The LTI Gradebook Services is an LTI Service subplugin for the LTI Module.

It fully implements the incoming IMS LTI Advantage service branded as Assignment and Grade Services (see https://www.imsglobal.org/lti-advantage-overview).

The plugin documentation is found at: https://docs.moodle.org/dev/LTI_Gradebook_Services

The code is hosted at: https://github.com/CengageEng/moodle-ltiservice_gradebookservices

Main development is completed, but final release is pending the IMS Global Validator to validate service compliance, subsequent class test and possibly some additional work to allow the service to be used under an LTI 1.1 deployment (see https://docs.moodle.org/dev/LTI_Services_on_LTI_1x)