5 min read

Luganodes’ Pectra Validator Ops CLI Tool

Open Source Contributions

Published on

11 May, 2025

Introduction

Luganodes is excited to announce the release of our Pectra Validator Ops CLI Tool, designed to streamline Ethereum validator management following the Pectra upgrade. This powerful tool enables users to perform batch operations including withdrawal credential switching, consolidation, and both partial and full withdrawals from EL layer—all in a single transaction. Our solution has been independently audited by Quantstamp, ensuring security and reliability for all your validator management needs.

Batch Operations Overview and Features

With the advent of Pectra, validator operations such as switching, consolidation, and exits have become crucial aspects of validator management. However, in their current form, these operations can only be performed one at a time. Luganodes has developed a novel approach using EIP-7702 to enable bulk execution of these operations, with significant gas optimizations.

The Pectra CLI Validators Tool introduces three powerful batch operations for managing the validator lifecycle in the post-Pectra era.

Switch: Seamlessly update withdrawal credentials from 0x01 to 0x02 type for up to 200 validators in a single transaction. This enables automatic reward compounding and execution-layer triggered partial and full withdrawals using the withdrawal address.
Consolidate: Merge funds from multiple validators (up to 63 source validators) into a single target validator in one transaction, improving operational efficiency. The target validator can hold up to 2048 ETH; any surplus is automatically swept. Consolidation is performed in a single transaction and is fully compliant with EIP-7251.
Exit: Initiate partial or full validator withdrawals directly from the execution layer for up to 200 validators. This removes the dependency on validator keys—withdrawals can now be triggered by the withdrawal address itself.

Our smart contract implementation delivers exceptional gas efficiency through batched operations, significantly reducing transaction costs compared to executing operations individually. By combining multiple validator operations into a single transaction, validators can save gas fees while also simplifying their workflow.

Each operation leverages EIP-7702 (Set EOA account code) and requires just one authorization signature from the withdrawal address. After completing your batch operations, we recommend unsetting delegation to restore standard EOA behavior and prevent the address from functioning as a smart contract.

Our implementation prioritizes both security and ease of use with additional features:

Secure Key Handling: Private keys are never stored in configuration files; the tool securely prompts for input only at runtime
Dynamic Fee Calculation: Automatically fetches required fees per validator from the smart contract

Configuration Overview

The tool requires a JSON configuration file (config.json) to operate. Depending on the operation you wish to perform, you'll need to edit specific sections of the file. You can find further details about configuration on our Github.

You only need to configure the sections relevant to your intended operation. For example, if you're only performing a switch operation, you can leave the consolidate and elExit sections as is or remove them.

Switch Operation

The switch operation allows you to update withdrawal credentials for up to 200 validators from 0x01 type to 0x02 type in a single transaction.

Configuration

Edit the switch section of your config file:

"switch": {
  "validators": [
    "b5a2635ef8d420a0c5d23341c638dd11a500aefa8f7d9fc1f726edbf8163f4e0b727f47faa57b91af50c13e863f13142",
    "b5f27dae0d6623d953252405056ce3a56ddf575de95c46cb212d396ffe4ccf0f905c138a897e8bde2e7e146705f88306"
  ]
}

Command

./pectra-cli switch config.json

Consolidate Operation

Consolidation allows you to merge up to 63 validators into a single target validator, simplifying management and reducing overhead.

Configuration

Edit the consolidate section of your config file:

"consolidate": {
  "sourceValidators": [
    "880165dbbc70136744d942a450317d9e2cb4684eb460e33b0171ccfa4ddac99eb93c5603b95511d0f7b388f47ebcd36f",
    "b5a2635ef8d420a0c5d23341c638dd11a500aefa8f7d9fc1f726edbf8163f4e0b727f47faa57b91af50c13e863f13142"
  ],
  "targetValidator": "b5f27dae0d6623d953252405056ce3a56ddf575de95c46cb212d396ffe4ccf0f905c138a897e8bde2e7e146705f88306"
}

Command

./pectra-cli consolidate config.json

Exit Operation

The execution layer exit operation allows you to perform partial or full exits for up to 200 validators directly from the execution layer.

Configuration

Edit the elExit section of your config file:

"elExit": {
  "validators": {
    "b5f27dae0d6623d953252405056ce3a56ddf575de95c46cb212d396ffe4ccf0f905c138a897e8bde2e7e146705f88306": {
      "amount": 1000000000,
      "confirmFullExit": false
    },
    "a64d428e5933b2a54c64431ab9f99dcd1bc943cb6c38de9aadb221a2af6167ab9caccc384ae221d738886942daf15788": {
      "amount": 0,
      "confirmFullExit": true
    }
  }
}

For partial exits, specify the amount in Gwei and set confirmFullExit to false. For full exits, set amount to 0 and confirmFullExit to true.

Command

./pectra-cli el-exit config.json

Open Source Access

We've open-sourced our Pectra validator operations tool to benefit the entire Ethereum community. The code is available on GitHub, where you'll find comprehensive documentation, installation instructions, and examples. Please refer to the Github project and go through the notes provided in the README before attempting to use the tool.

Visit our GitHub repository for full technical details and to contribute to the project: Pectra CLI Validators Tool Repository.

Conclusion

The Luganodes’ Pectra CLI Validator Ops CLI Tool represents a significant advancement in Ethereum validator management, leveraging EIP-7702 to enable batch operations that were previously impossible. By allowing multiple validator operations in a single, atomic transaction, our tool saves time, reduces complexity, and minimizes gas costs for validator operators.

Whether you're managing a handful of validators or a large-scale staking operation, our audited smart contract and CLI tool provide a secure, efficient solution for the post-Pectra Ethereum ecosystem. Simply configure your JSON file, run the appropriate command, and manage your validators with unprecedented ease.

Start optimizing your validator operations today with Luganodes' Pectra Validator Operations solution.

About Luganodes

Luganodes is a world-class, Swiss-operated, non-custodial blockchain infrastructure provider that has rapidly gained recognition in the industry for offering institutional-grade services. It was born out of the Lugano Plan B Program, an initiative driven by Tether and the City of Lugano. Luganodes maintains an exceptional 99.9% uptime with round-the-clock monitoring by SRE experts. With support for 45+ PoS networks, it ranks among the top validators on Polygon, Polkadot, Sui, and Tron. Luganodes prioritizes security and compliance, holding the distinction of being one of the first staking providers to adhere to all SOC 2 Type II, GDPR, and ISO 27001 standards as well as offering Chainproof insurance to institutional clients.

The information herein is for general informational purposes only and does not constitute legal, business, tax, professional, financial, or investment advice. No warranties are made regarding its accuracy, correctness, completeness, or reliability. Luganodes and its affiliates disclaim all liability for any losses or damages arising from reliance on this information. Luganodes is not obligated to update or amend any content. Use of this at your own risk. For any advice, please consult a qualified professional.