Google Custom Audience/Similar Audience API

How can a CRM data be sent to Google Ads via API as a custom audience just like Facebook Custom Audience? Is there any sample APIs that I can refer to build one.

What i see so far is below on google Ads,

But what we looking for is something like this,

Hi @arun-rajagopal! Thanks for being part of the GitHub Community Forum! We’re glad you’re here.

I wanted to jump in here, and mention that if you don’t get the help you’re looking for from this particular community, you might want to try getting help somewhere that focuses on the Google Ads API such as one of the Google Ads API developer forums.

It’s definitely possible another GitHub user might have run into this same issue and can help, but the GitHub Community Forum focuses primarily on topics related to GitHub itself or collaboration on project development and ideas. We want to make sure you’re getting the best support you can, but this forum may not be the right place for this particular topic.