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The Open Standard for Secure Interoperability

Connect your digital ledger to 200+ networks with secure, neutral, open-source interoperability, including Hyperledger Besu, Ethereum, and Cosmos.

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Documentation
$50B+ transaction volume since 2021.
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IBC lets banks, financial institutions, and other ledger operators move data and assets directly between ledgers, supporting use cases like settlement, asset issuance, and atomic DvP and PvP transactions.
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Learn How IBC Works

Universal Interoperability

Networks that implement the IBC standards can interoperate with each other, enabling cross-ledger workflows for use cases like asset transfers, data sharing, business process automation, and more.

Permissionless Access

IBC is open source. There are no fees or costs to use IBC.

Robust Security

IBC’s light client-based direct verification removes the need for a third-party intermediary in cross-ledger interactions. Verification can be tailored to different security requirements, using Attestors for permissioned networks and consensus or zero-knowledge (ZK) light clients for permissionless networks.

IBC-Connected Ledgers

Join the IBC ecosystem of interoperable ledgers and applications, with support for any EVM-compatible chain.

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Regen
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Ethereum
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Hyperledger Besu
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Cardano
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dYdX Protocol
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Injective
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Initia
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Akash
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ZIGChain
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Babylon Genesis
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Provenance
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Xion Mainnet
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Cheqd
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Dora Vota
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SEDA
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MediBloc
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XPLA
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Haqq Network
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Dungeon Chain
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Regen
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BeeZee
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Allora
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Neutaro
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BitSong
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Sommelier
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Jackal
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Gitopia
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Desmos
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Bitcanna
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Nibiru
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Unification
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Sunrise
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Chain4Energy
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Empowerchain
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Passage
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Realio Network
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Archway
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MANTRA
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Firmachain
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KYVE
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Band
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Oraichain
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Nolus
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Lava
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Juno
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Saga
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Gonka
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Sentinel
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Dymension Hub
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AtomOne
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Shentu
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Celestia
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Cronos
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Axelar
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Secret
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Cosmos Hub
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Osmosis
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Agoric

Public Network Size

IBC is one of the most widely-adopted blockchain interoperability standards across digital ledger networks.

144%
Growth from 2021 to 2025
Annual IBC Transfers:

IBC averaged over 10.8 million transfers annually between 2021 and 2025.

Cumulative IBC Transfer Value:

IBC processed over $47 billion in cumulative transfer value between 2021 and 2025.

IBC is part of the

Cosmos Stack

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Development and maintenance is funded by the Interchain Foundation and hundreds of independent developers contribute to the protocol on a volunteer basis.

Build without boundaries

Out-of-the-box features for secure cross-ledger workflows.

Start Building
IBC CLI
A single tool that packages IBC’s off-chain functions: the command-line interface, relayer, attestor, signer, and deployment automation.
General Message Passing
A sender on one ledger can trigger a function call on a destination chain, enabling cross-ledger contract execution.
Interchain Fungible Tokens
Tokens are burned on the source ledger and minted on the destination ledger, so the same token exists natively on every chain it moves to.
Customizable Interoperability
A flexible framework for interoperability solutions, with multi-language solutions, the ability to build custom applications, and extensibility to enable verification across all types of ledgers.

Connected Articles

Cover for IBC v2: Enabling IBC Everywhere
Announcements
Code Walkthrough
IBC v2: Enabling IBC Everywhere
The v2 of the Inter-Blockchain Communication Protocol, launches at the end of March 2025. This blog details the changes to the protocol and how you can benefit from the improved design.
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Susannah Evans
February 20, 2025
11 Min
Cover for IBC Attestations: Light Clients are the Tip of the Iceberg
About IBC
IBC Attestations: Light Clients are the Tip of the Iceberg
This post discusses multiple ways teams can build IBC connections other than via light clients. We are working on an attestation-based solution to connect IBC to Base, Arbitrum, Solana, and beyond, and are seeking your feedback.
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Susannah Evans
March 20, 2025
4 Min

Testimonials

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Crypto.com

Integrating the IBC solo machine client has been an important step for us. It allowed us to mint pegged DOT and various other tokens, all without the hassle of setting up an entire blockchain.

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Datachain

We have long believed that IBC will become the de facto standard for blockchain interoperability. This conviction has driven us to contribute to IBC, particularly by extending its availability to non-Cosmos blockchains, including EVMs and enterprises. Ibc-solidity is one such implementation we kickstarted. We view IBC as an indispensable technology. It is the foundation for our trust-minimized cross-chain bridge.