Using H5P in Moodle via LTI
H5P provides a very tight integration with Moodle through H5P.com.
The images above are screenshots of (1) grades from H5P.com in Moodle, (2) the H5P.com repository in Moodle, (3) editing H5P.com content in Moodle and (4) viewing H5P.com content in Moodle
H5P Moodle plugin
For self-hosters there is an option of a Moodle plugin