Get Balances for addresses over network other than system's wallet

### 🚀 The feature, motivation and pitch

Currently address can be determined just for the in-system wallet, but we cannot search for other wallet's addresses.

It'll be very useful if people could use the same agent without changing the code to check other people's balances

### Alternatives

_No response_

### Additional context

I'm working on this, will be raising a PR