Embedded standalone instance supports two running modes depending on a value of admin-only option (true is default).

• true
  • only start services related to server administration
  • do not start other services or accept end user requests.
  • embedded instance will not be visible to remote management clients

• false
  • all services are started
  • embedded instance is visible to remote management clients (e.g. EAP can be configured via admin console)

Embedded host controller doesn't offer such a option and is started using --admin-only=true mode by default. Option to run embedded host controller instance with --admin-only=false should be available as well.