Practical overview
When it fits
Use Eth.rb when a Ruby application needs Ethereum transaction, signature or contract-interaction components, especially when key handling and node connectivity should be managed separately.
Who it is for
- Ruby developers building Ethereum-enabled applications.
- Teams integrating transaction signing and submission into Ruby backends.
- Developers working with Ethereum contract calls, ABI data or signed-message authentication.
Documented uses
- Construct and sign Ethereum transactions in Ruby.
- Broadcast signed transactions through a local or remote node.
- Encode and decode ABI data and interact with smart contracts.
- Sign messages and recover signatures for authentication workflows.
Requirements & limits
- The project is a Ruby library distributed as the eth gem, rather than a hosted service.
- The README describes transaction signing separately from broadcasting, which can be routed through local or remote nodes.
- The documented RPC client supports IPC, HTTP and WebSocket connections.
- The feature list includes ABI and RLP encoding, Solidity bindings, message signatures, typed transactions and smart-contract operations.
- The project specifies the Apache-2.0 license.
Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.
Install the eth Ruby gem
Add the eth library to a Ruby application or install it as a gem.
Before you start
- A Ruby environment that can install gems.
Steps
For an application using Bundler, add
gem "eth"to its Gemfile.Alternatively, install the gem with
gem install eth.
Expected outcome
The `eth` gem is installed or declared as an application dependency.
Guide limitations
- These steps cover installation only; they do not configure a node or demonstrate transaction construction, signing, or broadcasting.
Sources & review
Source record details
- Source availability
- Active
- Sources checked
- 9 October 2026
- Original website title
- q9f/eth.rb · Official homepage title · retained in its source language

