sign-multichain-solana-transaction

name	sign-multichain-solana-transaction
description	Sign and send Solana transactions using the multichain client's invokeMethod. Covers signTransaction, signAndSendTransaction, signMessage, building transactions with @solana/web3.js, base64 encoding, mainnet/devnet scopes, and selective disconnect.

Sign Solana Transactions via Multichain Client

When to use

Use this skill when:

• Signing or sending Solana transactions through invokeMethod on a multichain client
• Building Solana transactions with @solana/web3.js and encoding them for the multichain API
• Signing Solana messages through the multichain client
• Selecting the correct Solana CAIP-2 scope (mainnet, devnet)
• Disconnecting only Solana scopes while keeping EVM sessions active

Workflow

Step 1: Connect with Solana scopes

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

const client = await createMultichainClient({
  dapp: { name: 'My DApp', url: window.location.href },
  api: {
    supportedNetworks: {
      ...getInfuraRpcUrls({ infuraApiKey: 'YOUR_INFURA_KEY', caipChainIds: [, ] }),
    },
  },
});

 client.(
  [
    ,
    , 
  ],
  [],
);