Cosmos IBC Eureka Launch:- In a bid to integrate Ethereum ecosystem with the Cosmos network, Cosmos has announced the launch of its interoperability layer, Eureka – bringing multichain operability.
Eureka upgrade will now allow Ethereum-compatible chains to directly communicate with cosmos blockchains via its native interoperability protocol – IBC.
Notably before the launch of Eureka, Cosmos’ IBC was only available to Cosmos SDK-based chains.
This development by the Interchain Foundation is being positioned as a potential game-changer in the increasingly competitive world of cross-chain communication.
How Eureka Works
At its core, the Eureka upgrade enables Ethereum-compatible chains to communicate directly with Cosmos-based blockchains through IBC.
This move effectively extends Cosmos’ famed interoperability to one of the most widely used smart contract platforms in the crypto space. This will also open the door to a wave of new applications and user flows.
The technical innovation underpinning Eureka lies in the new Ethereum Interoperability Module (EVM IBC), which allows Ethereum-compatible networks — such as Arbitrum, Optimism, and Base — to plug into IBC.
The first implementation was integrated into dYdX Chain, a decentralized derivatives exchange that migrated from Ethereum to Cosmos in late 2023.
IBC Eureka is LIVE!
→ Transfers faster than Ethereum finality
→ Send from Ethereum for as low as $1
→ 1-click experience that supports your favorite walletStarting with Ethereum, @cosmoshub, @babylonlabs_io, Cosmos chains,
and soon, IBC everywherepic.twitter.com/CLoNaR8zrD
— Cosmos – The Interchain
(@cosmos) April 10, 2025
What it means for Developers?
Eureka would empower developers to create multichain applications that operate smoothly across different blockchain networks. This would be possible without splitting user bases or additional security concerns.
By providing a secure, protocol-level bridge, Eureka allows apps to tap into the strengths of multiple chains simultaneously.
Using the Cosmos Hub as a central coordination layer, chains can connect to the broader IBC network through a single integration.
This setup enables developers to access the entire spectrum of IBC-enabled networks, users, liquidity, and on-chain services without needing to build or maintain additional infrastructure.
In effect, it creates a scalable launchpad—like a distribution hub—for decentralized apps, assets, and services.
The Cosmos Hub then acts as a gateway to a growing ecosystem, giving builders the ability to compose across hundreds of protocols and chains, unlocking a truly modular and interoperable app economy.
MANTRA, Babylon to soon Integrate
Notably, on its one day launch itself, projects like Babylon which launched its mainnet yesterday, Solv Protocol, PumpBTC, SatLayer, integrated IBC Eureka support.
This integration would make cosmos apps and chains more accessible by ensuring fast and secure transactions.
With this module, any dApp or protocol built on an EVM chain can now directly communicate with Cosmos chains using IBC packets — a significant leap over conventional bridging solutions that typically rely on centralized or semi-trusted intermediaries.
Eureka is also working to bring L2 networks like Arbitrum, Optimism, and zkSync offer lower gas fees and faster throughput than Ethereum mainnet, and they’ve captured billions in total value locked (TVL).
What Comes Next?
The next phase for Eureka will be real-world adoption.
Derivatives Exchange, dYdX’s implementation is the first of its kind, but its success or failure could determine whether other Ethereum-based projects choose to follow. Future upgrades may also include improved compatibility with other virtual machines and enhancements to security and message throughput.
While it’s too early to declare Eureka a definitive rival to Ethereum L2s, it’s clear that Cosmos is no longer content to sit on the sidelines. With this launch, it’s staking a serious claim as a central player in the future of multi-chain architecture.
Whether developers embrace this new path will depend on how well Eureka performs — and how quickly the ecosystem can capitalize on its promise.
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