# GetControllers

The `GetControllers` action returns a list of Controllers, with the following information about each Controller:

- The UUID of the Controller.
- The IP address of the machine on which the Controller is running.
- The name of the host and port on which the Controller is running.
- The GSSAPI service name of the Controller (if you are using GSSAPI authentication).
- Whether the Controller is registered.
- The time of the last response, in milliseconds.

## Optional Parameters

This action accepts the following optional parameters.

Parameter | Description
--- | ---
Discovered | Returns details of unregistered Controllers that Coordinator discovers by SSDP.
Registered | Returns details of registered Controllers.

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