ethrex

The latest Ethrex Community Call is now available. Watch the session to hear about recent work, key insights, and what lies ahead.

Join us tomorrow for the #10 Ethrex Community Call, where we will share the latest updates, ongoing work, and what is coming next for the project. The session will be streamed live on X at 2:30 PM UTC.

When we announced BAL Devnet 3 support, the tests were just starting. Today, ethrex is at 1040/1040 tests passing for 6 consecutive days. Only two EL clients at 100% right now.

Couldn’t make the Community Call? Watch the full recording below.

Ethrex Community Call tomorrow. Join us live on X at 2:30 PM UTC for updates, insights, and what’s ahead.

We just came back from an offsite and we started delivering again with @class_lambda in @ethereum. We were out and resting. It’s summer in the south so this is like july and august for europe or the US. Ethrex is now the second execution client only by a little bit. We just pushed some new code. We got many more ideas coming. We are integrating as always all this with the provers of @alignedlayer. We got many great news there with @rj_aligned about distribution and work around our zkVM! Mainnet performance: reth 33ms @ethrex_client 35 ms nethermind 57ms geth 76ms besu 118ms erigom 579ms

Full PR with architecture docs, contracts, and integration tests: github.com/lambdaclass/et…

We've been working with @kevaundray and @ladislaus0x from @ethereumfndn and @donnoh_eth from @l2beat on a proof of concept of EIP-8079 (native rollups) using @ethrex_client. Native rollups reuse Ethereum's own execution to verify L2 state transitions. No ZK circuits, no fraud proofs, no complex proof systems to maintain. Every L1 upgrade is automatically inherited. Any bug in the verification is also a bug in Ethereum itself. The demo shows a full end-to-end native rollup: - L2 blocks settled to L1 via the EXECUTE precompile - L1→L2 deposit - Contract deployment and cross-layer calls - L2→L1 withdrawal with MPT proof claim - Blockscout verifying EXECUTE precompile calls on L1 Try it yourself. Instructions in the PR below.

Community Call recording is now available. Watch it below.

Join ethrex community call tomorrow at 2:30 UTC. We’ll be live on X sharing progress and upcoming plans.

Ethrex is a minimalist, stable, modular, fast, and ZK native implementation of the Ethereum protocol in Rust built from scratch in Rust by @class_lambda. A clean-room implementation with its own EVM (LEVM). First devnet, and we came prepared. hive.ethpandaops.io/#/group/bal-qu… github.com/lambdaclass/et…

Devnet-bal-3 launches tomorrow. Ethrex is the only execution client with all devnet-bal-3 EIPs fully implemented, including EIP-8037 (State Creation Gas Cost Increase), which no other client has shipped yet.

Last week, ethrex joined its first Ethereum devnet ever: devnet-bal-2. A few days later, Hive tests for devnet-bal-3 went live, and ethrex is already the most compliant execution client: ethrex: 900/1028 (87.5%) nimbus: 630 (61.3%) erigon: 626 (60.9%) nethermind: 585 (56.9%)

Happening today. The next ethrex community call starts at 2:30 PM (UTC). We’ll walk through recent progress and what’s ahead. Live on X.

A few weeks ago I said there was a seismic change in Ethereum's social layer about to happen. It's happening. Multiple big infrastructure players that most users don't know about are starting to collaborate and build together, doubling down on ETH and the Ethereum network. Follow @blockspaceforum to keep up with it. The biggest block builder (@titanbuilderxyz), the biggest relay (@ultrasoundmoney), @ETHGasOfficial, @Commit_Boost (38% network adoption), @QuasarBuilder, @primev_xyz, @nuconstruct, @blocknative, @fabric_ethereum, researchers from the @ethereumfndn, and many others are all coordinating. Many of us realized that they had to team up and work closely together to make our opinions stronger and speed up our ability to deliver. In the last 5 years @class_lambda built many of the most relevant zkVMs and Ethereum L2s. Last year we went all in on @ethereum L1. In a year we built @ethrex_client, one of the fastest production ready execution clients at about 60k lines of code. We're coordinating with big stakers and the MEV pipeline to grow its adoption while also shipping multiple products around it. We're building a new RISC-V zkVM with @alignedlayer and @3miLabs that I think will become a standard for L1 proving and @eth_proofs in the short term. We're working on @leanEthereum by building our own @ethlambda_lean client. We helped develop the @Commit_Boost sidecar that standardizes communication between validators and third party protocols. We're happy to have helped build a critical piece of software that is now running on 38% of the Ethereum network. We also started collaborating with @titanbuilderxyz on different things under @kubimensah's lead. Hopefully soon we'll be working closely with @alextes and @ultrasoundrelay too! There's more I want to share but can't yet. For now I can say that @class_lambda is part of the @blockspaceforum process and I'm very excited about what's coming. Keep an eye on what we will be doing, I promise it's gonna get interesting.

More details coming soon in a full blog post. PR: github.com/lambdaclass/et… 3/3

Before: curl -X POST localhost:8545 \ -d '{"jsonrpc":"2.0","method":"eth_blockNumber",...}' | jq '.result' After: eth.blockNumber 68943 Same result, way less ceremony. It also: • Resolves ENS out of the box • Supports 47 RPC methods (eth, debug, admin, net, web3, txpool) • Includes utils like toWei, keccak256, checksum tools • Works in scripts (ethrex repl -x) 2/3

Ethrex now ships with a built-in interactive REPL for Ethereum JSON-RPC. Query any Ethereum node directly from your terminal. No curl, no jq, no external tools. Just run: ethrex repl. Here’s a quick demo. 1/3

More details coming soon in a full blog post. PR: github.com/lambdaclass/et… 3/3

Before: curl -X POST localhost:8545 \ -d '{"jsonrpc":"2.0","method":"eth_blockNumber",...}' | jq '.result' After: eth.blockNumber 68943 Same result, way less ceremony. It also: • Resolves ENS out of the box • Supports 47 RPC methods (eth, debug, admin, net, web3, txpool) • Includes utils like toWei, keccak256, checksum tools • Works in scripts (ethrex repl -x) 2/3

Ethrex now ships with a built-in interactive REPL for Ethereum JSON-RPC. Query any Ethereum node directly from your terminal. No curl, no jq, no external tools. Just run: ethrex repl. Here’s a quick demo.