Ask HN: Why Zapier doesn't have its own API?

I was looking for the Zapier API, but I've to not found any.

It sounds counter-intuitive, or worst, that a company like Zapier, doesn't offer its API! Especially considering it's a big API business company..

Well, it's not 100% true, I've found a "Partner" API, but it's only for application's publisher :(.. in other words it doesn't let you control your account, Zaps etc.

Did I miss something? I'll happily reverse-engineer their private API but dealing with the authentication is going to be painful over time. If only they had an OAuth flow..

Does anyone here work at Zapier and can offer some comments?