SoundCloud cocoa wrapper can't access resource without account
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Trying to access a public endpoint in the SoundCloud API (https://api.soundcloud.com/tracks.json), sending nil for account to the SoundCloudAPI Library. 

API response: 

    error: Error Domain=NXOAuth2HTTPErrorDomain Code=401 "HTTP Error: 401" UserInfo=0x7556ff0 {NSLocalizedDescription=HTTP Error: 401}

I quote their GitHub repository's general usage guide (https://github.com/soundcloud/CocoaSoundCloudAPI/blob/master/GeneralUsage.md):

>  You can call this method without an account (nil) for anonymous
> requests or with the account you get from [SCSoundCloud account].

Which as I can see in http://developers.soundcloud.com is a resource I am allowed to use without OAuth.

Any thoughts ?