Create and name a new project called youtube-api, when is complete, click on it to open it

Enable the youtube api library by going to library and searching for youtube api ...version

Click CREATE CREDENTIALS

Choose which library you want to use, in our case 'youtube', then click Public data because Oauth is needed for User data

This gives us the api key

Anytime you need the api key, go to the project then the Credentials tab on lhe left, then the api key

Pase the api into a variable in your script