Build

ZetaChain is a blockchain for universal omnichain apps that span across any blockchain, from Ethereum and Cosmos to Bitcoin and beyond.

Building Universal Apps

Dive into the basics of building on ZetaChain

Universal App Basics

What is a universal app and what makes it different

Interacting with a Universal App

Making contract calls, sending and withdrawing tokens, and general message passing

Universal EVM

EVM enhanced with omnichain interoperability features, enabling the development of robust universal apps

System Contract

Stores useful values and functions used by universal apps

Connector Contract

Enables message passing and ZETA transfer to and from universal apps

Bitcoin Interoperability

Learn about how universal apps can be called from Bitcoin

Gas Fees

Learn about ZRC-20 withdraw fees, message passing fees

Account Addresses

Learn about types of account address, how to use and convert between them

Work with Us

Join an amazing, global team of passionate builders.

View Open Roles →

Tutorials

First Universal App

Learn how to create, deploy and interact with a universal app

Swap

Implement an omnichain swap app compatible with chains like Ethereum, BNB and Bitcoin

Swap to ZETA

Enhance the omnichain swap app with the ability to swap any token to ZETA

Staking

Explore how universal apps can be used for omnichain staking

NFT

Learn how to create a client-side UI for your universal app with Next.js and TypeScript

Bitcoin Frontend

Learn how to make calls to universal apps from Bitcoin with wallets like XDEFI and UniSat

Single Input, Multiple Outputs

Learn how a single call to a universal app can create multiple outbound transactions

Connector: Send ZETA

Learn how to send ZETA tokens to and from a universal app using the Connector API

Connector: Messaging

Use the Connector API to send arbitrary messages to and from a universal app

Connector: ERC-20

Use the Connector API to send any ERC-20 token to and from a universal app

Connector: NFTs

Use the Connector API to send any NFTs to and from a universal app

Apps and Services

Goldsky

Subgraph indexer

Pyth

Price and VRF Oracle

Particle Network

Account Abstraction

Envio

Real-time data indexer

Working with Tokens

ZETA

ZETA is the native staking, gas and governance token of ZetaChain

ZRC-20

Native gas and supported ERC-20 tokens from connected chains are represented as ZRC-20 on ZetaChain

ERC-20

ZetaChain's universal EVM supports standard ERC-20 tokens

Architecture

Observer-Signer Validators

Privileged Actions

Staking Rewards

Whitelisting ERC-20

Modules

Zetacore Daemon

Contracts

Reference

Types of Transactions

Universal App Template

Bug Bounty

Get rewarded as a researcher, developer, or user who helped identify and report security vulnerabilities.

Report a bug or vulnerability →

Get Support

Get the help from a supportive, active and growing community

Developer Community

Builders, Validators and more

Get the help you need when you need it, from a supportive, active and growing developer community.

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Global Community

Community-led regional support

Get connected with our official channels and active global community of supportive builders within the ZetaChain Ecosystem.

Connect with the Community →