Disclosed are examples of searching for content associated with multiple applications. In various examples, a first application can obtain a search query and maintain a list of applications available to provide content. The first application can send a request to a second application identified in the list, the request including a key that indicates the first application is authorized to request the second application to search for content. The first application can obtain a search result from the second application based on the request and present the search result in a user interface in the first application.