Hi,
Thank you for reaching out to the Google Ads API support team.
As you have started using the Google Ads API, make sure you have completed the
prerequisites and the
keyconcepts to use any of the Google Ads API services. The Google Ads API uses the OAuth2.0 for authentication and authorization.
If this is not what you are looking for, could you please tell us more about the specific protocol you're interested in.
