ERC-4337 Development Company

Looking to build smart contract wallets and Account Abstraction–based infrastructure on Ethereum or EVM chains? At Oodles, we specialize in ERC-4337 development that powers next-generation user experiences through gasless transactions, smart wallet automation, and secure bundler-based execution. We develop blockchain apps as seamless as Web2 while maintaining full decentralization and control.

Smart Account & Wallet Development

Bundler & Paymaster Integration

UserOperation API & EntryPoint Implementation

Session Keys & Transaction Automation

Cross-Chain Account Abstraction (AA) Deployment

Custom Gasless dApp Infrastructure

Oodles | Your Trusted ERC-4337 Development Company

With over a decade of blockchain engineering experience and 260+ successful projects, Oodles builds ERC-4337-based solutions that redefine blockchain usability. From smart contract wallets and bundler networks to gas abstraction layers and paymaster modules, we deliver the complete ecosystem to make decentralized applications frictionless, secure, and scalable. We help startups, enterprises, and Web3 platforms integrate Account Abstraction into their architecture, enabling gasless UX, multi-sig-like control, and programmable wallet logic that aligns with mainstream user expectations.

Our ERC-4337 Development Services

We deliver end-to-end ERC-4337 development solutions tailored to your project’s scale and technical requirements. Whether you’re building a dApp with gasless transactions, an AA-based wallet, or an enterprise Web3 platform, our engineers ensure complete compatibility, security, and scalability across Ethereum, Polygon, Arbitrum, and other EVM chains.

Smart Account (AA Wallet) Development

We develop smart contract wallets powered by ERC-4337’s EntryPoint and UserOperation standards to enable secure, flexible, and programmable user accounts. These wallets allow for built-in recovery mechanisms, batched transactions, and policy-based automation that simplify blockchain interactions for users. Designed for both individuals and enterprises, our AA wallets bridge the usability gap between decentralized systems and traditional applications.

Modular Architecture: Wallets with pluggable authentication, recovery, and permission layers

Multi-Signature & Session Keys: Fine-grained access for individual or enterprise use

Upgradeable Contracts: Future-ready wallet logic adaptable to protocol updates

Bundler & Paymaster Implementation

We design and deploy Bundler services that handle the full life cycle of UserOperations, from validation to execution, ensuring reliability and efficiency. Our team also develops Paymaster modules that abstract gas fees, allowing users to interact with dApps without holding native tokens. This combination delivers frictionless, Web2-like experiences that drive higher adoption across your decentralized applications.

Bundler Network Setup: High-performance, fault-tolerant bundler node design

Custom Paymaster Modules: Implemented for ERC-20 or stablecoin-based gas payments

Gasless dApp Integration: Enable sponsored or subscription-based user transactions

EntryPoint Contract Integration

We integrate and customize the ERC-4337 EntryPoint contract to ensure secure and standardized routing of UserOperations within your ecosystem. Our engineers fine-tune validation hooks, execution pipelines, and access controls to match your project’s governance model and user flow. This ensures your Account Abstraction framework performs efficiently while maintaining complete compliance with Ethereum’s specifications.

Secure Validation Logic: Compliance with official 4337 specs and security best practices

Access Control Extensions: Custom logic for role-based operation management

Multi-Network Deployments: Fully tested across Ethereum mainnet and L2s

UserOperation API Development

We build reliable UserOperation APIs that relay signed operations to the bundler network, abstracting complex blockchain logic for developers and users alike. These APIs manage transaction queuing, retries, and prioritization, ensuring smooth and predictable performance under varying network conditions. Our plug-and-play SDKs make it easy for frontend or mobile developers to integrate ERC-4337 capabilities into their existing systems with minimal setup.

AA-Compliant APIs : Full ERC-4337 RPC spec support

Monitoring & Queuing: Track pending ops, prioritize fees, and auto-retry failed transactions

Plug-and-Play SDKs: Seamless integration with dApp frontends and mobile apps

Cross-Chain Account Abstraction

We extend ERC-4337 functionality across multiple EVM networks to provide users with a single, unified wallet experience. Our architecture ensures consistent account states and transaction logic across Ethereum, Polygon, Arbitrum, Optimism, and beyond. By integrating interoperability protocols such as LayerZero and Axelar, we help dApps expand seamlessly across chains while retaining unified governance and access control.

LayerZero & Axelar Integration: Cross-chain operation routing and validation

Universal EntryPoint Layer : Manage UserOps across Ethereum, Polygon, and Arbitrum

Multi-Network Wallet Sync: Ensure consistent state and identity across networks

Security Auditing & Compliance

We apply a security-first approach to every ERC-4337 component, from smart accounts and bundlers to paymasters and APIs. Our process includes automated testing, manual code reviews, and comprehensive third-party audits to identify and eliminate vulnerabilities before deployment. Beyond audits, we offer continuous monitoring and patching to ensure long-term compliance and protection against emerging threats.

Formal Verification: For wallet logic and operation execution flow.

Third-Party Audits: Collaboration with leading audit firms.

Ongoing Security Patching: Continuous monitoring post-launch.

Our Tech Stack for ERC-4337 Development

We use a high-performance, modular tech stack to build Account Abstraction systems that are scalable, secure, and EVM-compliant.

Ethereum

BNB Chain

Polygon

Avalanche

Arbitrum

Optimism

Solana

Cosmos SDK

Polkadot/Substrate

LayerZero

Wormhole

Axelar

Chainlink CCIP

Cosmos IBC

Multichain

Solidity

Rust

CosmWasm

Vyper

Move

Node.js

Python (FastAPI)

PostgreSQL

Redis

Kafka

WebSockets

React.js

Next.js

Vue.js

Tailwind

Web3.js

Ethers.js

MetaMask

WalletConnect

Phantom

Keplr

Ledger

Gnosis Safe

LayerZero

Wormhole

Chainlink CCIP

Multichain

Axelar

Our ERC-4337 Development Process

We follow a structured process that combines agile delivery, transparent collaboration, and technical precision to launch secure and scalable ERC-4337 implementations.

Discovery & Architecture Design

Smart Account & Contract Development

Bundler & API Integration

Testing & Auditing

Deployment & Support

Define UX goals, use cases, and network selection

Design governance, wallet logic, and payment abstraction models

Plan scalability, integration, and compliance strategy

What Our Clients Say

We take pride in building long-term partnerships and delivering exceptional results as a trusted decentralized exchange development company. Here’s what some of our clients have to say about their experience working with us.

Richard Hashwell,

Senior Software Engineer at SuggestChain

From the initial consultation to the final product delivery, the team at Oodles Blockchain demonstrated a deep understanding of the blockchain and NFT space. We were concerned about potential vulnerabilities in the smart contracts. However, Oodles' team conducted thorough audits, identified and resolved vulnerabilities promptly, and implemented robust security measures.

5.0

Quality 5.0

Schedule & Timing 5.0

Communication 5.0

David Turner,

Information Technology Manager at NetTech Innovation

The development team at Oodles understood the importance of interoperability within our metaverse platform. It created a solution that seamlessly integrated with other blockchain-based applications, virtual assets, and decentralized protocols, fostering a more immersive and interconnected metaverse experience. The team tailored blockchain solutions to meet our specific needs to ensure that the platform aligns with our unique vision and goals.

5.0

Quality 5.0

Schedule & Timing 4.0

Communication 5.0

Ming Wei Tan,

Development Manager at VertexStream Innovations

Our experience working with our Oodles Blockchain for blockchain development services on the Supply Chain Tracking System project has been truly remarkable. Their dedication and commitment to our project's success have aligned perfectly with our goals and directives. Throughout the development process, the entire team has been incredibly impressive, showcasing their expertise and creativity. We genuinely appreciate their efforts in bringing this innovative digital tool to the market. It has been a pleasure collaborating with such a motivated and effective partner.

5.0

Quality 5.0

Schedule & Timing 5.0

Communication 5.0

Natalie Carter,

Project Manager at BlockchainEduConnect

I recently had the opportunity to experience the exceptional blockchain development services provided by Oodles Blockchain. To put it simply, my journey with them has been nothing short of outstanding. Oodles Blockchain truly exceeded our expectations in every way. From the very beginning of our collaboration, their expertise in blockchain technology was evident. They understood the unique challenges and opportunities in the education sector, and their insights were invaluable in shaping our project.

5.0

Quality 5.0

Schedule & Timing 5.0

Communication 5.0

Donna Johnson,

Client Relationship Manager at NexaByte Solutions

I am truly impressed by the outstanding work carried out by the blockchain team at Oodels Blockchain in bringing our project to fruition. Their unwavering dedication and profound expertise have led to the successful development of a seamless and user-friendly blockchain financial system. This achievement underscores their profound mastery of blockchain technology, exceptional teamwork, and unwavering commitment to pushing the boundaries of innovation.

5.0

Quality 5.0

Schedule & Timing 5.0

Communication 5.0

Sachin Kumar,

Digital Marketing Specialist at The Alpha Agency

I highly recommend Oodles for all your BlockChain requirements. I worked with them as their ISO consultant and found the whole team very cooperative and helpful, Your patience, creativity & intuition have been a pleasure to work with.

5.0

Quality 5.0

Schedule & Timing 5.0

Communication 5.0

Why Choose Oodles for ERC-4337 Development

Proven Account Abstraction Expertise

We’ve built and deployed multiple ERC-4337 wallets, paymasters, and bundlers across testnets and mainnets.

Custom Architecture Design

Every ERC-4337 implementation is tailored to your dApp’s UX and scalability needs.

Security-First Development

We follow rigorous audit standards, with built-in validation and rollback safety.

Cross-Chain Readiness

Operate seamlessly across multiple EVM networks with one unified wallet identity.

Certified Project Management

Our PMP-certified managers ensure timely delivery with continuous progress visibility.

Long-Term Partnership

We provide ongoing upgrades, bundler monitoring, and gas optimization strategies post-launch.

FAQs (Frequently Asked Questions)

ERC-4337 is an Ethereum standard that enables Account Abstraction, allowing wallets to act like smart contracts with programmable logic and gasless UX.

Unlike EOAs, ERC-4337 wallets can batch transactions, enable social recovery, and sponsor gas fees via Paymasters.

Yes, we develop and host custom bundlers optimized for high throughput and network stability.

Absolutely. We implement Paymasters that cover transaction fees using native tokens, stablecoins, or ERC-20s.

Currently supported on Ethereum, Polygon, Arbitrum, Optimism, BNB Chain, and Avalanche.

A basic wallet setup takes around 6–8 weeks, while advanced multi-chain systems may require 12–16 weeks, including audits.

Through in-depth audits, formal verification, access control, and live transaction monitoring.