To sign up for an API Key, you must register for an account. Once registered, you will be sent a confirmation e-mail. After your e-mail is verified, you will have access to two API keys which you can use to start building your app
You are allowed immediate access to two API Keys after account registration. If you require three or more API Keys, you must contact us to request more.
If your app is considered "commercial" - supported by advertising, or makes money selling a product - you will be required to pay Encyclopædia Britannica a licensing fee to use our API with your application. If your application is considered "non-commercial", you are free to use the API. However, if your application uses more than 1,000 queries per day, you will be required to pay a licensing fee.
Please contact us if your application is considered commercial or if your application requires more than 1,000 queries per day
You are allowed 1,000 queries per API Key per day. If your application requires access to more than 1,000 queries per day, you will be required to pay a licensing fee.
Encyclopædia Britannica content displayed by you must be kept up to date. If you download or otherwise cache Encyclopædia Britannica content from an API, you only may display, post, or otherwise share such downloaded or cached content for a period of 30 days from the date of your initial download.
All applications using Encyclopædia Britannica APIs must feature the Encyclopædia Britannica logo. Please refer to our Brand Guidelines for directions on the use of our logo, brand name, and product names.
Our API provides encyclopedia metadata in JSON format and encyclopedia content in XML format.
Please refer to the following sections of the documentation for details on processing and presenting image, audio, and video files: