Instructions to activate an api key

1) log in to the console Google: Click here

2) accept the permissions if required

3) click on the left menu and choose:
Services API > Credentials

4)Click on "create"

5)leave everything as is and click "create" and wait for the confirmation of creation

6)click on the left menu and choose: Library

7) in the search bar as shown, write "youtube" and click on the first result for "YouTube Data API V3"

8) click on the blue button ENABLE and wait for the enabling

9) click on the menu and return again
Services API > Credentials

10) click on the create credential > API Key

11) copy the generated key and paste it below, then click on the Send Key

Paste here the generated key