The User Management API allows you to create user accounts.
User accounts are effectively stub accounts consisting of your unique identifier of the user. Usernames and passwords are handled by your application, and are not stored by MassiveMusic. MassiveMusic does not handle any personally identifiable information about your users.
Access to user resources is managed using 2-legged OAuth protocol through the userId parameter created using own identifier of the user. The user with the given userId must be created beforehand using the user/create method.