As an admin, enable web services": Site administration ► Advanced features ► Enable web services Create one course and enrol two users, one as student (s1) and the other one as teacher (t1) Enable the REST web service protocol (Site administration  ► Server  ► Web services  ► Manage protocols) Make sure that the users have the appropriate capabilities to use the rest protocol ( webservice/rest:use) Enable the external service 'Moodle mobile web service' (Site administration  ► Server  ► Web services  ► External services) Create a Token in the mobile app service for both users Click on Site administration ► Plugins ► Web services ► Manage tokens Open the console and execute this new curl request, replacing WS_TOKEN with the token for the student s1, COURSE_ID with the course created and the SITE_URL with yours. curl 'SITE_URL/stable_master/webservice/rest/server.php?moodlewsrestformat=json' --data 'courseid=COURSE_ID&wsfunction=gradereport_user_get_access_information&wstoken=WS_TOKEN&moodlewssettingfilter=true' | python -m "json.tool" Confirm that: In the curl request response you see all values set to true except for canviewallgrades Now, repeat the CURL request but with the teacher token this time Confirm that: In the curl request response you see all values set to true except for canviewmygrades