YouTube Quota

The YouTube Data API uses a quota system to ensure that developers use the service as intended and do not create API clients that unfairly reduce service quality or limit access for others. You can read more about quota usage here.

Your quota usage

Navigate to Enabled APIs & services then, look for Youtube Data API v3.

Screenshots:

Request additional quota

If you would like to request additional quota beyond the default allocation, you must first complete an audit to show that your project is in compliance with the YouTube API Services Terms of Service.

You can read more about quota usage here.