Send EVM and Solana transactions

Handle EVM and Solana transactions in your JavaScript dapp. With MetaMask Connect, you can:

• Send transactions on EVM networks and Solana in sequence, without having to switch networks.
• Track transaction status in real time.
• Estimate gas costs.
• Handle transaction errors.
• Manage complex transaction patterns.

Initialize MetaMask Connect

import { createMultichainClient } from '@metamask/connect-multichain';

const multichainClient = createMultichainClient({
  dapp: {
    name: "Metamask Connect Multichain Example",
    url: window.location.href,
    iconUrl: "https://mydapp.com/icon.png" // Optional
  },
  api: {
    supportedNetworks: {
      'eip155:1': 'https://mainnet.infura.io/v3/YOUR_INFURA_API_KEY', // Ethereum Mainnet
      'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp': 'https://api.mainnet.solana.com', // Solana Mainnet
    },
  },
})

await multichainClient.connect()

Send an EVM transaction

const provider = multichainClient.getProvider();

await provider.request({
  chain: 'eip155:1',
  method: 'eth_sendTransaction',
  params: [...]
});

Send a Solana transaction

const provider = multichainClient.getProvider();

await provider.request({
  chain: 'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp',
  method: 'solana_sendRawTransaction',
  params: [...],
});