How to setup local Starknet node with Account contracts?

So if you are testing on Goerli, you can use the faucet to get some testnet Eth (https://faucet.goerli.starknet.io/)

If you are testing locally, you can load the starknet-devnet private keys using this sample code (if you are happy to use starknet-py):

from starknet_py.net.gateway_client import GatewayClient
from starknet_py.net.networks import TESTNET
from starknet_py.net import AccountClient, KeyPair
from starknet_py.net.models.chains import StarknetChainId
from starknet_py.net.signer.stark_curve_signer import StarkCurveSigner
from starknet_py.contract import Contract

node_url = "http://localhost:5050" 
private_key = "ENTER HERE"
address = "ENTER HERE"
key_pair = KeyPair.from_private_key(key=int(private_key, 16))
signer = StarkCurveSigner(address, key_pair, StarknetChainId.TESTNET)
 account_client = AccountClient(client=gateway_client,
       address=player_address, signer=signer)

contract_address = "ENTER HERE"
abi = "LOAD YOUR ABI"
testing_contract = Contract(address=contract_address, abi=abi, client=account_client)

Otherwise, you can use starknet-devnet faucet to get some funds:

https://github.com/Shard-Labs/starknet-devnet#mint-token---local-faucet

I don't know about Protostar, but if you are using Nile I would recommend you deploy your account contract, and then use the faucet to send funds to that address.