Google last month released Click Conversion Measurement API for tests. Google says Click Conversion Measurement API aims to enable marketers to know whether an ad click resulted in a conversion on another site, without connecting the identity of the user across both sites.
Click Conversion Measurement API is part of the Privacy Sandbox, Google's initiative to deploy alternatives to third-party cookies until they become obsolete in Google Chrome.
Google is encouraging ecosystem stakeholders to participate and share their feedback and results. Registration takes place here.
In July, Google launched Trust Token API to identify bots and real users.