Westend’s Polka-VM now on Subscan

Introduction

Westend now supports Polka-VM compatibility, bringing Ethereum-style interactions to Polkadot’s test network. This integration introduces Polka-VM transactions, smart contract execution, ERC-20 token support, NFT tracking, and smart contract verification, all now visible and accessible via Subscan.

Westend serves as the testnet for Polkadot, allowing developers to experiment and deploy features in a real environment before launching on mainnet. With Polka-VM functionality available, Westend enables teams to simulate Ethereum dApps and test smart contracts using familiar tools, but within the Polkadot ecosystem.

The first version of Polka-VM has already been developed and successfully deployed on **AssetHub Westend. Users are encouraged to test and explore its capabilities. Meanwhile, ongoing work is focused on refining the commercial version, and a fully open-source release is planned for May**, enabling broader access and contribution.

Subscan further enhances this experience by providing an intuitive interface to explore all Polka-VM-related activities. Additionally, Polka-VM-related API services are available, allowing direct programmatic access to transaction, token, and contract data.

Polka-VM Transactions: A Seamless Experience

https://assethub-westend.subscan.io/evm_transaction

With Polka-VM support, Westend allows Ethereum-style transactions directly on the network. Users can transfer assets, interact with smart contracts, and simulate decentralized applications.

Subscan makes it easy to monitor these activities by displaying transaction hashes, sender and recipient addresses, execution status, and gas fee details — offering full visibility into the Polka-VM activity happening on-chain.

Smart Contracts & Verification

https://assethub-westend.subscan.io/contract_dashboard

Smart contracts written in Solidity can be deployed and tested directly on Westend. This opens the door for developers to validate contract behavior in a real-time environment without risking real assets.

https://assethub-westend.subscan.io/contract_dashboard?tab=verified

Subscan supports detailed contract tracking and now includes Smart Contract Verification.

https://assethub-westend.subscan.io/account/0xb2bf0bf26a4e98a6aee1484b3bdaf50e3fb4a346?tab=contract

Verified contracts show a green checkmark and display key information like contract name, compiler version, Polka-VM version, and optimization flags.

https://assethub-westend.subscan.io/account/0xb69ff1eb70166c8b0981d3a0e19723e99717217a?tab=contract

Unverified contracts are marked with a ‘-’ symbol, and developers can submit a verification request through Subscan to publish source code for transparency.

This verification process builds trust, making it easier for developers and auditors to understand what the contract does and how it behaves.

ERC-20 Token Compatibility

Westend also supports the ERC-20 standard, allowing for seamless testing of token interactions. Developers can deploy tokens, simulate transfers, and check balances across test accounts.

Using Subscan, token holders and developers can view token metadata, contract addresses, holder counts, and transaction histories. This makes it easier to debug token behavior ahead of a mainnet launch.

NFT Tracking with ERC-721

Polka-VM integration on Westend includes support for the ERC-721 standard, enabling NFT creation and testing in a sandbox environment.

Subscan offers full visibility into NFT token movements, including token IDs, contract addresses, and transfer records. While Westend is not designed for production NFT marketplaces, it provides a safe space to simulate and audit these use cases.

Conclusion

With Polka-VM now live on Westend, developers can test smart contracts, token logic, and NFT interactions using familiar Ethereum tooling — while benefiting from Polkadot’s underlying infrastructure.

Through Subscan, all Polka-VM activity is transparent and easy to navigate, from transactions and token transfers to contract verification. API access is also available, enabling deeper integrations and automated monitoring tools.

Whether you’re testing a DeFi protocol, NFT minting logic, or new tokenomics — Westend with Polka-VM and Subscan is the ideal place to start.

Start building today, and prepare for mainnet success.