First you will have to register your application on Soundcloud. Check out the documentation for more information: http://developers.soundcloud.com/docs#authentication
To add new API Key, you should go to: http://soundcloud.com/you/apps/new
Next configure a resource owner of type soundcloud with appropriate
client_id, client_secret.
# config/packages/hwi_oauth.yaml
hwi_oauth:
resource_owners:
any_name:
type: soundcloud
client_id: <client_id>
client_secret: <client_secret>When you're done. Continue by configuring the security layer or go back to setup more resource owners.