Is there a User Management Api?

[CryptoCa5e]

Hi,
We are trying to build an application for which we are planning to authenticate a user using their existing Wazirx accounts.
So users create account in Wazirx and then in our application tell us about that account. We then use wazirx login to authenticate that user and get their details.
Its more like what google provides, in which users can login to any other application using their google account.

So is there any feature or api for above scenario?
We went through the public apis but couldn't find such solution.
So we were wondering if there is any paid solution for this.