Quick Start

After reading this page:

• You'll go through a decision process to understand the best way to integrate with ERC4337 methods with Gelato Bundler and Zerodev SDK.

• You'll know exactly which SDK/API method is for you.

Depending on your final destination, please click the corresponding link to find about your chosen SDK method:

• Sponsor UserOps Using 1Balance

• Sponsor UserOps Using Zerodev Paymaster

• Pay Gas for UserOps Using Native Tokens

• Pay Gas for UserOps Using ERC20 Tokens

Getting Started

Using Bundler API Endpoints

1. Clone the repository

git clone https://github.com/gelatodigital/erc4337-counter-example.git
cd src/gelato

2. Install dependencies

npm install

3. Copy environment variables

cp .env.example .env

or

Using Zerodev SDK

1. Clone the repository

git clone https://github.com/gelatodigital/how-tos-19-master-gelato-erc4337.git
cd how-tos-19-master-gelato-erc4337

2. Install dependencies

npm install

3. Copy environment variables

cp .env.example .env

Option 1. Sponsoring all of your users' gas

• Gas Fee Coverage A third-party sponsor (or paymaster) covers the gas fees, allowing users to transact without holding any native tokens.

• Frictionless Experience Users benefit from a seamless on-chain interaction, since they don’t directly manage or pay for transaction fees.

Option 2. Your users pay for for their own gas

• User-Paid Fees Users themselves cover the gas costs—either with the network’s native token (no paymaster needed) or through an ERC20 paymaster (when paying in ERC20 tokens).

• Greater Control Since users handle their own fees, they maintain direct control over cost management and transactions.