Etherscan

Etherscan is an Ethereum block explorer (https://etherscan.io/)

Here is some Python code to get the balance from an ETH address using their API.

def eth_balance(address): api_url="https://api.etherscan.io/api?module=account&action=balance&tag=latest&apikey=YourApiKeyToken&address=" fetch_url=api_url+address try: req = requests.get(fetch_url) req.raise_for_status except Exception as err: print('failed to talk to Etherscan - {0} - {1}'.format(err.message, err.args)) sys.exit(2) try: resp = req.json except Exception as err: print('failed to parse JSON - {0} - {1}'.format(err.message, err.args)) sys.exit(2) rawbalance = resp['result'] balance=round((int(rawbalance)/1000000000000000000),2) return balance
 * 1) get balance of a wallet from Etherscan
 * 2) parameter: 