A very lightweight Geolocation REST API using Google App Engine. It relies on the Google App Engine generated headers to collect IP information. See example at: http://gold-cycling-94509.appspot.com/
curl http://gold-cycling-94509.appspot.com/
Returns JSON with IP address location information.
{
"Country": "CA",
"Region": "on",
"City": "kingston",
"LatLong": [
"XX.xxxxx,-XX.xxxxx"
]
}
MIT