Eth.rb

eth.rb is a straightforward Ruby library designed for developers who want to build, sign, and broadcast Ethereum transactions in any environment where Ruby runs. It separates key management from node management, allowing users to sign transactions and handle keys locally or remotely, then broadcast through any Ethereum node via HTTP or IPC. The library supports a wide range of Ethereum Improvement Proposals (EIPs), including token transfers (ERC20), ENS domain resolution, replay protection, and multiple transaction types such as EIP-1559 and newer transaction envelopes. It also supports smart contract deployment, interaction, and Solidity contract compilation directly from Ruby.

The library is intended for Ruby developers working on Ethereum infrastructure, DeFi applications, or enterprise blockchain solutions who need a native Ruby toolset for Ethereum interactions. It supports advanced features like EIP-712 typed data signing, smart contract authentication (EIP-1271), and custom Solidity error handling (ERC-6093). The modular design allows integration with any local or remote Ethereum node, making it flexible for various deployment scenarios.

What sets eth.rb apart is its comprehensive coverage of Ethereum standards and transaction types combined with Ruby-native tooling, including ABI encoding/decoding, RLP encoding, and Solidity bindings. It is fully open source under Apache 2.0 and emphasizes thorough documentation and testing, aiming for 100% API coverage and unit test coverage. Developers can get started by installing the gem via RubyGems and referencing detailed API docs and usage examples on GitHub and the project wiki.