(Thanks to @bitglue for his work getting the smart home exposed via HTTP making this slimmed down version possible.)
haaska implements a bridge between a Home Assistant instance and the Smart Home Skill API for Amazon's Alexa. It provides voice control for a connected home managed by Home Assistant, through any Alexa-enabled device.
For a list of available components that can be controlled Home Assistant Docs
For installation instructions, please see the Haaska Wiki.