We architect and deploy custom Solidity/Rust smart contracts that are secure by design. Every contract undergoes a multi-stage audit process, including automated analysis, manual review, and formal verification for critical logic, ensuring they are battle-tested for mainnet.
LABS
Services
Account Abstraction for Seamless NFT Membership
We design and deploy user-centric NFT membership experiences using ERC-4337 smart accounts. Abstract away crypto complexities with sponsored gas, session keys, and automated renewals to drive adoption and retention.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for your specific business logic and audited for enterprise deployment.
- Custom Business Logic: From
ERC-20tokens andERC-721NFTs to complex DeFi primitives and governance systems. - Gas Optimization: We write efficient code to reduce your users' transaction costs by up to 40%.
- Upgradeability & Security: Implement
Proxypatterns (Transparent/UUPS) with secure ownership controls. - Full Audit Trail: Deliverables include comprehensive technical specifications, test suites with >95% coverage, and audit reports.
key-features-cards
ENGINEERED FOR SCALE
Core Features of Our ERC-4337 Membership Stack
A production-ready infrastructure layer that replaces complex wallet management with seamless, gasless user experiences, accelerating your time-to-market.
01
Gasless Onboarding & Transactions
We implement sponsorship mechanisms (paymasters) so users never need native tokens. Eliminates the #1 friction point for mainstream adoption.
0 ETH
User Entry Cost
< 1 sec
Session Setup
02
Social Login & Multi-Chain Smart Accounts
Deploy ERC-4337 smart accounts with Google/Apple sign-in. Our stack manages cross-chain key management, abstracting complexity from your users.
5+
Chain Support
1-Click
Recovery
03
Batch Transactions & Session Keys
Enable single-click complex actions (mint+stake+claim) via UserOperation bundling. Implement secure session keys for temporary permissions.
90%
Gas Savings
Unlimited
Ops per Batch
04
Enterprise-Grade Bundler & Paymaster
We operate a high-availability bundler and customizable paymaster with real-time analytics, fraud detection, and cost optimization.
99.9%
Uptime SLA
< 500ms
Bundler RTT
05
Modular Permission Framework
Granular, time-bound role-based access control for membership tiers. Easily configure admin, moderator, and user-level permissions.
Audited
OpenZeppelin
Plug & Play
Integration
benefits
MEASURABLE IMPACT
Business Outcomes: From Technical Feature to Growth Driver
Account abstraction is a powerful technical capability. We translate it into concrete business results that drive user adoption, reduce operational overhead, and unlock new revenue streams.
01
Eliminate Onboarding Friction
Replace complex seed phrases and gas payments with familiar email/social logins and sponsor transactions. Result: Increase user activation rates by up to 70% and reduce drop-off at the first transaction.
70%
Higher Activation
0
Gas for Users
02
Enable Recurring & Automated Payments
Implement session keys and automated transaction bundling for seamless subscription renewals, automated staking rewards, and scheduled airdrops. Result: Create predictable, recurring revenue models and increase user retention.
40%
Higher LTV
24/7
Automation
03
Enhance Security & Recovery
Deploy social recovery, multi-signature policies, and transaction limits at the account level. Result: Drastically reduce support tickets for lost keys and provide enterprise-grade security controls for high-value users.
90%
Fewer Support Tickets
SOC 2
Compliant Design
04
Unlock Cross-Chain & Batch Operations
Build smart accounts that can natively interact with multiple chains and batch multiple actions into a single transaction. Result: Enable complex DeFi strategies and NFT minting flows with a single click, improving user experience and engagement.
80%
Lower Gas Costs
1-Click
Complex Flows
05
Rapid Integration & Time-to-Market
Leverage our pre-audited smart account factories, SDKs, and managed relayers. Result: Integrate full AA functionality in weeks, not months, and focus your team on core product differentiation.
< 4 weeks
Integration Time
ERC-4337
Standard Compliant
06
Actionable User Insights
Gain visibility into wallet activity, gas sponsorship costs, and feature adoption through our integrated analytics dashboard. Result: Make data-driven decisions to optimize user flows and sponsorship strategies for maximum ROI.
Real-time
Analytics
Custom KPIs
Dashboard
Compare our service tiers
Structured Development Packages for NFT Membership
Choose the right development package for your NFT membership project, from initial launch to enterprise-grade operations.
| Feature / Deliverable | Starter | Professional | Enterprise |
|---|---|---|---|
Custom ERC-721/1155 Smart Contracts | |||
Gas-Optimized Minting & Airdrop Logic | |||
Account Abstraction (ERC-4337) Integration | |||
On-Chain & Off-Chain Metadata Management | Basic | Advanced (IPFS + Arweave) | Advanced + Custom Indexer |
Smart Contract Security Audit | 1 Pass | 2 Passes + Formal Verification | 3 Passes + Bug Bounty Setup |
Deployment & Configuration Support | Mainnet Only | Multi-Chain (EVM) | Multi-Chain (EVM + Non-EVM) |
Custom Admin Dashboard | |||
API & Webhook Integration | Read-Only | Read/Write | Full-Suite with Dedicated Gateway |
24/7 Monitoring & Alerting | Uptime Only | Full Stack + Performance SLA | |
Incident Response Time SLA | N/A | Next Business Day | < 4 Hours |
Ongoing Maintenance & Upgrades | Optional | 12 Months Included | 24 Months Included + Roadmap Planning |
Estimated Delivery Timeline | 3-4 Weeks | 6-8 Weeks | 10-12 Weeks |
Starting Price | $25,000 | $75,000 | Custom Quote |
how-we-deliver
TRANSPARENT & PREDICTABLE
Our Development Process: From Specification to Mainnet
A structured, milestone-driven approach that ensures your account abstraction-powered membership system is delivered on time, on budget, and with enterprise-grade security.
01
Discovery & Specification
We conduct a technical deep-dive to define your membership logic, gas sponsorship models, and user onboarding flows. Deliverables include a detailed technical specification and architecture diagram.
2-3 days
Workshop
1 document
Final Spec
02
Smart Contract Development
Our engineers build custom ERC-4337 Account Factory, Paymaster, and Bundler integration using audited OpenZeppelin libraries. Includes comprehensive unit and integration testing.
Solidity 0.8+
Language
100% coverage
Test Target
03
Security Audit & Review
Every contract undergoes internal review followed by a formal audit from a partner firm like Spearbit or CertiK. We resolve all critical/high issues before proceeding.
2+ auditors
External Review
0 Critical
Guarantee
04
Frontend Integration
We integrate the AA stack into your dApp using viem/ethers.js and libraries like UserOp.js. We deliver a seamless UX for gasless transactions and social logins.
< 1 week
Typical Integration
React/Next.js
Framework
05
Testnet Deployment & QA
Full deployment on Sepolia or Goerli testnets. We execute end-to-end user journeys, stress-test paymaster economics, and provide a staging environment for your team.
100+ test cases
E2E Validation
Full suite
QA Reports
06
Mainnet Launch & Monitoring
We manage the production deployment, configure monitoring with Tenderly or Blocknative, and establish alerting for paymaster balances and bundler health.
24/7
Initial Monitoring
99.9% SLA
Infrastructure Uptime
Strategic Comparison
Build vs. Buy: Why Custom ERC-4337 Development Wins
A detailed breakdown of the costs, risks, and outcomes of building an ERC-4337-powered membership system in-house versus partnering with Chainscore Labs.
| Key Factor | Build In-House | Partner with Chainscore |
|---|---|---|
Time to Production | 6-12+ months | 4-8 weeks |
Initial Development Cost | $150K - $400K+ | $50K - $150K |
Security & Audit Overhead | High (unaudited, custom risk) | Low (pre-audited patterns, formal verification) |
Core Team Required | 3-5 Senior Solidity Devs | Your Product Team + Our Experts |
Ongoing Maintenance | Full-time devops & smart contract team | Optional SLA with 24/7 monitoring |
Gas Optimization Expertise | Trial and error required | Built-in with bundler & paymaster strategies |
Feature Completeness | Basic AA wallet | Sponsored tx, session keys, batched ops, recovery |
Total Cost of Ownership (Year 1) | $300K - $700K+ | $80K - $200K |
Integration Support | Your responsibility | End-to-end from smart accounts to frontend SDK |
Expert Answers
Frequently Asked Questions on Account Abstraction Development
Get clear, technical answers to the most common questions from CTOs and founders about implementing account abstraction for membership models.
We follow a structured 4-phase process: 1) Discovery & Scoping (1 week): We analyze your requirements and design the smart account architecture. 2) Development & Integration (2-4 weeks): Our team builds the custom 4337-compliant smart accounts, paymasters, and bundlers, integrating with your frontend. 3) Security Audit & Testing (1-2 weeks): Every contract undergoes internal review and optional third-party audits (e.g., OpenZeppelin). 4) Deployment & Support: We deploy to mainnet and provide 90 days of bug-fix support. This process has delivered 50+ secure Web3 projects.
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