H5P
8.0#2 in education softwareFrom $1,560 a yearFree planWebAPISelf-hosted
VisitNo prices published.
H5P suits educators, publishers, developers, and organizations that want to create or reuse interactive learning content. The self-hosted option is for users with Drupal, WordPress, or Moodle.
You want what its maker publishes above — check its page for the details.