Interchain Labs launches IBC Eureka to connect Ethereum to the Cosmos ecosystem

Quick Take

  • Ethereum is now the first non-Cosmos network to join the IBC ecosystem, and IBC Eureka looks to add networks such as Solana, Base and Arbitrum in the future.
  • The launch of IBC Eureka comes after Interchain Labs developers tested the interoperability between Ethereum and Cosmos in late March of this year.

Interchain Labs unveiled a new bridge product called IBC Eureka to connect the Ethereum and Cosmos blockchain systems.  

IBC Eureka expands upon the second version of the Inter-Blockchain Communication (IBC) protocol to permit quick and affordable connections between Ethereum and Cosmos, using the Cosmos Hub to undergird the IBC routing, according to a release shared with The Block.

Ethereum is now the first non-Cosmos network to join the IBC ecosystem. Eureka developers plan to add networks such as Solana, Base and Arbitrum in the future. The system is designed to reduce transfer costs, including gas and relay fees, from Etheruem into Cosmos to less than $1.

"IBC Eureka represents a steep improvement in security and programmability for cross-chain communication," Interchain Labs co-CEO Barry Plunkett told The Block in an email. "It will allow developers across Ethereum and Cosmos to build a new class of applications that unify and compose the liquidity and protocols historically fragmented across multiple chains. Our mission for 2025 is to continue to expand IBC Eureka, onboarding additional chains to create a truly unified Interchain economy.”

Among the first projects to onboard IBC Eureka are the decentralized exchange dYdX, the real-world asset-focused Layer 1 blockchain MANTRA, Bitcoin liquid staking protocol Lombard and Bitcoin staking protocol Babylon

"The capability to bring Bitcoin Staking LSTs minted on Babylon Genesis into Cosmos over IBC Eureka marks a major step toward unlocking Bitcoin’s full DeFi potential," said Fisher Yu, Babylon Labs CTO, in a statement. "This integration enables seamless, secure, and efficient access to Cosmos DeFi for Bitcoin holders — and brings us closer to Bitcoin alignment across every chain and the broader ecosystem.” 

Interchain Labs is under the Interchain Foundation, a Switzerland-based nonprofit that develops the Layer 1 blockchain Cosmos and its related ecosystem. The launch of IBC Eureka comes after Interchain Labs developers tested the operability between Ethereum and Cosmos in late March of this year, The Block previously reported. 


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© 2025 The Block. All Rights Reserved. This article is provided for informational purposes only. It is not offered or intended to be used as legal, tax, investment, financial, or other advice.

AUTHOR

MK Manoylov has been a reporter for The Block since 2020 — joining just before bitcoin surpassed $20,000 for the first time. Since then, MK has written nearly 1,000 articles for the publication, covering any and all crypto news but with a penchant toward NFT, metaverse, web3 gaming, funding, crime, hack and crypto ecosystem stories. MK holds a graduate degree from New York University's Science, Health and Environmental Reporting Program (SHERP) and has also covered health topics for WebMD and Insider. You can follow MK on X @MManoylov and on LinkedIn.

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To contact the editor of this story: Daniel Kuhn at [email protected]

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