Build on Ethereum Classic
Full EVM compatibility means you can use familiar Ethereum tools like Hardhat, Foundry, and Remix. Deploy your Solidity contracts to a network that values immutability and code is law.
Chain ID
61
Testnet ID
63
Block Time
~13 seconds
EVM Version
Shanghai
Consensus
Proof of Work
Network Configuration
Add ETC to your wallet or configure your development environment
Ethereum Classic
Production Network
Mordor Testnet
Development & Testing
Recommended Tools
Industry-standard development tools that work seamlessly with ETC
Hardhat
Ethereum development environment for compiling, deploying, testing, and debugging smart contracts.
Foundry
Blazing fast, portable, and modular toolkit for Ethereum application development written in Rust.
Remix IDE
Browser-based IDE for Solidity development with built-in compiler, debugger, and deployment tools.
ethers.js
Complete Ethereum library and wallet implementation in JavaScript/TypeScript.
Viem
TypeScript interface for Ethereum with a focus on type safety and developer experience.
OpenZeppelin
Library of secure, audited smart contract templates including ERC-20, ERC-721, access control, and more.
Node Clients
Run your own Ethereum Classic node for maximum decentralization
Fukuii
RecommendedRecommended — Purpose-built for ETC, the only ETC-native client. Modern Scala 3 architecture with PoW consensus and mining capabilities. The primary and long-term supported client for Ethereum Classic in the post-Olympia world.
Core-Geth
Maintained — Established go-ethereum fork with all known security patches applied for the Olympia transition. Maintained through the upgrade period as the network transitions to Fukuii as the primary client.
Learning Resources
Tutorials, documentation, and guides to help you get started
EthereumClassic.com
Ethereum Classic learning resources with protocol documentation and guides.
officialSolidity Documentation
Official Solidity language documentation with tutorials and reference.
officialEIPs (Ethereum Improvement Proposals)
Standards and specifications for Ethereum, including token standards used on ETC.
standardsECIPs (Ethereum Classic Improvement Proposals)
Ethereum Classic specific protocol improvements and standards.
standardsCore-Geth Documentation
Documentation for the official ETC node client.
officialChainlist
Full list of ETC mainnet RPC endpoints with one-click wallet configuration.
referenceReady to Build on ETC?
Start with our getting started guide and deploy your first smart contract on Ethereum Classic in minutes.