Kusama
PREVIEW RELEASE LIVE

SMART CONTRACTS
ON KUSAMA

Ethereum-compatible smart contracts are live on Kusama. Deploy with familiar tools like Remix and Hardhat. Break things. Build the future.

START BUILDING

QUICK START

TESTNET (RECOMMENDED)

Deploy on Paseo testnet for the latest stable features. Perfect for testing and development.

Network:Paseo Passet Hub
Status:Most up-to-date

KUSAMA MAINNET

Deploy to live environment on Kusama Hub. Real tokens, real consequences.

Chain ID:420420418
Para ID:1000

Deploy with Hardhat

# Install dependencies
npm install --save-dev hardhat @nomiclabs/hardhat-ethers ethers
# Configure hardhat.config.js
networks: { kusama: { url: "https://kusama-asset-hub-eth-rpc.polkadot.io", chainId: 420420418 } }
# Deploy
npx hardhat run scripts/deploy.js --network kusama

NETWORK DETAILS

KUSAMA ENDPOINTS

RPC Endpoint
https://kusama-asset-hub-rpc.polkadot.io/
ETH-RPC Endpoint
https://kusama-asset-hub-eth-rpc.polkadot.io
Block Explorer
blockscout-kusama-asset-hub.parity-chains-scw.parity.io

TOOLS & SUPPORT

Compatible Tools

RemixHardhatMetaMaskOpenZeppelinweb3.jsviem

Get Help

Discord:#solidity-smart-contracts
GitHub:Report bugs directly
Telegram:Best effort support

KNOWN ISSUES

This is a preview release. Some limitations exist while we optimize for full compatibility.

Wallet Compatibility

Some Ethereum wallets may show "Invalid transaction" errors. Use Hardhat for deployment and MetaMask for dApp interaction.

Contract Size Limits

Current compiler produces larger bytecode than typical EVM. We're actively optimizing this.

Your feedback helps us improve. Test, break things, and let us know what you find.