The present disclosure discloses a method performed at a computer acting as a third-party system for requesting for a usage permission. The third-party system receives download information sent by means of a page of a first application, the download information at least including a download identifier, and the download identifier being used for indicating a first device identifier of a first device running the first application, a first account logging into the first application, and a second application identifier of a downloaded second application. After authenticating the download information, the third-party system requests a server of the first application to configure the usage permission for the first account in response to an authentication result and return such configuration to the first application running at the first device.