Introduction

Key Features for Builders

As a Signet Block Builder, you construct blocks by selecting transactions and bundles, then submit those blocks to Ethereum.

• Direct Sequencer Access: Work directly with the Signet sequencer in a round-robin slot system, unlike traditional PBS auctions.
• Capture MEV and Sequencer Fees: Directly extract value from transactions within your blocks.
• Fair Block Production: Round-robin sequencing ensures equitable opportunities for all builders.

Quickstart

To get started as a block builder:

1. Clone and build the Signet builder repository
2. Set up authentication to connect to the sequencer
3. Install and run a node to start building blocks

Documentation Structure

This documentation is organized to get you building quickly:

Running a Builder

Everything you need to get a builder up and running:

• Clone and Build: Get the Signet builder source code and compile it
• Authentication: Configure OAuth credentials for sequencer access
• Install and Run a Node: Deploy and operate your builder node
• Environment Variables: Configure your builder for different networks

Customizing a Builder

Advanced topics for customizing block construction:

• Getting Transactions and Bundles: Access the transaction pool and bundle relay
• Getting a Sequencer Signature: Obtain co-signatures for your blocks
• Bundle Guarantees: Understand bundle execution guarantees
• Submitting Blocks: Submit your blocks to Ethereum via EIP-4844

Next Steps

Start with Clone and Build to get your builder environment set up.