We architect, develop, and audit custom Solidity/Rust smart contracts that form the immutable backbone of your protocol. Our development process ensures gas-optimized code, adherence to EIP standards, and integration with OpenZeppelin libraries for maximum security from day one.
LABS
Services
Account Abstraction Mobile Wallet Services
We build secure, mobile-first Web3 PWAs using ERC-4337 to eliminate seed phrases, enable gasless transactions, and boost user activation by 3x.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your decentralized application.
Deploy with confidence. Every contract undergoes our rigorous internal audit cycle before we recommend third-party verification, mitigating the risk of costly exploits and protecting user assets.
- Custom Logic: Tailored
ERC-20,ERC-721, staking, governance, and multi-signature wallets. - Security-First: Development follows industry best practices with formal verification for critical functions.
- Full Lifecycle: From specification and development to deployment, verification, and ongoing maintenance on
EVM/non-EVMchains.
key-features-cards
BUILT FOR SCALE
Core Technical Capabilities
We deliver production-ready, secure, and scalable mobile wallet infrastructure. Our technical stack is battle-tested by fintechs and Web3 startups processing billions in transaction volume.
01
ERC-4337 Smart Account Implementation
Full-stack development of ERC-4337 compliant smart accounts. We handle Bundler, Paymaster, and Account Factory integration for gas sponsorship, batch transactions, and session keys.
< 2 weeks
Integration Time
ERC-4337
Standard
02
Cross-Chain & Multi-Asset Support
Native support for EVM chains (Ethereum, Polygon, Arbitrum, Base) and non-EVM (Solana, Cosmos). Manage tokens, NFTs, and DeFi positions from a single interface.
10+
Chains Supported
ERC-20/721/1155
Token Standards
03
Enterprise-Grade Security & Audits
Smart contracts audited by leading firms. Implementation includes multi-sig recovery, transaction simulation, and real-time threat monitoring to protect user assets.
100%
Audit Coverage
SOC 2
Compliance
04
Custom UX & Onboarding Flows
Design and build seamless user experiences: social logins (Web3Auth), fiat on-ramps, in-app swaps, and gasless transactions to maximize user adoption and retention.
90%
Faster Onboarding
< 1 sec
Tx Signing
05
Real-Time Analytics & Webhooks
Comprehensive dashboard for monitoring wallet activity, transaction success rates, and user behavior. Get instant alerts via webhooks for key on-chain events.
99.9%
Data Uptime
< 100ms
Event Latency
06
DevOps & Infrastructure
Managed RPC nodes, indexers, and relayers with 99.9% SLA. Automated CI/CD, containerized deployment, and 24/7 monitoring ensure zero-downtime operations.
99.9%
Uptime SLA
24/7
Monitoring
benefits
DELIVERABLES & GUARANTEES
Business Outcomes for Your Product
We deliver production-ready account abstraction infrastructure with measurable results. Our focus is on accelerating your time-to-market while ensuring enterprise-grade security and scalability.
01
Faster Time-to-Market
Deploy a fully functional, branded mobile wallet in under 4 weeks. We provide a modular SDK and pre-audited smart account templates, eliminating months of R&D.
< 4 weeks
To Production
90%
Code Reuse
02
Enhanced User Onboarding
Remove seed phrase friction with social logins (Web3Auth) and gasless onboarding. Achieve >70% higher activation rates compared to traditional EOAs.
> 70%
Higher Activation
$0
User Gas Costs
03
Enterprise-Grade Security
Smart Accounts built with OpenZeppelin standards, audited by leading firms. Includes session keys, multi-sig recovery, and real-time threat monitoring.
100%
Audit Coverage
< 1 hr
Recovery Time
04
Reduced Operational Cost
Our paymaster infrastructure and gas optimization cut transaction costs by up to 40%. Scalable backend handles user ops with 99.9% SLA.
40%
Cost Reduction
99.9%
Uptime SLA
06
Scalable Transaction Engine
High-throughput bundler and paymaster service processing 10,000+ UserOperations per second. Auto-scales with your user growth.
10k+
Ops/Second
< 2 sec
Finality
Structured Delivery for Account Abstraction Wallets
Phased Development Packages
Compare our modular service tiers for building secure, production-ready AA wallets. Each package includes the previous tier's features.
| Core Deliverables | Launch Package | Scale Package | Enterprise Suite |
|---|---|---|---|
Custom AA Smart Account (ERC-4337) | |||
Multi-Chain Support (2 chains) | Ethereum + 1 | Ethereum + 3 | Ethereum + 5+ |
Bundler & Paymaster Integration | Basic | Advanced (Gas Sponsorship) | Full Custom Logic |
Mobile SDK (iOS/Android) | React Native | Native + React Native | Fully Native |
Security Audit | Automated Scan | Manual Review + Report | Full Audit + CertiK/OpenZeppelin |
Biometric & Social Login | Basic | Multi-Provider | Custom Onboarding Flow |
Team Training & Documentation | Standard Docs | 2 Workshop Sessions | Dedicated Technical Lead |
Deployment & Go-Live Support | Full Deployment | White-Glove Migration | |
Ongoing Maintenance SLA | Business Hours | 24/7 with 1h Response | |
Estimated Timeline | 6-8 weeks | 10-12 weeks | Custom (16+ weeks) |
Starting Price | $45,000 | $120,000 | Contact for Quote |
how-we-deliver
PREDICTABLE DELIVERY
Our Development & Integration Process
A structured, transparent approach to deliver secure, scalable mobile wallet infrastructure with Account Abstraction (ERC-4337). We de-risk your project with clear milestones and expert execution.
01
Discovery & Architecture
We conduct a technical deep-dive to define your wallet's user model, gas sponsorship strategy, and smart account architecture. This phase establishes the technical blueprint and project timeline.
1-2 weeks
Duration
> 50
Architecture Questions
02
Smart Account & Paymaster Development
Our team builds your custom ERC-4337 smart accounts, paymaster contracts for gas abstraction, and secure factory contracts. All code follows OpenZeppelin standards and is optimized for gas efficiency.
Solidity 0.8+
Language
OpenZeppelin
Security Base
03
Mobile SDK Integration
Seamless integration of our React Native or native iOS/Android SDKs. We handle bundler interactions, user operation signing, and provide a polished UI/UX component library for rapid front-end development.
< 5 days
Integration Time
TypeScript
Primary SDK
04
Security Audit & Testing
Every smart contract undergoes rigorous internal review and formal verification. We facilitate third-party audits with firms like CertiK or Quantstamp and implement a comprehensive test suite covering all user flows.
100%
Line Coverage
Formal Verification
Methodology
05
Deployment & Mainnet Launch
We manage the deployment of factory, entry point, and paymaster contracts across your target networks (Ethereum, Polygon, Arbitrum). Includes configuration of bundler RPC endpoints and initial user onboarding.
Multi-chain
Support
< 48 hours
Go-Live Window
06
Monitoring & Support
Post-launch, we provide 24/7 monitoring of contract health, user operation success rates, and paymaster balances. Includes SLA-backed support for upgrades, scaling, and integrating new ERC-4337 features.
99.9%
Uptime SLA
< 1 hour
Critical Response
Strategic Decision Matrix
Build vs. Buy vs. Integrate a Generic SDK
A detailed comparison of approaches for implementing Account Abstraction (ERC-4337) mobile wallet services, focusing on time, cost, and risk for technical leaders.
| Key Factor | Build In-House | Integrate Generic SDK | Partner with Chainscore |
|---|---|---|---|
Time to Initial Launch | 6-12 months | 2-4 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $50K - $150K | $75K - $200K |
ERC-4337 & EIP Expertise | Must Hire/Build | Limited to SDK Scope | Included (Core Team) |
Smart Contract Security | High Risk (Unaudited) | Medium Risk (Vendor Audited) | Low Risk (Formally Audited) |
Custom UserOps & Paymasters | Full Control | Limited/None | Full Customization |
Gas Sponsorship Logic | Build from Scratch | Pre-built Templates | Bespoke Sponsorship Rules |
Multi-Chain Support (EVM) | Per-Chain Integration | SDK-Dependent | Native Support (10+ Chains) |
Ongoing Maintenance & Updates | Full Internal Team | Vendor Release Cycle | Managed Service (SLA) |
Total Cost of Ownership (Year 1) | $400K - $800K+ | $100K - $250K | $150K - $300K |
Strategic Outcome | Maximum Control, Max Cost & Time | Faster Start, Vendor Lock-in Risk | Speed to Market with Customization |
Account Abstraction
Frequently Asked Questions
Get clear answers on our mobile wallet development process, security, and support.
We deliver a production-ready, white-labeled Account Abstraction mobile wallet in 4-6 weeks for a standard feature set. This includes core AA features (social recovery, gas sponsorship, batch transactions), integration with 2-3 target blockchains, and a custom UI/UX. Complex requirements like custom paymaster logic or multi-chain DeFi integrations can extend the timeline, which we scope and agree upon before project kickoff.
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