DuckDuckGo Zero-click Info includes topic summaries, categories, disambiguation, official sites, !bang redirects, definitions and more. You can use this API for many things, e.g. define people, places, things, words and concepts; provides direct links to other services (via !bang syntax); list related topics; and gives official sites when available.
Topics Extraction tags locations, people, companies, dates and many other elements appearing in a text written in Spanish, English, French, Italian, Portuguese or Catalan. This detection process is carried out by combining a number of complex natural language processing techniques that allow to obtain morphological, syntactic and semantic analyses of a text and use them to identify different types of significant elements.
Entity extraction == Named Entity Recognition == This API annotates text and returns identified entities, such as people, locations, dates, products, etc The text also gets classified into predefined or custom categories, such as politics, entertainment->music, technology etc. We are using a huge database of entities (addresses, celebrities, etc) and combining it with pattern recognition approaches. Please contact us if you need custom entities or topics.