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MetaMask Embedded Wallets

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Integrate MetaMask Embedded Wallets (formerly Web3Auth) to enable instant, secure, and seamless wallet onboarding for your users on Polygon — with no additional code required.

MetaMask Embedded Wallets lets users sign in with familiar logins (Google, Apple, Discord, etc.) and instantly creates a non-custodial wallet connected to Polygon.
It’s fast, simple, and fully managed through the MetaMask Dashboard.

Why Use MetaMask Embedded Wallets on Polygon?

  • Instant onboarding: Use OAuth providers like Google or Apple for quick user authentication
  • Simple configuration: Set up Polygon once through the dashboard
  • Non-custodial: Users retain full control of their private keys
  • Cross-platform support: Works on web, mobile, and game engines
  • Web2 - friendly UX: Familiar login and onboarding flows

Key Features

  • External Wallet Aggregator: Integrates SSO logins with existing crypto wallets (e.g. MetaMask), compatible with EVM and Solana.
    🔗 Docs

  • Flexible Authentication: Supports Google, Facebook, X, passwordless email, and custom OAuth2.0, enabling frictionless Web2-to-Web3 onboarding.
    🔗 Docs

  • Group Connections: Link multiple SSOs using a shared unique ID (e.g. same email) so users can access the same wallet via different logins.
    🔗 Docs

  • Wallet Pregeneration: Create wallets pre-registration using unique identifiers (e.g. email) to pre-fund for airdrops or bonuses.
    🔗 Docs

  • Multi-Factor Authentication: Enforce additional security layers like OTPs or secondary SSOs for sensitive use cases.
    🔗 Docs

  • Cross-Platform SDKs: Available for React, Vue, JavaScript, Android, iOS, React Native, Flutter, Unity, and Unreal—users access the same wallet across devices.

  • Native Smart Accounts: Enable gas sponsorships, batch/automated transactions, spending caps, and automatic paymaster/bundler setup (Infura + Pimlico).
    🔗 Docs

  • UI Flexibility: Choose between prebuilt white-labelled UI or headless SDK for full customization and brand control.
    🔗 Docs

1. Dashboard Configuration (No Code Required)

All setup happens inside the MetaMask Embedded Wallets Dashboard — no SDK changes or code edits are required.

Steps

  1. Go to the MetaMask Embedded Wallets Dashboard.
  2. Select your project or create a new one.
  3. Navigate to the Chains tab.
  4. Search for Polygon.
  5. Save your configuration.

✅ Once enabled, all MetaMask Embedded Wallets SDKs (React, Vue, JavaScript) will automatically connect to Polygon — no code updates needed.

3. Multi-Platform SDKs

MetaMask Embedded Wallets supports every major developer environment — so your dApps, mobile apps, and games can all connect seamlessly to Polygon.

Platform SDK Documentation
React docs.metamask.io/embedded-wallets/sdk/react
Vue docs.metamask.io/embedded-wallets/sdk/vue
JavaScript docs.metamask.io/embedded-wallets/sdk/js
Node.js docs.metamask.io/embedded-wallets/sdk/node
Android docs.metamask.io/embedded-wallets/sdk/android
iOS docs.metamask.io/embedded-wallets/sdk/ios
React Native docs.metamask.io/embedded-wallets/sdk/react-native
Flutter docs.metamask.io/embedded-wallets/sdk/flutter
Unity docs.metamask.io/embedded-wallets/sdk/unity
Unreal Engine docs.metamask.io/embedded-wallets/sdk/unreal

4. Connecting to Polygon

After enabling Polygon on the dashboard, MetaMask Embedded Wallets handles all connection logic automatically.

For JS based SDKs (React, Vue, JS & Node)

The wallet connects to Polygon using the chain configuration you set in the dashboard.
No developer setup required — the provider is pre-configured and ready to use.

For Mobile & Gaming SDKs (Android, iOS, Flutter, Unity, Unreal)

These SDKs expose a user’s private key securely. Developers can use it with their preferred blockchain library (e.g., ethers.js, web3j, or engine-native signing tools) to interact with Polygon RPCs.

Navigate to the dedicated documentation for Polygon on MetaMask Embedded Wallets docs.

Learn More