Learning Tools Interoperability (LTI) is a standard developed by 1EdTech formerly known as IMS Global Learning Consortium at the time of creation.
[1] In its current version, v1.3, this is done using OAuth2, OpenID Connect, and JSON Web Tokens.
For example, a Learning Management System (LMS) may use LTI to host course content and tools provided by external or third-party systems on a website without requiring a learner to log in separately on the external systems.
LTI has been adopted by many large educational content providers, including Pearson and McGraw Hill.
[7] [8] [9] Popular Learning Management Systems, such as D2L Brightspace, Instructure Canvas, Blackboard, BenchPrep, LAMS, OpenLearning, Sakai, Moodle, Totara, iTeach, EduWave K-12 and Open edX also support LTI.