The Harpseal API allows developers to create a cluster monitoring system for their Linux systems. The API can also be used to graph and analyze collected data. Harpseal was created to collect system resources, usage, and more via extendable plugins. It is provided as a light-weight alternative to munin, mrtg, etc. Harpseal is a 'A next generation linux monitoring tool based on plugins.' and is easy to install and free to use, even for commercial purposes.

Gracenote Data Delivery

The Gracenote Data Delivery API is a read only application to access TV and movie schedules with respective show information. Protocols available include HTTP, JSON, and REST. JSONP support is included. To make calls, developers can authenticate with API Key. Gracenote (formerly CDDB) maintains and licenses data about audio CDs, digital file identifications, and song lyrics,

Diffbot Video Extraction

With the Diffbot Video Extraction API, developers can extract information from a video, including images, URL, and embed code. By requesting fields, timeout, and callback in HTTP GET, developers will receive author, date, duration, viewCount, and humanLanguage information. Learn how to create a custom API in this link https://www.youtube.com/watch?v=VNv3EZEUgok

Deal Hunt Daily Deals

The Daily Deals API offers a retail platform to integrate in existing applications. It delivers product deals and coupons from stores such as Amazon and Ebay. This RESTful API responds in XML or JSON format, and it uses the API key authentication type. The Daily Deals API is still in beta development.


The DataMethods API saves users time during research, analysis, and application development by delivering market intelligence data through a single site. The market intelligence data by industry supports sales, operations, and supply chain planning functions by providing information in a geographical context. Each data set returns a comparison across three geographical levels - local, state/region, and country.

Uploadcare Content Delivery Network

The Uploadcare Content Delivery Network API aims to deliver files quickly. Developers can compare and contrast samples on the official site with images downloading, cropping, scaling, stretching, overlaying, rotating, blurring, and inverting. Formats include JSON and JSONP. API Key is available at the web site. Uploadcare provides an API and HTML5 widget to manage files in cloud storage with a smart and fast CDN.


The BetterDoctor API offers access to a database of doctors and insurance networks. The API uses HTTP methods with JSON or JSONP datatypes and requires an API Key for authentication. Use BetterDoctor to search for a doctor by name, location, or specialty. BetterDoctor also retrieves doctor descriptions, a list of known conditions, insurance providers, ratings, photos, contact information and specialties. See the API documentation for code samples and instructions on registering for an API Key.


Cognalys is a multiplatform mobile number verification service. The API available in JSON, JSONP, and XML formats helps developers to integrate two factor authentication instead of the traditional SMS OTP technology. Cognalys aims to offer a less expensive authentication method for users in more than 195 countries.

KonaKart Enterprise eCommerce

The KonaKart Enterprise eCommerce API allows developers to programmatically control KonaKart's ecommerce solution and merge it with their existing websites. KonaKart provides online retailers with a shopping cart, customer registration, customer data capture, a promotion sub-system, content management support, and much more. This API will remain backwards compatible as new versions of KonaKart are released.

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.