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Cosmos Stack

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The Cosmos Stack is the most widely-adopted and battle-tested Layer 1 blockchain technology stack, in production with 200+ chains today. It is performant, customizable, and EVM-compatible, offering engineers full end-to-end control of their blockchain infrastructure and implementation.

The Stack is modular by design; use pre-built code modules or integrate custom features and logic for your use case, compliance needs, governance, consensus, and performance requirements. The Cosmos Stack is open-source.

The Cosmos Stack's primary components include:

  • CometBFT, a low-latency, fast finality, and high throughput consensus engine
  • Cosmos SDK, a modular SDK for building secure, high-performance, application-specific blockchains
  • Cosmos EVM, a production-ready EVM layer with full compatibility with Ethereum smart contracts and tooling
  • Inter-Blockchain Communication Protocol (IBC), the secure, industry-standard blockchain messaging protocol that enables cross-chain communication without the use of a third-party intermediary.
Need Help? Support & Community: Discord - Telegram - Talk to an Expert - Join the #Cosmos-tech Slack Channel

Cosmos Stack Components

Cosmos SDK CometBFT IBC Cosmos EVM Testing Chain Info Frontend CosmWasm*
Blockchain SDK Battle-Tested Consensus Inter-Blockchain Communication Protocol Native EVM Compatibility Utilities & Frameworks Registries & Tools TS Tooling & Utilities Rust Smart Contracts
docs docs docs docs docs
Cosmos SDK CometBFT Eureka Cosmos EVM MultiTest* Chain Registry* Create Interchain App* CosmWasm*
Ignite CLI* CometBFT DB ibc-go Interchain Test Client* Interchain Kit* TS Codegen*
Spawn CLI* Hermes Relayer* Starship* npm Module* Interchain UI* Wasmd*
ibc-rs* Rust Crate* InterchainJS* Cosmwasm Optimizer Crate*
Utilities* Telescope*

Note: Projects marked with an asterisk (*) are community or third-party maintained. They are not directly maintained by Cosmos Labs.

Maintainers and Contributors

Cosmos Labs maintains the core components of the stack: Cosmos SDK, CometBFT, IBC, Cosmos EVM, and various developer tools and frameworks. In addition to developing and maintaining the Cosmos Stack, Cosmos Labs provides advisory and engineering services for blockchain solutions. Get in touch with Cosmos Labs.

Cosmos Labs is a wholly-owned subsidiary of the Interchain Foundation, the Swiss nonprofit responsible for treasury management, funding public goods, and supporting governance for Cosmos.

The Cosmos Stack is supported by a robust community of open-source contributors.

Security

Read about updates and security processes in the Security repo.

Explore the Cosmos Network to learn more about the Cosmos technology stack and use cases.

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  1. cosmos-sdk cosmos-sdk Public

    ⛓️ A Framework for Building High Value Public Blockchains ✨

    Go 6.8k 4k

  2. cosmos cosmos Public

    Internet of Blockchains ⚛

    TeX 1.3k 323

  3. gaia gaia Public

    Cosmos Hub

    Go 551 766

  4. cosmjs cosmjs Public

    The Swiss Army knife to power JavaScript based client solutions ranging from Web apps/explorers over browser extensions to server-side clients like faucets/scrapers.

    TypeScript 692 397

  5. ibc-go ibc-go Public

    Inter-Blockchain Communication Protocol (IBC) implementation in Golang.

    Go 610 723

  6. ibc ibc Public

    Interchain Standards (ICS) for the Cosmos network & interchain ecosystem.

    TeX 1k 447

Repositories

Showing 10 of 123 repositories
  • cosmos/chain-registry’s past year of commit activity
    Python 564 CC-BY-4.0 1,445 69 (2 issues need help) 26 Updated Sep 29, 2025
  • evm Public

    An EVM compatible framework for blockchain development with the Cosmos SDK

    cosmos/evm’s past year of commit activity
    Go 98 Apache-2.0 101 141 (8 issues need help) 29 Updated Sep 29, 2025
  • cosmos-sdk Public

    ⛓️ A Framework for Building High Value Public Blockchains ✨

    cosmos/cosmos-sdk’s past year of commit activity
    Go 6,776 Apache-2.0 4,044 167 (1 issue needs help) 36 Updated Sep 29, 2025
  • solidity-ibc-eureka Public

    This is a solidity implementation of IBC v2.

    cosmos/solidity-ibc-eureka’s past year of commit activity
    Rust 87 MIT 47 28 14 Updated Sep 29, 2025
  • gaia Public

    Cosmos Hub

    cosmos/gaia’s past year of commit activity
    Go 551 Apache-2.0 766 12 (1 issue needs help) 22 Updated Sep 29, 2025
  • docs Public
    cosmos/docs’s past year of commit activity
    JavaScript 1 4 1 3 Updated Sep 29, 2025
  • rosetta Public

    Rosetta implementation for cosmos zones

    cosmos/rosetta’s past year of commit activity
    Go 7 Apache-2.0 9 0 2 Updated Sep 29, 2025
  • btree Public
    cosmos/btree’s past year of commit activity
    Go 0 MIT 0 0 0 Updated Sep 24, 2025
  • devnet-faucet Public
    cosmos/devnet-faucet’s past year of commit activity
    JavaScript 0 0 0 0 Updated Sep 24, 2025
  • iavl-bench Public
    cosmos/iavl-bench’s past year of commit activity
    Go 7 Apache-2.0 2 0 2 Updated Sep 24, 2025