Pin Drop is a web and mobile application that allows users to "drop pins" on maps of places they want to remember. Pins can be private to the user only or users can share some of their pins with others. Pins can be organized by categories and tags, and Pin Drop also allows for importing data from other geolocation applications, such as Foursquare.
The Pin Drop API allows developers to access and integrate the functionality and data of Pin Drop with other applications and to create new applications. Some example API methods include managing user information, managing and retrieving pins, and adding images to pins.