The Free Geolocation API returns IP information with no registration required. Formats available are JSON, XML and CSV. The API returns region, country, IP, geocoordinates, city, timezone, zipcode, city and more. There is a rate limit of 15k requests per hour.
Eighteen APIs have been added to the ProgrammableWeb directory in categories including Cryptocurrency, Verification, and Data Mining. Highlights include several cryptocurrency APIs and updates for the BuddyPress API for its social networking platform. Here's a rundown of the latest additions.