The Extension Framework page in the Platform section of the Admin menu lets you enable or disable the Looker extension framework.
When enabled, the Extension Framework option allows developers to build and run Looker-hosted applications as well as install and run extensions from the Looker Marketplace, such as the API Explorer and the Data Dictionary. This feature is enabled by default.
When this feature is disabled, any extensions that have been installed are hidden and unavailable to users.
Developing on the Looker extension framework is free to use while in beta and will remain free for developers indefinitely. Terms and support will be finalized and introduced when this feature reaches general availability.
Pricing, terms, and other details for Marketplace content and extensions such as the API Explorer and Data Dictionary are listed within the relevant store page. Before users can install and use Marketplace extensions, a Looker admin must enable the Marketplace feature.