Buttercoin is a bitcoin and cryptocurrency buying, selling, and trading platform. The Buttercoin API allows developers to connect their applications to the Buttercoin Marketplace to deposit and withdraw funds from accounts and execute trades without going through the web interface.


TimezDB is a time zone database for many locations/cities around the globe. The TimezDB API allows developers to access and integrate the functionality of TimezDB with other applications. Some example API methods include retrieving times, retrieving locations, and retrieving timezone information.

Sunrise and Sunset Times

Sunrise-Sunset is a free online service that provides users with information on day length, twilight, sunrise times, and sunset times for any date and location in the world. The free Sunrise Sunset Times API allows users to retrieve exact sunrise and sunset times for a given latitude and longitude. Users may also specify a date if they wish.


Userinfo.io is a service that retrieves the IP and geolocation info on users. The website offers an embeddable JavaScript library, as well as the functionally to call the API directly from within a browser. Calls to the API will return JSONP responses and can retrieve the latitude and longitude, country, city, and IP address of a user. The data returned comes with a ~99.9% accuracy for determining continent and country of origin, and a ~50% accuracy when determining the exact positioning and cities within most developed countries. The service and JavaScript library are free to integrate into existing web applications. Userinfo.io can also be used as an Asynchronous Module Definition (AMD). Userinfo.io is developed and maintained by Vincent Durmont.

Mobile Reporter Content Import/Export

Mobile Reporter is a service that allows users to report on events by posting images and videos from their mobile devices. It also allows users to read the latest news from a variety of popular feeds. Mobile Reporter provides the Content Import/Export API, which enables registered users to import or export content to or from other platforms using JSON or XML.


ContentMine is a content mining service designed primarily to work with science articles. It uses processors such as crawlers, scrapers, and visitors to mine data. Metadata from crawlers is stored in the ContentMine catalog in bibJSON format. Developers can call processors and access metadata programmatically using the ContentMine API. The API also has methods for querying which catalog records have been processed and by which processors. There are also methods for querying facts extracted by visitors.


WeatherSTEM is a service that is designed to help educators create STEM lessons and activities that incorporate real-world weather. Users can add WeatherSTEM's current and historical data to their websites and applications via API. Code examples are provided in ActionScript 3, Curl, C#, Java, Ruby, and other common languages.


The Pressmon REST API queries an inputted word and returns it's different usages throughout varying languages. This is done by sourcing from press and literature in different languages which contain given words or word combinations, allowing one to retrieve examples of use of a word in different contexts. This tool could be useful for online dictionaries and other linguistic resources. Current available language categories for the API include: English, Spanish, Italian, German, Russian, French.

Fun Translations

The Fun Translations API accepts a body of text and translates it into fun themed responses. The simple JSON API can be accessed to programmatically convert text using the Yoda speak generator, Pirate talk generator, Pig Latin Converter, Jive talk and many more. Each API functionality offers a description of the grammatical process that creates the output, such as restructuring key words to automatically create Yoda structured sentences. Fun Translations offers a web interface where users can test out the service. For bulk requests and increased API usage, Fun Translations offers monthly payment plans.

Sezion Video

Sezion is a solution that automatically generates personalized videos using various types of content from a social media feed, databases, tweets, a website, and more. The Sezion video API automates this process by accepting these content inputs as well as additional customizable details all through a JSON-RPC protocol over HTTPS, enabling the programmatic creation, management, and distribution of these personalized videos. Sezion offers free services as well as a sandbox to test API functionality.