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    zkSync ERA documentation

    Welcome to zkSync Era docs!
    Guides, technical reference, and tutorials for building on zkSync Era.

    Protocol upgrade

    In the upcoming protocol upgrade scheduled for August-September 2023, there will be modifications to how certain block properties are implemented on zkSync Era. Find more details in the announcement on GitHubopen in new window.

    Getting started

    Build a smart contract app with zkSync Era.

    Era vs Ethereum

    Differences between zkSync Era and Ethereum.

    Hyperscaling

    Scaling Ethereum beyond Era with hyperchains and ZK Stack.

    Developer Tools

    Tools overview

    Browse the most popular tools to build on zkSync Era.

    zksync-cli

    A command-line tool to build and interact with zkSync Era.

    Hardhat Plugins

    Explore Hardhat plugins for your Solidity and Vyper apps.

    Tutorials

    Cross-chain vote

    Use L1-L2 messages to cast a vote from Ethereum to zkSync Era.

    Multisig with AA

    Learn how to create a native multisig smart account on zkSync Era.

    Custom Paymaster

    Build your own paymaster to pay gas fees with ERC20 tokens.

    Other Tools

    zkSync Era Portal

    Bridge, deposit, and withdraw ERC20 tokens.

    Block Explorer

    Interact with zkSync Era blockchain.

    ZK Credo Block explorer Wallet portal GitHub Discussions Ecosystem

    Made with ❤️ by Matter Labs