From DSC:
There are now more than 12,000+ skills on Amazon’s new platform — Alexa.  I continue to wonder…what will this new platform mean/deliver to societies throughout the globe?


From this Alexa Skills Kit page:

What Is an Alexa Skill?
Alexa is Amazon’s voice service and the brain behind millions of devices including Amazon Echo. Alexa provides capabilities, or skills, that enable customers to create a more personalized experience. There are now more than 12,000 skills from companies like Starbucks, Uber, and Capital One as well as innovative designers and developers.

What Is the Alexa Skills Kit?
With the Alexa Skills Kit (ASK), designers, developers, and brands can build engaging skills and reach millions of customers. ASK is a collection of self-service APIs, tools, documentation, and code samples that makes it fast and easy for you to add skills to Alexa. With ASK, you can leverage Amazon’s knowledge and pioneering work in the field of voice design.

You can build and host most skills for free using Amazon Web Services (AWS).