ethereum-web-token
EWT bundles Ethereum function-calls into [JWT](https://jwt.io/)-like tokens. It simplifies the use of ECDSA signatures for webapps and the development of [Smart Oracles](https://github.com/codius/codius/wiki/Smart-Oracles:-A-Simple,-Powerful-Approach-to-S
@parity/parity.js
The Parity Promise-based API & ABI library for interfacing with Ethereum over RPC
@parity/etherscan
The Parity Promise-based library for interfacing with Etherscan over HTTP