ISY

The ISY skill allows you to control your ISY home-automation controller from Universal Devices. This enables you to control your devices, locks, thermostats and even programs from your echo.
To use this skill, you need to have an account on UDI portal at https://my.isy.io. Once your account is created, you need to have at least one authorized ISY in your account. For more information on setting up your ISY on portal: http://www.universal-devices.com/install-module/
When you enable this skill, you will be prompted to link your echo to your UDI portal account. You will have to provide your UDI portal user ID and password. Once the link process is complete, you can start using the skill.
If your portal account has several ISYs, you need to start by choosing which ISY you want to control. You can login to portal, go to your profile, and select your preferred ISY. Alternatively, you can say to your echo: Alexa, tell izzy to select my preferred I.S.Y., and you will be prompted to say which ISY you want to control. You need to say the Alias you assigned to your ISY in portal. If your account has only one ISY, this step is not required.

Before you can control devices, you also need to configure them in portal at https://my.isy.io. Go to the ISY tab, and use the tool Amazon Echo on your ISY.

Here's the complete capability list:
Turn off a device
Turn on a device
Turn on a device to x percent
Brighten device
Dim device
Toggle device
Get device status
Lock a door
Unlock a door
Lock all doors (Alexa will lock all devices it recognizes as a lock)
Unlock all doors
Get thermostat temperature
Get/Set thermostat mode
Get/Set thermostat setpoint for heat or cool
Increase/Decrease setpoint
Run program (runIf only)
Stop program
Get program status