REST webservice protocol based on the standard core REST webservice, but with added support for JSON payloads and supports the local_alexakill plugin for Amazon Alexa skill integration with Moodle. Based on moodle-webservice_restjson plugin.
Simply place the filter files in ./webservice/restalexa
Should be enabled and setup in the standard way for webservices. See https://docs.moodle.org/29/en/Using_web_services for details.