugin_currencySymbol_UTF8>$</geoplugin_currencySymbol_UTF8><geoplugin_currencyConverter>1</geoplugin_currencyConverter></geoPlugin>Other options