RPC Handler

[0x4007]

I don't know why you couldn't handle it in that pull but please address asap

I'd use the new single RPC provider method from the rpc-handler and use networkId: "1". The reason why the single, is because mainnet has a lot of RPCs and there's no need for us to hit them all just for a single read op in my opinion.

Originally posted by @Keyrxng in #297 (comment)

[0x4007]

@Keyrxng