A gateway is described that performs processing of communications by employing a series of service interceptors. The interceptors can be registered in the gateway by using a configuration file. Once registered, the interceptors can be invoked in a particular sequence for the requests coming into the gateway. Each interceptor can deny the request, allow the request, abstain from processing the request and pass the request to the next interceptor specified by the sequence. The interceptors can also modify the various data associated with the request. There can be dependencies between multiple interceptors. In addition, new custom interceptors can be created and registered at the gateway to process incoming requests.