Hi there!
CLI BUILDS use 0 build minutes - we aren’t building for you 
The limit around authorization is for Identity, not Oauth. If you don’t understand the difference (I don’t always myself 
) let us know more about who you are intending to authenticate and how (“my visitor connects to Okta and …” or “my colleagues connect to netlify to create sites via the API” etc), and maybe we can give a better answer.