I am creating software that will let users more easily create Google Ads Conversions on their own website as a WordPress plugin and also track conversions via the API. Right now, as I understand it, every API request - creating and sending conversions - requires a Developer Key. To keep that secure, I would have to create my own server which would be in the middle of their website and the Google Ads API.
I really do not want to do this! I don't want to have a server that needs to get pinged every time a form submission, purchase, or any kind of conversion event that needs to get tracked from every website using my plugin. I want to be able to have the WordPress website itself send these into the Google Ads API directly and not involve my site.
Is it feasible to ask every user to get their own Developer Key or is that process too difficult to go through?
Is there another way to do this?