Scala 3
Language
4
Networks
Alpha
Status
About Fukuii
Fukuii is a multi-network Ethereum execution layer client built in Scala 3 by Chippr Robotics LLC. It provides native Proof-of-Work consensus for Ethereum Classic and Mordor, and pairs with any consensus client via Engine API V1–V4 for post-Merge Ethereum. One binary supports four networks: ETC mainnet, Mordor testnet, Sepolia, and ETH mainnet. The primary ETC client for the Olympia era, with SNAP sync, signed Docker images on GHCR, and JSON-RPC + MCP support.
Key Features
SNAP, fast, and regular sync for ETC and Mordor
Engine API V1–V4 — Sepolia validated, ETH mainnet ready
Compatible with all major consensus clients
Signed Docker images on GHCR
JSON-RPC, Engine API, and MCP support
Ready to Get Started?
Start using Fukuii today and experience the power of decentralized applications on Ethereum Classic.