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Cosmos SDK

Build application-specific blockchains with the modular Cosmos SDK framework. Create custom blockchain applications with ease using pre-built and custom modules.

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What You Can Build

The Cosmos SDK enables developers to create powerful blockchain applications:

Custom Blockchains

Build application-specific blockchains tailored to your exact use case with sovereign consensus and governance.

Modular Applications

Combine pre-built modules with custom logic to create sophisticated blockchain applications efficiently.

Interoperable Chains

Built-in IBC support enables seamless communication and value transfer across the Cosmos ecosystem.

Sovereign Networks

Maintain full control over your blockchain’s consensus mechanism, governance, and economic model.

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Essential Modules

The Cosmos SDK includes several battle-tested core modules:

x/bank

Token transfers, account balances, and multi-asset support with built-in safety features.

x/staking

Proof-of-Stake consensus, validator delegation, and slashing conditions for network security.

x/gov

On-chain governance with proposals, voting, and parameter changes for decentralized decision-making.

x/distribution

Fee distribution, staking rewards, and validator commission handling with automated payouts.

x/auth

Account authentication, transaction signing, and account management with multi-signature support.

x/ibc

Inter-blockchain communication protocol for cross-chain token transfers and data packets.

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Getting Started

Official Documentation

Comprehensive guides, tutorials, and API references for building with the Cosmos SDK. Visit SDK Docs →

Module Development

Learn how to build custom modules and integrate them into your blockchain application. Build Modules →

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Community & Resources

GitHub Repository

Source code, issues, and contribution guidelines for the Cosmos SDK project. View GitHub →

Developer Forum

Join discussions with other Cosmos SDK developers and get help from the community. Join Forum →