How to authenticate users for a web3 crypto app?

Integrations

Is there any compatible social login SDK that can be used in FlutterFlow?

I dont want to use metamask or other external wallets.

Something with 0auth or alike where social logins, emails or phone number can be used to logins and manage users.

What have you tried so far?

I've searched for current SDKs but they're primarily supported via React Native, not Flutter.

Did you check FlutterFlow's Documentation for this topic?

Yes