Box.net repository
From MoodleDocs
Please refer to these notes before editing this page.
Location: Administration > Modules > Repositories > Manage repositories
Obtaining an API key
Create a Box.net account at http://www.box.net/.
Visit http://www.box.net/developers/api. Click on Start developing, then Create new application, fill out the form and 'Save service' to get your API key. For all the settings, Moodle doesn't care what you put in.