An application server may initialize network services asynchronously and/or on-demand. Some services may be initialized during startup of the application server, while initialization of other services may be delayed. The application server may report that the services are initialized before they are actually initialized and may be configured to receive client requests for non-initialized services. When a client request is received, the application server may delay processing the client request either until the requested service is initialized or until all services are initialized. The application server may hold a received client request in a network layer until the requested service, and possibly other services on which the requested service depends, is initialized able to process the client request. Delaying initialization of some application server network services may result in a faster startup or restart time for the application server.