Deploy a Smart Contract on MANTRA Chain

Learn how to deploy your first smart contract on MANTRA Chain using standard EVM tools

MANTRA Chain is fully EVM-compatible, which means you can deploy Solidity smart contracts using familiar tools like Hardhat, Foundry, or Remix.

Full EVM Compatibility: Deploy Solidity smart contracts using standard EVM tooling - no need to learn new languages!

Prerequisites

Before deploying, make sure you have:

• A funded wallet with MANTRA tokens for gas fees
• Your contract compiled and ready to deploy
• Network configuration set up

Network Configuration

Testnet (DuKong)

• RPC URL: https://evm.dukong.mantrachain.io
• Chain ID: 5887
• Explorer: explorer.dukong.io

Mainnet

• RPC URL: https://evm.mantrachain.io
• Chain ID: 5888
• Explorer: blockscout.mantrascan.io

Method 1: Using Hardhat

Hardhat is a popular development environment for Ethereum software.

Setup

1. Install Node.js (version 18.0 or higher recommended)

2. Create a new project:

   mkdir my-project
   cd my-project
   npm init -y
   npm install --save-dev hardhat
   npx hardhat init
   

3. Configure Hardhat for MANTRA Chain by updating hardhat.config.js:

   require("@nomicfoundation/hardhat-toolbox");
   
   module.exports = {
     solidity: "0.8.23",
     networks: {
       mantra_mainnet: {
         url: "https://evm.mantrachain.io",
         chainId: 5888,
         accounts: process.env.PRIVATE_KEY ? [process.env.PRIVATE_KEY] : [],
       },
       mantra_testnet: {
         url: "https://evm.dukong.mantrachain.io",
         chainId: 5887,
         accounts: process.env.PRIVATE_KEY ? [process.env.PRIVATE_KEY] : [],
       },
     },
   };
   

Create Deployment Script

Create scripts/deploy.js:

const hre = require("hardhat");

async function main() {
  const MyContract = await hre.ethers.getContractFactory("MyContract");
  const myContract = await MyContract.deploy();
  
  await myContract.waitForDeployment();
  const address = await myContract.getAddress();
  
  console.log("Contract deployed to:", address);
  console.log("Explorer:", `https://explorer.dukong.io/address/${address}`);
}

main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });

Deploy

npx hardhat run scripts/deploy.js --network mantra_testnet

For more details, see our Hardhat guide.

Method 2: Using Foundry

Foundry is a fast, portable, and modular toolkit for Ethereum application development.

Setup

1. Install Foundry:

   curl -L https://foundry.paradigm.xyz | bash
   foundryup
   

2. Create a new project:

   forge init my-contract
   cd my-contract
   

Deploy with Forge

forge create src/MyContract.sol:MyContract \
  --rpc-url https://evm.dukong.mantrachain.io \
  --private-key $PRIVATE_KEY \
  --chain-id 5887

Using Scripts

Create script/Deploy.s.sol:

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

import {Script, console} from "forge-std/Script.sol";
import {MyContract} from "../src/MyContract.sol";

contract DeployScript is Script {
    function run() external {
        vm.startBroadcast();
        
        MyContract myContract = new MyContract();
        
        console.log("Contract deployed to:", address(myContract));
        
        vm.stopBroadcast();
    }
}

Deploy:

forge script script/Deploy.s.sol:DeployScript \
  --rpc-url https://evm.dukong.mantrachain.io \
  --private-key $PRIVATE_KEY \
  --broadcast \
  --chain-id 5887

For more details, see our Foundry guide.

Method 3: Using Remix

Remix is a web-based IDE that makes it easy to deploy contracts without local setup.

Steps

1. Go to Remix IDE
2. Create or import your Solidity contract
3. Compile your contract
4. Go to the “Deploy & Run” tab
5. Select “Injected Provider” (MetaMask)
6. Make sure MetaMask is connected to MANTRA Chain
   • Add MANTRA Chain network if needed:
     • Network Name: MANTRA Chain Testnet
     • RPC URL: https://evm.dukong.mantrachain.io
     • Chain ID: 5887
     • Currency Symbol: MANTRA
7. Deploy your contract

After Deployment

Verify Your Contract

After deployment, verify your contract on the block explorer. This allows others to view and interact with your contract source code.

See our Verifying Contracts guide for detailed instructions.

Interact with Your Contract

Once deployed, you can:

• View your contract on the block explorer
• Interact with it using the explorer’s contract interaction features
• Build a frontend application to interact with your contract

Next Steps

• Learn about using precompiles to interact with MANTRA Chain’s unique features
• Explore EVM development on MANTRA Chain
• Check out our architecture documentation to understand MANTRA Chain’s capabilities
• Join our Discord community for support

Resources

• Deploying Contracts Guide - Detailed deployment documentation
• EVM Getting Started - Complete EVM development guide
• Network Details - Network information and endpoints