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Build with MetaMask

A suite of developer tools to empower dapp developers to build innovative experiences for the most powerful, crypto-native users on MetaMask

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Build with MetaMask

  • Integrate with MetaMask wallet

    • MetaMask SDK

      Seamless, reliable, and customizable connection to the browser extension and mobile clients.

      Documentation

    • Multichain API

      Connect dapps to users’ Ethereum and non-EVM accounts

      Documentation

  • Explore smart accounts and embedded wallets

    • Smart Accounts Kit

      Instantly onboard users through smart accounts portable with MetaMask, redesign gas, build with permissions-first delegations.

      Learn more

    • Embedded Wallets

      Design supercharged on-chain experiences with Embedded Wallets — instant setup, minimal friction, endless customizability.

      Documentation

  • Run dapps faster

    • Managed Nodes

      Scale your dapp with Infura’s industry-leading, cloud-based node services.

      Documentation

    • Platform APIs

      Simplify development and boost performance with the APIs powering MetaMask’s most popular features.

      Documentation

  • Customize MetaMask for any dapp and protocol

    • Snaps

      Add new functionality for MetaMask, and add support for any protocol in EVM and non-EVM networks.

      Documentation

Develop with MetaMask

A comprehensive set of developer tools, products and services for onboarding and engaging with MetaMask users.

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A comprehensive set of developer tools, products, and services for onboarding and engaging with MetaMask users.

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Case studies

Case studies

How ecosystem leaders built top projects with MetaMask Developer tools
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Start building with a free Linea mainnet node

Start building with a free Linea mainnet node

Deploy your smart contract on Linea’s EVM-equivalent L2 for free.
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Release notes

  • MetaMask Snaps

    View full note
    v170.0.0
    26 October 2026
    • Fixed
      @metamask/snaps-controllers 22.0.1
      • Prevent concurrent calls to start Snaps (#4164)
    • Removed
      @metamask/snaps-execution-environments 11.3.3
      • Remove support for executors running multiple Snaps (#4165)

  • MetaMask SDK

    View full note
    v117.0.0
    25 March 2026
    • Changed
      @metamask/sdk 0.34.1
      • Mark the package as deprecated in the README and direct consumers to MetaMask Connect migration docs and successor packages.
    • Changed
      @metamask/sdk-analytics 0.0.6
      • Mark the package as deprecated in the README and direct consumers to MetaMask Connect migration docs and successor packages.
      • fix: missing export of esmodule on sdk-analytics (#1334)
    • Changed
      @metamask/sdk-communication-layer 0.33.2
      • Mark the package as deprecated in the README and direct consumers to MetaMask Connect migration docs and successor packages.
    • Changed
      @metamask/sdk-install-modal-web 0.32.2
      • Mark the package as deprecated in the README and direct consumers to MetaMask Connect migration docs and successor packages.
      • feat: adding mobile wallet protocol (#1346)
      • Release 110.0.0 (#1235)
    • Changed
      @metamask/multichain-sdk 0.0.1
      • Mark the package as deprecated in the README and direct consumers to MetaMask Connect migration docs and successor packages.
    • Changed
      @metamask/sdk-multichain-ui 0.0.1
      • Mark the package as deprecated in the README and direct consumers to MetaMask Connect migration docs and successor packages.
    • Changed
      @metamask/sdk-react 0.33.2
      • Mark the package as deprecated in the README and direct consumers to MetaMask Connect migration docs and successor packages.
    • Changed
      @metamask/sdk-react-native 0.3.13
      • Mark the package as deprecated in the README and direct consumers to MetaMask Connect migration docs and successor packages.
      • refactor: replace qr-code-styling with smaller library (#1129)
    • Changed
      @metamask/sdk-react-ui 0.29.3
      • Mark the package as deprecated in the README and direct consumers to MetaMask Connect migration docs and successor packages.

  • Wallet / Multichain API

    View full note
    v0.15.0
    10 June 2026
    • Added
      • Add ERC-7715 execution permission methods: wallet_requestExecutionPermissions, wallet_getGrantedExecutionPermissions, and wallet_getSupportedExecutionPermissions, along with the ExecutionPermission, ExecutionPermissionRule, ExecutionPermissionRequest, and ExecutionPermissionResponse schemas (#311)
    • Changed
      • build(deps): Bump node-fetch to 2.6.7, ansi-regex to 3.0.1, braces to 3.0.3, semver to 5.7.2, ws to 7.5.10(#235)
      • Update multichain Scope properties (#295)
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