Next time you go to developer.blackboard.com to register an application, you'll notice some changes. Now you can also register a LTI tool. You register an LTI tool in pretty much the same way you register a REST application. For more information about registering an LTI tool, see Register as a Developer and Manage Your Applications with the Developer Portal.
We will be further adjusting the developer portal to make it more powerful and easier to use, so stay tuned for more updates.