Start Building

Set up Remix, connect StarKey Wallet, and deploy your first smart contract on SupraEVM.

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Step 1: Open Remix IDE

Visit https://remix.ethereum.org On the left sidebar, click Deploy & Run Transactions Click Customize this list Select Injected Provider – StarKey Wallet Ensure your wallet is connected to Supra MultiVM A confirmation modal will appear in StarKey Wallet.

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Step 2: Create a New Solidity File

Click the File Explorer icon Click New File Name it:

SimpleSupraStorage.sol

Paste the following contract:

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract SimpleSupraStorage {
    uint256 public storedData;

    function set(uint256 x) public {
        storedData = x;
    }

    function get() public view returns (uint256) {
        return storedData;
    }
}

What this contract does:

• storedData: stores one number

• set(x): updates the stored number

• get(): returns the stored number

Perfect for learning SupraEVM deployment flow.

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Step 3: Compile the Contract

Click the Solidity Compiler tab Choose compiler version: 0.8.x Click Compile SimpleSupraStorage.sol A green checkmark means success.

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Step 4: Deploy to SupraEVM MultiVM

Open Deploy & Run Transactions Under Environment, choose:

Injected Web3 (StarKey Wallet)

• Make sure StarKey Wallet is switched to: ✔ Supra MultiVM Testnet ✘ Not Ethereum, BNB, or any other network

Click Deploy Confirm the transaction in StarKey Wallet

Your contract is now deployed on SupraEVM.

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Step 6: Verify Transactions on the Explorer

Every action (deploy, set, get) is recorded on Supra’s MultiVM Explorer. Paste your transaction hash or contract address into:

> Supra MultiVM Block Explorer <

You can view:

• Gas used

• Function calls

• Storage changes

• Contract creator

• Execution results