1. Go to https://console.cloud.google.com/
2. Click "Select a project"
3. Click "NEW PROJECT"
4. Set the project name then click the "CREATE" button
5. Click the three lines in the top left corner
6. Go to API & Services > Dashboard
7. Select the newly created project
8. Select the Library tab on the left navigation menu
9. Scroll down to "YouTube Data API v3" and click it
10. Click the "ENABLE" button
11. Click "CREATE CREDENTIALS"
12. On the "Which API are you using?" question, select "YouTube Data API v3"
13. On the "What data will you be accessing?" question, select "Public data"
14. Do not restrict the key
14. Copy the API key and put it in the /addon_configs/music.yml and/or /addon_configs/ultimatemusic.yml file