On March 27, 2023, Polygon zkEVM Mainnet Beta went live, bringing EVM-equivalent zero-knowledge scaling to Ethereum. With Ethereum at $1,715 and MATIC at $1.05, this launch opens a new frontier for developers seeking to deploy smart contracts with dramatically lower gas costs and higher throughput while maintaining full Ethereum security guarantees. This tutorial walks you through the architecture and deployment process for building on Polygon zkEVM.
The Objective
The goal of this tutorial is to understand the Polygon zkEVM architecture and learn how to deploy existing Solidity smart contracts to the network. Because zkEVM achieves full EVM equivalence, the process is remarkably straightforward for developers already familiar with Ethereum development. You will not need to rewrite your contracts, learn a new language, or adopt unfamiliar tooling. Everything you have built for Ethereum works on zkEVM.
Prerequisites
Before deploying to Polygon zkEVM, ensure you have the following tools and knowledge. You need a working understanding of Solidity and Ethereum smart contract development. Install Node.js version 16 or later, along with npm or yarn. You will need Hardhat or Foundry as your development framework. For wallet connectivity, MetaMask must be installed with a configuration for the Polygon zkEVM network. You will also need MATIC tokens on the zkEVM network to pay for gas fees—these can be bridged from Ethereum mainnet using the official Polygon zkEVM bridge.
Ankr provides publicly available RPC endpoints for Polygon zkEVM that you can use to connect your development environment. The RPC URL for the zkEVM mainnet is available through Ankr’s RPC service at ankr.com/rpc/polygon_zkevm. This geo-distributed infrastructure ensures low-latency connections from anywhere in the world, which is critical for development workflows that involve frequent contract interactions.
Step-by-Step Walkthrough
Start by configuring MetaMask for Polygon zkEVM. Open MetaMask, click “Add Network,” and manually enter the network details: the network name is Polygon zkEVM, the RPC URL is the Ankr endpoint, the chain ID is 1101, the currency symbol is ETH, and the block explorer URL points to the Polygon zkEVM explorer. Once configured, bridge some ETH from Ethereum mainnet to zkEVM using the official bridge at bridge.zkevm.polygon.technology.
Next, configure your Hardhat project. In your hardhat.config.js file, add the Polygon zkEVM network configuration with the Ankr RPC URL and your private key. The gas settings on zkEVM are significantly lower than Ethereum mainnet—typically 90 to 95 percent cheaper—so you can be generous with gas limits without worrying about cost.
Deploy your contracts exactly as you would on Ethereum. The deployment script does not need modification. Hardhat will compile your Solidity code, send the deployment transaction to the zkEVM network via the Ankr RPC, and return the deployed contract address. Verify your contract on the zkEVM block explorer using the standard verification process.
For testing, deploy to the zkEVM testnet first. The testnet uses a separate bridge and has faucet-available test tokens. This allows you to validate that your contracts behave correctly in the zkEVM environment before committing mainnet resources. Pay particular attention to gas estimation, as the zero-knowledge proof generation adds computational overhead that can affect gas calculations for complex operations.
Troubleshooting
If your deployment transaction fails with an out-of-gas error, increase the gas limit manually. The zkEVM gas estimation can be inaccurate for contracts with complex constructor logic. If you encounter issues with the RPC connection, try an alternative endpoint or check the Polygon status page for known issues. Bridge transactions between Ethereum and zkEVM can take 10 to 30 minutes to confirm, depending on mainnet congestion—this is normal and not a cause for concern.
Some developers report issues with contract verification on the block explorer. Ensure that your contract source code exactly matches the compiled bytecode, including any optimization settings. If verification fails, try with the flattened source file. For libraries, make sure to include all dependency source files in the verification payload.
Mastering the Skill
To truly master Polygon zkEVM development, explore the protocol’s unique capabilities. Study the batch submission and proof verification process to understand how your transactions achieve finality. Experiment with cross-chain messaging patterns that leverage the Ethereum-zkEVM connection for composability. Monitor the Polygon research blog for updates on performance improvements and new features. As the zkEVM ecosystem grows, developers who understand the underlying zero-knowledge architecture will be best positioned to build the next generation of scalable decentralized applications. The March 27, 2023, mainnet beta launch is just the beginning—the technology will continue to mature, and the opportunities for builders will only expand.
Disclaimer: This article is for educational purposes only and does not constitute financial advice. Smart contract development carries risks—always audit your code and test thoroughly before deploying to mainnet.
deployed my first contract on zkEVM using this guide. literally just changed the RPC endpoint, everything else was the same. EVM equivalence is real
can confirm, deployed a uniswap fork in 20 minutes. the EVM equivalence is real, not marketing. just point metamask at the new RPC and go
the vyper compiler issue from curve was a wake up call. zkEVM deploying standard solidity without rewrites is the real selling point here
Node.js 16+ and basic Solidity knowledge is all you need. the bar is lower than people think
the gas savings alone make this worth it for any contract getting regular traffic. eth mainnet fees are brutal for small deployments
the gas savings are compelling but prover throughput is still the bottleneck. batch finality can take hours during high load. not quite mainnet parity yet
gas_optimist the prover bottleneck is real though. batch finality can lag during high activity. savings only matter if your tx actually confirms in a reasonable window
used hardhat with the zkEVM RPC endpoint and my existing test suite passed on first try. rare W for L2 developer UX