IBC Eureka: Fast, Cheap, and Seamless Interoperability between Cosmos and Ethereum

What is IBC Eureka?

IBC Eureka is the canonical implementation of IBC v2 that enables seamless interoperability between Cosmos and Ethereum ecosystem. As a subset of the proven Inter-Blockchain Communication (IBC) protocol, Eureka extends the reach of 115+ Cosmos chains to Ethereum (Q1 2025) with support for Layer 2 networks such as Base and Arbitrum or Solana to be added soon.

Connect Your Chain

Connect your Cosmos chain to Ethereum and other EVM chains with minimal cost and battle-tested security.

Instant Compatibility

If your chain already uses IBC, is connected to the Cosmos Hub and has been onboarded to the Skip API, you can immediately connect to Ethereum through Eureka with no new dependencies.

Getting Started

To start using Eureka, you have several options:

1

Understand the Tech

Read the Technical Overview to see how Eureka works.

2

Explore the Testnet

Follow our Testnet Testing Guide to test Eureka’s functionality using our CLI tool.

3

Connect with Us

If you’re interested in integrating Eureka, contact Jeremy or Susannah to walk through the details.

4

Integrate Eureka

Follow the steps outlined in the Integration Guide to get set up!

Coming Soon

  • Testnet Launch: March, 2025
  • Ethereum Mainnet Integration: End of Q1 2025
  • Additional EVM Chain Support: Base, Arbitrum, and Optimism in Q2 2025

Support and Resources

Need help with your Eureka integration? Our team is ready to assist:

For technical specifications, visit the IBC v2 Specification.