Initial setup to access MLB GD2 Database: HTTP Forbidden

[Ctru14]

Hopefully this isn't a stupid question, but:
Are there additional setup steps needed to gain access to the MLB database beyond the module install? Accounts, authentication, etc.
When the module wouldn't return any data, I tracked this back to an HTTP Forbidden error when accessing MLB's GD2 link. Same thing when I tested that link in browser - Access Denied.
Am I missing something to set up this API? If there are additional steps to authenticate for database access, can this be clarified in the documentation?
Thanks!