Building for the Rayls Public Chain

Rayls is a public EVM chain built using Reth, the high-performance Ethereum execution client from Paradigm. Rayls is 100% EVM compatible, meaning any Ethereum contracts, tooling, or wallets work without modification.

This guide explains how to deploy, interact, and build on Rayls.

Key Properties

Feature	Detail
Execution Client	Reth (Rust-based Ethereum execution client)
Virtual Machine	EVM (fully compatible)
Address Format	Standard Ethereum `0x...` addresses
Gas Token	`USDgas`
JSON-RPC Compatibility	Fully aligned with Ethereum

No new tooling required. If it works on Ethereum, it works on Rayls.

Testnet Network Information

Network	Chain ID	RPC Endpoint	Explorer	Gas Token
Rayls Testnet	`123123`	`https://devnet-rpc.rayls.com`	`https://devnet-explorer.rayls.com`	`USDgas`

Tooling Compatibility

Tooling	Status
Foundry	✅ Supported
Hardhat	✅ Supported
Truffle	✅ Supported
Remix	✅ Supported (connect custom RPC)
Wagmi / Viem / Ethers.js	✅ Supported
WalletConnect	✅ Supported
Rabby / MetaMask / OKX Wallet	✅ Supported

Deploy using Foundry

forge create --rpc-url https://devnet-rpc.rayls.com --private-key <PRIVATE_KEY> src/MyContract.sol:MyContract

Deploy using Hardhard

hardhat.config.js:

module.exports = { networks: { rayls: { url: "https://devnet-rpc.rayls.com", accounts: [process.env.PRIVATE_KEY] } } };

Deploy:

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

Summary

Rayls is a Reth-powered EVM chain that supports standard Ethereum contract deployment and developer workflows.
If you know how to build on Ethereum, you already know how to build on Rayls.

No new languages.
No new frameworks.
Just deploy.