Interchain Foundation funds the development of the interchain stack: open source protocols, libraries, and tools for interconnected chains. In addition to the foundational IBC protocol, our teams maintain Cosmos SDK, CometBFT, IBC, CosmWasm, and CosmJS.

Ecosystem Graphic

Interchain Stack

The interchain stack is an architecture for scalable, secure, and interconnected blockchain-based apps and services. It utilizes IBC, the best-in-class bridging technology, and libraries for chain interoperability.


Cosmos SDK

The world's most popular framework for building application-specific blockchains.


Cosmos Hub

An ever-expanding ecosystem of interconnected apps and services, built for a decentralized future.


Inter-Blockchain Communication Protocol (IBC)

An interoperability protocol for communicating arbitrary data between state machines.



A Byzantine Fault Tolerant state machine replication engine for applications written in Go.



The smart contracting platform for Cosmos SDK appchains, natively built for cross-chain interoperability

The Internet Architecture for Blockchains

An architecture for security, scale, and sovereignty.

Partner with a group of experienced value creators and core developers.

Responsibly shaping a new technological paradigm.