To create your API key for enabling Youtube videos in the Custom page feature, follow these steps:

– Go on
– Login or create a Google account
– Click on “Select a project” or “My Project” then click on “New Project“:

– Create your project:

– Select “Library” on the left menu and add “YouTube Data API v3“:

– Click on “Enable“:

– Then click on “Credentials” on the left menu:

– Click on “+ Create credentials” > “API key“:

WARNING: Do not restrict the key, hit “CLOSE”.