We architect and deploy custom smart contracts on EVM-compatible chains (Ethereum, Polygon, Arbitrum) and Solana. Our development process is built for security and speed, delivering a minimum viable product (MVP) in 2-4 weeks.
LABS
Services
Account Abstraction Wallet for Multi-Chain DeFi
We build smart contract wallet systems that enable batch transactions, gas sponsorship, and session keys across multiple chains, reducing user friction in complex DeFi workflows.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for your specific Web3 use case.
- Security-First Development: Code written in
Solidity 0.8+orRust, followingOpenZeppelinstandards and undergoing internal + third-party audits. - Full-Stack Integration: We build the supporting
Node.js/Pythonbackend,Reactfrontend, andThe Graphindexers to make your contracts operational. - Gas Optimization: Every contract is analyzed and optimized to reduce user transaction costs by 20-40% on average.
We don't just write code; we deliver a complete, audited, and gas-efficient smart contract system ready for mainnet launch.
key-features-cards
ENTERPRISE-GRADE FEATURES
Core Wallet Capabilities We Implement
We build multi-chain DeFi wallets with the security, flexibility, and user experience required for high-volume institutional and retail applications. Our implementations are production-ready from day one.
01
ERC-4337 Account Abstraction
Implement full ERC-4337 standard for smart contract wallets. Enable gas sponsorship, batch transactions, and session keys to abstract complexity from end-users and drive adoption.
ERC-4337
Standard
0.6.0+
EntryPoint Version
02
Multi-Chain & Cross-Chain Operations
Seamless wallet operations across EVM and non-EVM chains (Ethereum, Polygon, Arbitrum, Solana, Cosmos). Built-in cross-chain messaging for unified asset management and DeFi interactions.
10+
Chains Supported
CCIP/Axelar
Bridge Protocols
03
Advanced Security & Recovery
Social recovery with configurable guardians, multi-signature policies, and transaction simulation to prevent hacks. All modules are built with OpenZeppelin standards and undergo formal verification.
OpenZeppelin
Security Standard
Formal Verification
Audit Level
04
Gas Optimization & Sponsorship
Paymaster integration for gas fee abstraction, allowing dApps to sponsor user transactions. Advanced gas estimation and fee market logic for predictable, low-cost operations on any chain.
< 0.5 sec
Estimation Time
Paymaster v0.6
Integration
05
DeFi-Specific Functionality
Native support for complex DeFi interactions: limit orders, yield farming strategies, and automated portfolio rebalancing. Pre-integrated with major protocols like Uniswap V3, Aave, and Compound.
15+
Protocol Integrations
Sub-Second
Swap Execution
06
Compliance & Monitoring Suite
Built-in tools for address screening (TRM Labs, Chainalysis), transaction monitoring, and audit trails. Configurable rulesets for OFAC compliance and institutional risk management.
TRM/Chainalysis
Integration
Real-Time
Monitoring
benefits
MEASURABLE RESULTS
Business Outcomes for Your DeFi Product
Our Account Abstraction Wallet development delivers concrete technical and commercial advantages, moving your multi-chain DeFi product from concept to market leadership.
01
Accelerated User Onboarding
Eliminate seed phrase friction with social logins and gasless onboarding. Reduce the sign-up to first transaction time from minutes to seconds, capturing users competitors lose.
< 30 sec
First Transaction
70%+
Onboarding Completion
02
Reduced Operational Complexity
We handle gas management, multi-chain key management, and batch transactions. Your team focuses on core product logic, not wallet infrastructure.
90%
Gas Ops Overhead
1 SDK
Unified Interface
03
Enhanced Security & Compliance
Built with audited smart account standards (ERC-4337) and OpenZeppelin libraries. Implement transaction policies, spending limits, and recovery mechanisms for enterprise-grade security.
ERC-4337
Core Standard
Multi-sig
Recovery Options
04
Seamless Multi-Chain Experience
Deploy a single user identity across Ethereum, Polygon, Arbitrum, and other EVM chains. Enable asset management and interactions without manual network switching.
10+
Supported Chains
Zero-Click
Chain Switching
05
Faster Feature Deployment
Leverage our modular architecture for paymasters, bundlers, and custom validation logic. Integrate new DeFi protocols or chain support in weeks, not quarters.
< 3 weeks
New Protocol Integration
Modular
Architecture
06
Improved Capital Efficiency
Enable sponsored transactions and session keys for predictable UX. Users interact freely while you optimize gas costs through smart batching and fee abstraction.
40-60%
Gas Cost Savings
Batch Tx
Cost Optimization
Multi-Chain AA Wallet Development
Structured Development Packages
Compare our tiered packages for building a secure, production-ready Account Abstraction wallet for DeFi. Each package includes core smart contract development, with scaling options for support and deployment.
| Feature / Deliverable | Starter | Professional | Enterprise |
|---|---|---|---|
Custom Smart Contract Suite (ERC-4337/7579) | |||
Multi-Chain Deployment (EVM Chains) | Up to 2 | Up to 5 | Unlimited |
Gas Abstraction & Sponsorship Module | |||
Session Keys & Batch Transactions | |||
Smart Contract Audit Report | Basic Review | Full Audit (1 Firm) | Full Audit (2 Firms) |
Deployment & Configuration Support | Self-Serve | Full Support | White-Glove |
Integration Support (Frontend/SDK) | Documentation | Assisted | Dedicated Engineer |
Post-Launch Monitoring & Alerting | 30 Days | 6 Months | 24/7 with SLA |
Emergency Response Time | Best Effort | < 24 Hours | < 4 Hours |
Estimated Timeline | 4-6 Weeks | 6-8 Weeks | 8-12 Weeks |
Starting Price | $25,000 | $75,000 | Custom Quote |
how-we-deliver
PREDICTABLE, TRANSPARENT, AND FAST
Our 4-Phase Delivery Methodology
We deliver production-ready, secure account abstraction wallets through a structured process proven for FinTech and Web3 startups. Each phase has clear deliverables, timelines, and checkpoints to ensure your multi-chain DeFi product launches on schedule.
01
Phase 1: Discovery & Architecture
We define your wallet's core requirements and design a scalable, secure architecture. This includes selecting the optimal Account Abstraction standard (ERC-4337, ERC-6900), mapping multi-chain strategies (EVM, L2s, non-EVM), and finalizing a technical specification document.
Deliverable: Signed-off Technical Architecture & Project Roadmap.
1-2 weeks
Duration
100%
Specification Clarity
02
Phase 2: Core Development & Smart Contracts
Our engineers build the core wallet infrastructure. We develop and unit-test the Account Factory, Paymaster, Bundler integration, and custom modules (social recovery, batch transactions). All smart contracts follow OpenZeppelin standards and are optimized for gas efficiency.
Deliverable: Deployed, auditable smart contracts on testnet.
3-4 weeks
Duration
OpenZeppelin
Security Standard
03
Phase 3: Integration & Security Audit
We integrate the wallet with your frontend, backend APIs, and target blockchains (Ethereum, Polygon, Arbitrum, etc.). Concurrently, the codebase undergoes a comprehensive security review by our internal audit team, with findings documented and remediated.
Deliverable: Integrated MVP and a completed Security Audit Report.
2-3 weeks
Duration
Internal Audit
Security Layer
04
Phase 4: Deployment & Handover
We deploy the final wallet system to mainnet, configure monitoring (alerting for failed user operations, gas spikes), and provide complete technical documentation and developer training. We ensure a smooth transition to your internal team for ongoing operations.
Deliverable: Live production system and full knowledge transfer.
1 week
Duration
Full Docs
Knowledge Transfer
tech-stack
BUILT ON SECURE FOUNDATIONS
Trusted Protocols & Development Standards
We deliver production-ready Account Abstraction wallets using battle-tested standards and audited libraries, ensuring security, interoperability, and rapid deployment for your multi-chain DeFi strategy.
03
Multi-Chain Smart Account Deployment
Deploy identical smart account logic across Ethereum, Polygon, Arbitrum, and Base using our standardized tooling. Achieve consistent user experience and security postures on all supported chains.
8+
Supported Chains
Single Codebase
Deployment Model
05
Modular Plugin Architecture
Build with ERC-6900-compliant modules for session keys, social recovery, and batched transactions. Enable feature upgrades without full account migration, future-proofing your wallet.
Pre-built
Recovery Modules
Custom Logic
Session Keys
06
Rigorous Audit & Testing Pipeline
Every deployment undergoes unit, integration, and fork testing. We provide audit-ready code with 95%+ line coverage and can facilitate third-party audits with firms like Spearbit.
95%+
Test Coverage
Audit-Ready
Code Delivery
Account Abstraction & Multi-Chain Wallets
Frequently Asked Questions
Common questions from CTOs and technical founders evaluating our Account Abstraction wallet development services.
A production-ready, audited Account Abstraction wallet with core multi-chain DeFi features typically deploys in 3-5 weeks. This includes smart account factory contracts, a custom bundler/relayer infrastructure, and a frontend SDK. Complex integrations (e.g., custom paymasters, advanced session keys) can extend this to 6-8 weeks. We provide a detailed sprint-by-sprint project plan during the initial technical scoping.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall