Fetching Video From YouTube Automatically [closed]

Without recommending a plugin, I would suggest looking at a service like IFTTT which allows you to chain API’s together.

From the website:

IFTTT is a service that lets you create powerful connections with one
simple statement ‘if this then that’.

Channels are the basic building blocks of IFTTT. Each Channel has its
own Triggers and Actions. Some example Channels are: Facebook,
WordPress, Twitter, RSS, GMail, YouTube.

The this part of a Recipe is a Trigger. Some example Triggers are “I’m
tagged in a photo on Facebook” or “I check in on Foursquare.”

The that part of a Recipe is an Action. Some example Actions are “send
me a text message” or “create a status message on Facebook.” Pieces of
data from a Trigger are called Ingredients. For example, the
Ingredients of an Email Trigger could be: subject, body, attachment,
received date, and the sender’s address.

Recipies can be found here.