🔥Introduction

Cross-chain Routing API, Omnichain Messaging & ZK Light-Client Infrastructure

Butter Network provides developer infrastructure for building secure, fully onchain cross-chain applications.

These docs explain how to integrate cross-chain swaps, omnichain messaging, and interoperability flows powered by Butter’s ZK light-client technology.

Butter is designed for developers building wallets, DEXs, dApps, and protocols that require trust-minimized cross-chain execution — without multisigs, external validators, or centralized relayers.

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Getting started

If you are new to Butter Network, start with:

1. About Butter Network

2. Understanding the ZK Light Client

3. Cross-chain Flow & Omnichain Development

4. Integration Guides for APIs and smart contracts

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What you can build with Butter Network

Using Butter Network, developers can:

• Enable one-step cross-chain swaps across Bitcoin, EVM chains, Solana, and TRON

• Integrate cross-chain routing that combines bridging and onchain swapping into a single flow

• Build omnichain applications with verified cross-chain execution

• Access non-custodial liquidity routing sourced directly from onchain DEX and AMM pools

• Leverage ZK light-client verification for secure, trust-minimized settlement

Butter’s architecture is optimized for composability, safety, and production-ready integrations.

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Core documentation sections

🔥 About Butter Network

High-level overview of Butter’s architecture, design philosophy, and role as an omnichain interoperability hub.

🔥 ZK Light Client

Learn how Butter uses ZK-powered light-client verification to validate source-chain state and enable secure cross-chain execution.

🔥 Omnichain Development

Understand cross-chain flows, omnichain isomorphism, and how to design applications that operate seamlessly across multiple blockchains.

🔥 Omnichain Messaging Integration

Guides for integrating omnichain messaging, including API usage, contracts, and deployment references.

🔥 Butter Bridge & Routing Integration

Step-by-step guides for integrating cross-chain swaps, routing APIs, contract interfaces, fee models, and deployed contracts.

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Who should use these docs

These docs are intended for:

• Wallet teams integrating cross-chain swaps

• DEXs and aggregators expanding cross-chain support

• dApp developers building omnichain products

• Infrastructure teams requiring secure cross-chain execution

• Protocols looking to integrate Bitcoin and non-EVM chains into their stack

For integration support or partnership inquiries, visit the Integrations page on the main site.