Instead of connecting just to ONE platform (zapier) why don't you build webhooks? This is just a URL with a post request. Post requests you already have (otherwise you couldn't communicate with zapier). So why not allowed users to add their url? This would enable with ONE function access to n8n, make.com, pabbly, activepieces and many more (they all support webhooks).
I don't get it. Connectivity is THE thing.