Example implementations relate to exposing on-premise API endpoints in a cloud-based application platform. The application platform receives information regarding a forwarding proxy associated with a private network and information regarding a remote application programming interface (API) endpoint within the private network. A mapping between a resource model of the application platform to a tunnel established between a forwarding client of the application platform and the forwarding proxy is created by a controller of the application platform causing the forwarding client to instantiate a port corresponding to a forwarding route for the remote API endpoint based on the information regarding the forwarding proxy and the remote API endpoint. The remote API endpoint is locally represented within the application platform in a form of an instance of a service abstraction provided by the application platform.