Dandelion Sentiment Analysis

The Sentiment Analysis API tells whether the expressed opinion in short texts is positive, negative, or neutral. Given a short sentence (currently only English and Italian are supported), it returns a label representing the identified sentiment, along with a numeric score ranging from strongly positive (1.0) to extremely negative (-1.0). It's one of the available semantic text APIs published on dandelion.eu, called Dandelion API.

Spotify Echo Nest Remix

The Spotify Echo Nest Remix API works as an internet synthetizer, transforming music and videos to Python or JavaScript code. In specific, the API manipulates audio files connected with the Echo Next Analyze API. This work aims to create projects from music, like the Remix of a Pianist Cat or the DogStep, that transforms any song like White Stripes' Seven Nation Army into musical barks. See additional music examples with Tetris Attack, Skrillex' Bangarang, and the Infinite Jukebox in this link: http://echonest.github.io/remix/examples.html

UberStations Music and Radio Search

The UberStations Music and Radio Search API builds search engines for internet radio. The RESTful API accepts JSON or XML data types and requires a partner token for API authentication. Tokens are available after registering for a free account with DAR.fm. Use the Uberstations API to search over 100,000 internet radio stations by current song, station name, geographic location, call sign, and more. Uberstations Music and Radio Search API can also build recommendation engines by artist or song.


APIBond is an API management platform for orchestrating, analyzing and updating your app. APIBond analyzes API metrics, filters redundant fields, facilitates customizing response content, monitors API security and performance, and can aggregate and merge multiple APIs. Use APIBond to build your API or integrate your current API with it's management platform. See the detailed documentation for more examples of how to use APIBond and instructions on getting started.


Vatlayer is a simple REST-based JSON API offering instant EU VAT (Value Added Tax) number validation, VAT compliant price calculations and VAT rates for all 28 current member states of the European Union. Its system is secured by HTTPS and focused on ease of use & integration, delivering all VAT data in lightweight and highly portable JSON format.


Solve is a CRM (Customer Relationship Management) service that allows users to customize their fields, category tags, and activity templates in order to capture the specific information they want from the people they interact with. The Solve API allows developers to programmatically add, edit, delete, and generate data reports from their Solve accounts. Every item in Solve has its own URI and can be manipulated in isolation.


dotCMS is a content management service that provides search, geolocation, recommendations, and customization. The RESTful API offers web services to the content store and to widgets in REST, JSON, and JSONP formats. What characteristics seem to be unique about dotCMS? Responsive design, multi-server, high scalability, push publishing, visual workflow, and a comprehensive package of open source APIs.


WaniKani is a kanji (Japanese writing) learning application. WaniKani API allows developers to use a public API key to get a users' progress on the website wanikani.com as well as limited user information, such as username and profile description.


The Synclist API provides website developers with access to a database of job descriptions and industries for use with registration forms and other tools. This database includes 37,600 job titles from 1,800 industries. End users can partially type their industry or job title into a form field, and the auto populate service will then provide suggestions for filling the field.

GeoBytes IP Address Location Tool

The GeoBytes IP Address Location Tool API allows developers to determine the geographic location of a person's IP Address. An example is shown on the API Home Page using the visitor's IP Address. Visitors can also enter a different IP Address to see the results for it instead. A code sample is provided in PHP.