MEV-Boost is an implementation of proposer-builder separation (PBS) built by Flashbots for proof of stake Ethereum. Validators running MEV-Boost maximize their staking reward by selling blockspace to an open market of builders.

MEV-Boost is free, open-source, neutral software built with love, for the community. For information on MEV-Boost software and roadmap, see the MEV-Boost Repository.

MEV-Boost Quickstart

1. Install the latest version of MEV-Boost
2. Connect MEV-Boost to desired MEV-Boost relays:
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./mev-boost -mainnet -relay-check -relays relay1,relay2

1. Remember to use the appropriate network flag for the specific network and relay URL, e.g. -mainnet, -sepolia or -goerli.
3. Configure a consensus client. Detailed instructions are available on the MEV-boost testing wiki, and guides for connecting the client to mev-boost can be found in the consensus client compatibility table below.
4. Confirm that the setup works by calling the data API to see your validator registration.

Relay List*

For a comprehensive list of relay URL endpoints by network and operator maintained by the community, please refer to:

• Ethstaker URL
• Lido URL

Flashbots Relay URLs

Consensus Client Compatibility 👫

MEV-Boost is designed to be compatible with the standard Ethereum Builder API. This means it is compatible with all consensus and execution clients. You can find guides for installing with your favorite consensus client below!

MEV-Boost Updates 🎯

We are writing regular updates about MEV-Boost development, adoption and community, for anyone interested in keeping up with our progress:

Builder Quickstart

External builders can submit blocks to the Flashbots Relays on Mainnet, Goerli and Sepolia networks.

See here for more details:

• Flashbots Block Builders Official Documentation
• Relay API documentation - Block Builder API
• The Block Builder Self-Help Group forum
• Boost-geth-builder - example builder implementation built by Flashbots

FAQ ⁉️

Node Operators

Block Builders

This world is confusing, but we are in this together ⚡ If you have additional questions, please ask on the Forum, GitHub or Discord!

Resources ⛵

• MEV-Boost documentation is live on docs.flashbots.net.
• For a deep dive on PBS, see The Hitchhiker's Guide to Ethereum.
• To understand the benefits and risks of running MEV-Boost, see Why run MEV-Boost?.
• If you are looking for an awesome guide on setting up mev-boost, see this post.
• For additional installation support, we recommend EthStaker Guide for Installing MEV-Boost.
• https://www.mevboost.org - overview of relays and builders which produced recent blocks
• https://mevboost.pics - charts and dashboards about the mev-boost and builder ecosystem
• https://boost-relay.flashbots.net - Flashbots mainnet mev-boost relay

Assets

MEV-Boost logo is provided with CC0 license courtesy of @lekevicius. Download here.

* Users of this informational material are responsible for determining any applicable legal restrictions on any direct or derivative use of this information, including complying with applicable economic sanctions laws within their home jurisdictions.  Please also see Github’s Trade Controls page. Flashbots makes no representation or warranty as to any Relay Operator or other entity’s compliance with economic sanctions or other laws and regulations.