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Use the Wallet Adapter

Solana's Wallet Adapter is the standard way for Solana dapps to discover and connect to wallets. MetaMask implements the Wallet Standard, so it works with the Wallet Adapter out-of-the-box.

This guide shows you how to set it up with MetaMask in a React dapp. You can also use the create-solana-dapp CLI tool to generate a new project with the Wallet Adapter built in.

Prerequisites​

  • Node.js version 19 or later
  • A package manager such as npm, Yarn, pnpm, or bun
  • A React or Next.js project

Steps​

1. Install dependencies​

Install MetaMask Connect Solana and the Wallet Adapter packages:

npm install @metamask/connect-solana \
  @solana/web3.js                    \
  @solana/wallet-adapter-base        \
  @solana/wallet-adapter-react       \
  @solana/wallet-adapter-react-ui    \
  @solana/wallet-adapter-wallets

2. Create the Solana provider​

Create a SolanaProvider component that initializes MetaMask Connect Solana and wraps the Wallet Adapter providers:

components/SolanaProvider.tsx
'use client';

import React, { FC, ReactNode, useEffect, useMemo } from 'react';
import { ConnectionProvider, WalletProvider } from '@solana/wallet-adapter-react';
import { WalletAdapterNetwork } from '@solana/wallet-adapter-base';
import { WalletModalProvider } from '@solana/wallet-adapter-react-ui';
import { clusterApiUrl } from '@solana/web3.js';
import { createSolanaClient } from '@metamask/connect-solana';

import '@solana/wallet-adapter-react-ui/styles.css';

interface SolanaProviderProps {
  children: ReactNode;
}

export const SolanaProvider: FC<SolanaProviderProps> = ({ children }) => {
  const network = WalletAdapterNetwork.Devnet;
  const endpoint = useMemo(() => clusterApiUrl(network), [network]);

  useEffect(() => {
    createSolanaClient({
      dapp: {
        name: 'My Solana DApp',
        url: window.location.origin,
      },
    });
  }, []);

  return (
    <ConnectionProvider endpoint={endpoint}>
      <WalletProvider wallets={[]} autoConnect>
        <WalletModalProvider>{children}</WalletModalProvider>
      </WalletProvider>
    </ConnectionProvider>
  );
};

Calling createSolanaClient() registers MetaMask with the Wallet Standard registry, so MetaMask appears as a connection option in the wallet modal — even if the user doesn't have MetaMask installed.

3. Add the provider to your root layout​

Wrap your application with SolanaProvider so all components can access the wallet context:

import './globals.css';
import '@solana/wallet-adapter-react-ui/styles.css';
import { SolanaProvider } from '@/components/SolanaProvider';

export default function RootLayout({
  children
}: Readonly<{
  children: React.ReactNode;
}>) {
  return (
    <html>
      <body>
        <SolanaProvider>{children}</SolanaProvider>
      </body>
    </html>
  );
}

4. Add a connect button​

Use the Wallet Adapter's WalletMultiButton component to add a connect button to your dapp:

components/ConnectWallet.tsx
'use client';

import { WalletMultiButton } from '@solana/wallet-adapter-react-ui';

export const ConnectWallet = () => {
  return <WalletMultiButton />;
};

The button automatically displays a wallet selection modal that includes MetaMask.

Next steps​

See how to send a legacy transaction and a versioned transaction.

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