Natural language processing for advanced text analysis. This service is deprecated as of April 7, 2017. See its documentation for more information.

General Availability

AlchemyLanguage is a collection of natural language processing APIs that help you understand sentiment, keywords, entities, high-level concepts and more. You can use AlchemyLanguage to understand how your social media followers feel about your products, to automatically classify the contents of a webpage, or to see what topics are trending in the news. AlchemyLanguage provides many pre-trained features, but you can also create a custom model using Watson Knowledge Studio.

Common use cases for AlchemyLanguage include:

  • -Understand the causes behind negative and positive reviews
  • -Track important industry events such as acquisitions and new competitors
  • -Tailor recommended content and advertisements to the content on the page

How it works

Helping Brands Understand Customers With Social Media Intelligence - Pulsar Social Media Monitoring

Pulsar is reinventing social data monitoring with its powerful tools that give brands valuable intelligence enabling effective decision-making. Through integration of several natural language processing APIs, Pulsar rapidly releases innovations that help customers go beyond basic keyword tracking to map brand audiences, observe how content travels and manage team communication.

Developer tools

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Use In Bluemix


Ready to get down to the details? Full documentation detailing how to get started using this service in Bluemix is available for each Watson service.

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Localized versions of Watson services (Natural Language Classifier, Retrieve and Rank, Speech to Text, Text to Speech) are available in the following places.

Japanese - SoftBank