1. Eth ScanAn efficient Ether and token balance scanner library
2. MycryptoMyCrypto is an open-source tool that allows you to manage your Ethereum accounts privately and securely. Developed by and for the community since 2015, we’re focused on building awesome products that put the power in people’s hands.
5. shepherdEnsure high-availability for your JSON-RPC calls while improving user-experience