Prerequisites Install ngrok and run it ngrok http 80 Test Configure an LTI tool registration for http://ltiapps.net/test/tp.php , offer it all capabilities and all services Register the new tool (Site administration ▶︎ Plugins ▶︎ Activity modules ▶︎ LTI ▶︎ Manage external tool registrations then click "Configure a new external tool registration") select all the capabilities and services Go to Site administration ▶︎ Plugins ▶︎ Activity modules ▶︎ LTI ▶︎ Manage external tool types and enable the Test tool provider tool type configured by the tool proxy received. Goto a course as a teacher and add an instance of this tool Launch the tool and click on the Tool Settings button Ensure the application/vnd.ims.lti.v2.toolsettings+json format option is selected Click the Read button The JSON returned should include an @id element at the top level of the @graph element(s) and also one within the custom element which is the same value but with a suffix of "/custom"