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WELCOME TO ENCYCLOPÆDIA BRITANNICA'S DEVELOPER CENTER!

The Encyclopædia Britannica API gives developers access to a comprehensive resource of Encyclopædia Britannica content as well as specialized Portuguese and thematic subject products. Make your applications better by integrating our authoritative detailed information on all the essential topics. Our robust API empowers developers to enhance games, content-driven applications, existing and emerging digital platforms and create educational history learning and other fact-based related applications for the digital environment. We look forward to seeing all of the new, innovative products powered by Encyclopædia Britannica's trustworthy information on subjects such as science, history, the arts, and much more.

Free API

The Encyclopædia Britannica API is free as long as it is for non-commercial use, usage does not exceed 1000 queries per day per API key, and use is limited to two reference APIs.

Commercial Use

If your app is for commercial use (either monetized via ads or a paid fee), please contact us directly so we can approve use and develop business terms on a case-by-case basis.

Get Started Using Our API

  • Visit our Products pages and decide which reference APIs you would like to use.
  • Register your application with us. You will request your API Key(s) when you register.
  • Once registered, you will receive a verification e-mail. Click on the link in the verification e-mail to complete your registration.
  • Sign in to encyclopaediaapi.com and visit the My Keys page to retrieve your API Key(s).
  • You may now begin using our API in your app!
  • You will need to call our API using the "API Request URL" provided on each reference's Product page. This URL must include your API Key, which is specific to your application.
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