Does flutter or java backend have libraries or frameworks to interact with Metamask extension?

Question

I am currently building decentralized app using flutter for my front end and java springboot for my backend and database management. So I am curious if anyone knows if there are libraries or framework that allows flutter front end or java backend to interact with metamask extension? this is so that the users can approve transactions using their metamask wallet

Answer 1

Web3j for Java.

Web3dart for Flutter.

See also WalletConnect mobile linking to interact with wallets fro mobile applications like Flutter ones.