The CallDirek REST API allows developers to access and integrate the functionality of CallDirek with other applications. Some example API methods include managing accounts, retrieving balance information, topping off voice credits, and making calls. CallDirek is a web and mobile application for pinless international calling and making voice phone calls.


ShapeShift is a digital currency exchange app. The API uses GET and POST requests over HTTPS with JSON. Use ShapeShift to complete a transaction, request an email receipt, see a list of recent transactions, or return a list of supported coins.

MeaningCloud Coporate Reputation

Use MeaningCloud's Corporate Reputation API to analyze your organization's reputation. The API uses GET/POST requests in either JSON or XML, and supports both HTTP and HTTPS. Authentication is made via API Key, which is available after creating an account with MeaningCloud. Using semantic tagging and a model based on a set of reputational dimensions (like innovation or social responsibility) the API analyzes text to aggregate perceptions about a business. See the project documentation for more detailed information on how the Corporate Reputation model works. Developers should note that, at this time, the API only supports Spanish language text.

Typeform I/O

Typeform I/O is a forms a service business that allows to generate typeforms. With an API key and documentation, users can create surveys according to automation preferences. The aim is to facilitate surveys due to the aesthetic form design. Multiple resources include tutorials, sandbox, and an active typeform community with the #slackgroup.

US Zip Code, County, City, and State Boundaries API: A simple API that will allow you to integrate multiple GeoJson US boundaries results into your apps and systems.

SocialRadar LocationKit

The SocialRadar LocationKit REST API allows developers to access and integrate the functionality of SocialRadar LocationKit with other applications. Some example API methods include initializing locations services, retrieving single point locations, and streaming location data. SocialRadar's LocationKit is a location manager for applications and devices.

The REST API allows developers to access and integrate the functionality of with other applications. Some example API methods include retrieving current Bitcoin market condition information, retrieving transaction details, and withdrawing Bitcoins. is a Bitcoin and cryptocurrency online trading portal.

Twinword Text Analysis Bundle

Twinword Text Analysis Bundle API processes text analysis. This API offers various natural language processing features such as lemmatizer, sentiment analysis, and topic tagging. All services are included in one plan. Users could benefit from this NLP tool to analyze and understand human sentences.

Twinword Lemmatizer

Twinword Lemmatizer API returns the root of a word or roots of a string of words. For example, "dogs" to "dog" and "abilities" to "ability." If users sign up now to consume this API, the price is free and the time to use is unlimited.

Twinword Sentiment Analysis

Twinword Sentiment Analysis' free API returns sentiment analysis results with score for the given text. Because it allows to find the tone of a user comment or post, users can find positive and negative comments in social media platforms.