flashbots/mev-boost
MEV-Boost allows Ethereum validators to source high-MEV blocks from a competitive builder marketplace observed · 2026-08-28
Health v2 · maintenance only
82/100
- Activity 90
- Release rhythm 60
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 50.5
- age_days: 1750
- days_rel: 191
- days_push: 64
- n_releases_24m: 5
Adoption not part of the score
1437 stars · 290 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
MEV-Boost is open-source middleware (a sidecar) for Ethereum proof-of-stake validators that connects consensus clients to a competitive marketplace of external block builders via relays. It implements proposer-builder separation (PBS), letting validators source high-MEV blocks and increase staking rewards.
Use cases
- increase ethereum validator staking rewards by selling blockspace to builders
- run mev-boost sidecar alongside a beacon node
- connect a consensus client to multiple block-building relays
- implement proposer-builder separation for a pos ethereum node
- source high-mev blocks for block proposals
- configure relays for mainnet or testnet validator setups
When to choose
- you operate an ethereum pos validator or node and want to maximize block proposal revenue
- you want a client-agnostic sidecar compatible with any consensus client via the Builder API
- you need to connect to multiple relays for competitive block sourcing
When to avoid
- you run a non-Ethereum blockchain or proof-of-work setup
- you want to avoid trusting external relays and builders and prefer building blocks locally
- you need a full validator or execution client - mev-boost is only a sidecar
Facets
service · maturity active
middleware api-framework http-server blockchain blockchain infrastructure-as-code developer-tools go self-hosted ethereum mev pos validator pbs block-builder relay sidecar staking cryptocurrency linux macos docker
4 sources
- readme: https://github.com/flashbots/mev-boost · fetched 2026-08-28 · 3b24d8bfa0cd
- homepage: https://boost.flashbots.net · fetched 2026-08-29 · f29365a8ea8f
- site_page: https://boost.flashbots.net/mev-boost-status-updates/mev-boost-documentation-is-live · fetched 2026-08-29 · 3330f82e986f
- site_page: https://docs.flashbots.net/flashbots-mev-boost/introduction · fetched 2026-08-29 · b2dd8b53dcf2
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| flashbots/mev-boost | main | 82 |
For agents
markdown · JSON · MCP: product_card(name="flashbots/mev-boost")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem