Core-Geth
RecommendedGoA go-ethereum derivative maintained for Ethereum Classic, released from the ethereumclassic community organization. The v1.12.x line went 21 months without security maintenance; Core-Geth v1.13.0, prepared by White B0x, fixes six CVEs, one of them exploited against ETC mainnet bootnodes in March 2026, and moves the client to Go 1.26.
Features
- Snap and full sync, with archive mode
- JSON-RPC, WebSocket and GraphQL APIs
- EVM tracing and debugging
- Built-in Etchash mining support
- MESS (ECBP-1100) chain-selection defense, on by default
- Build attestation on every release file
Quick Start
Install
docker pull ghcr.io/ethereumclassic/core-geth:latestConfiguration
Run with --classic, or no network flag, for Ethereum Classic mainnet, and --mordor for the Mordor testnet.
Fukuii
ETC-nativeEnterpriseScalaEthereum Classic's first native client — an EVM execution client in Scala 3 LTS on Pekko Typed Actors, running on the JVM. One binary runs several networks at once in one JVM process, each isolated with its own state, its own metrics registry, and its own configuration; a further network is configuration, not a new client.
Features
- Several networks at once in one JVM process, each fully isolated
- Consensus selected per deployment: native Proof-of-Work for ETC mainnet and Mordor
- Proof-of-Stake with a built-in consensus layer, or an external client over the Engine API V1–V4
- SNAP, fast, and regular sync; JSON-RPC, GraphQL, and an MCP server exposing node state to AI agents
- JVM-native end to end for institutions already on the JVM: JFR, async-profiler, JMX and heap dumps work as on any JVM process, with no foreign-language bridge
- Prometheus metrics, Grafana dashboards, and liveness and readiness endpoints in the binary
- Apache 2.0, with Cosign-signed build provenance and a CycloneDX SBOM on release artifacts
Quick Start
Configuration
Select the network with --network=etc for ETC mainnet or --network=mordor for the ETC testnet. Requires a current JDK LTS (25); the Docker image bundles one.
ETC Compatibility Plugins
A plugin adds Ethereum Classic chain support into an existing Ethereum client’s execution layer rather than maintaining a full fork. It is not a client implementation and carries no mining or Proof-of-Work consensus, so plugins serve non-mining infrastructure: exchanges, RPC providers, block explorers, indexers, and archive nodes on whichever execution environment an operator already runs.
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Erigon
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Ethrex
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Go-Ethereum
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Nethermind
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