The IP Geolocation API returns location data such as country, city, latitude, longitude, timezone, security data for IPv4 and IPv6 addresses in JSON formats.
The Cellid Geolocation API returns a location and accuracy radius based on information about cell towers and WiFi nodes that the mobile client can detect.
The Time Zone API provides time offset data for locations on the surface of the earth. You request the time zone information for a specific latitude/longitude pair and date.
A simple REST API which covers most of the world’s exchange rates and currancy conversion, it updates every few minutes and easy to use.
The free global air quality index (AQI) api service
Access current weather data for any location including over 200,000 cities
Juhe Hosted WHOIS Web Service provides the registration details, also known as the WHOIS Record, of a domain name, an IP address or an email address.
Track multiple packages of worldwide 680+couriers all in one place with tracking API for developers.