lambdaclass/ethrex

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Minimalist, stable, modular, fast, and ZK native implementation of the Ethereum protocol in Rust. L1 and L2 execution client.

Stars: 897
Forks: 229
Open beginner issues: 9
Indexed issues: 684
Avg merge: 1d 5h
Merged PRs (30d): 44

Dominant language: Rust
License: Apache-2.0
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 18, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

Beginner friendly Everything

Open All

9 beginner-friendly issues open

Rust 1.99-beta regression due to `global_asm!` section change Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

lambdaclass/ethrex#7246 · 1 comment · Opened Sep 1, 2026
chore(l1): tooling/repl and tooling/runner resolve to the workspace that disowns them Open

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

lambdaclass/ethrex#7107 · Opened Aug 4, 2026
L2 checkpoint regeneration can accumulate unbounded trie layers (same pattern as #7018) Open

L2

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

lambdaclass/ethrex#7026 · Opened Jul 23, 2026
make down-l2 is broken on macOS ($1 vs $$1, and sends SIGINT) Open

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

lambdaclass/ethrex#6912 · Opened Jun 25, 2026
Test higher batch sizes in full sync(2k, 4k, 8k). Open

performance syncing

Difficulty 1/5 Under an hour Newbie friendliness 72/100

lambdaclass/ethrex#6483 · Opened Apr 15, 2026
discv5: prune session_ips in cleanup_stale_entries Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

lambdaclass/ethrex#6404 · Opened Mar 26, 2026
Unused variable warnings in ethrex-crypto crate Open

tech debt

Difficulty 1/5 Under an hour Newbie friendliness 68/100

lambdaclass/ethrex#6381 · Opened Mar 18, 2026
fix(l1): discv5 FindNode should return local ENR for distance=0 Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

lambdaclass/ethrex#6030 · Opened Jan 26, 2026
chore(l2): add compile error if prover is compiled without any of `build_sp1` or `build_risc0` features, and also if both are enabled Open

L2

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

lambdaclass/ethrex#1812 · Opened Jan 27, 2025

lambdaclass/ethrex

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