Hello, I noticed there is a change in the baseUrl of etherscan APIs ** Important: (Feb-12-2018) The ROPSTEN testnet API service URL has been updated to http://api-ropsten.etherscan.io . The previous API url http://ropsten.etherscan.io will cease to function as of March 31, 2018 https://ropsten.etherscan.io/apis same goes for all other testnets nice work btw :)