Abstract: Example methods, systems, and techniques of managing a succession of deployments of an application programming interface (API) server configuration are provided. An example method includes defining a first configuration of the API server. The first configuration includes a deployment package that encodes at least policy, listener and external connection components of the defined first configuration together with environment settings particular to operation of the API server in a development environment deployment thereof. The method also includes preparing a second configuration of the API server. The second configuration includes (i) a policy package derived from the first configuration and (ii) a separable environment package particular to a testing environment deployment of the API server. The method further includes preparing a third configuration of the API server.