Inside a course create a forum with a couple of discussions, create a couple of posts in each discussion. Enable the tracking option for that forum. Ensure that in your user settings/preference you don't have forum tracking disabled In the database modify the "modified" field of two the posts created, you need to add a timestamp there of two/three days ago Enable "Mobile services": Plugins ► Web Services ► External services Create a Token: Click on Site administration ► Plugins ► Web services ► Manage tokens Click add, select user and the Mobile app service Next, you can do a CURL REST call simulating a WS client: You need to replace the discussionid with the discussions where you added the posts. (You will have to do two curl executions, one for each discussion) You also need to replace the wstoken and the URL of your moodle instance curl 'https://moodle.org/webservice/rest/server.php?moodlewsrestformat=json' -H 'pragma: no-cache' -H 'origin: file://' -H 'accept-encoding: gzip,deflate,sdch' -H 'accept-language: es,en;q=0.8,de-DE;q=0.6,de;q=0.4' -H 'user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1798.0 Safari/537.36' -H 'content-type: application/x-www-form-urlencoded; charset=UTF-8' -H 'accept: application/json, text/javascript, */*; q=0.01' -H 'cache-control: no-cache' -H 'cookie: __cfduid=dd8421454a753dfc46c3c88cd4fdc24cb1393321120126; __utma=43082041.2075192827.1405091082.1405091082.1405091082.1; __utmz=43082041.1405091082.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); MoodleSession=kpc0nsnkqc76iucppm5uok4va4' --data 'discussionid=273771&wsfunction=mod_forum_get_forum_discussion_posts&wstoken=19aa5a7a60576f82db48bf21e5cb0c96' --compressed Confirm that: The result of that curl call is a json string containing the posts in the discussion, you can use jsonlint.com for validating and formatting the json string