We architect, develop, and audit custom smart contracts that form the immutable backbone of your application. Our team delivers gas-optimized, upgradeable, and secure code for tokens, DeFi protocols, NFTs, and DAOs.
LABS
Services
Account Abstraction Wallet Privacy Integration
Integrate advanced privacy features into smart contract wallets using Account Abstraction (ERC-4337), enabling stealth transactions, confidential user operations, and enhanced user experience.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your protocol.
From a 2-week MVP to a full-scale mainnet deployment, we ensure your contracts are battle-tested and ready for launch.
- Full-Stack Development:
Solidity/Vypercontracts withHardhat/Foundryframeworks andOpenZeppelinlibraries. - Security-First Process: Multi-stage audits, formal verification, and comprehensive test suites covering 95%+ of code.
- Deployment & Integration: Mainnet deployment, verification on Etherscan, and integration with your front-end and backend systems.
key-features-cards
ENTERPRISE-GRADE SECURITY
Core Privacy Capabilities We Integrate
We architect and implement the foundational privacy features that protect user assets and data, ensuring regulatory compliance and user trust for your AA wallet.
benefits
STRATEGIC ADVANTAGE
Why Integrate Privacy at the Account Layer
Privacy is not just a feature; it's a foundational requirement for user adoption and regulatory compliance. Integrating privacy directly into the account abstraction layer delivers superior security, user experience, and business logic control compared to application-level solutions.
01
User Sovereignty & Experience
We deliver stealth addresses and transaction obfuscation at the wallet level, shielding user activity from public block explorers. This creates a seamless, private UX without requiring users to understand complex privacy tools.
100%
On-Chain Obfuscation
0 Extra Steps
For End Users
02
Regulatory Compliance by Design
Our architecture enables programmable compliance (e.g., travel rule, AML) and selective disclosure proofs at the account level. This allows you to build for regulated markets without sacrificing core privacy guarantees.
ZK-Proofs
For Verification
Granular
Policy Control
03
Enhanced Security Posture
Moving privacy logic from dApps to the account layer reduces the attack surface. We implement privacy using audited, battle-tested cryptographic libraries like Semaphore and zk-SNARKs, minimizing smart contract risk.
> $1B
Audited Code
Reduced
dApp Attack Surface
04
Future-Proof Architecture
Account-layer privacy is protocol-agnostic, ensuring compatibility with future L2s, alt-VMs, and cross-chain messaging protocols. We build on ERC-4337 and ERC-7579 standards for maximum interoperability.
ERC-4337/7579
Standards-Based
Multi-Chain
Compatible
05
Superior Gas Efficiency
Batching private operations at the account level (via Bundlers) significantly reduces gas costs compared to per-transaction privacy mixes. Our optimizations target a <20% overhead for privacy features.
< 20%
Gas Overhead
Batched
Operations
06
Monetization & Business Logic
Privacy becomes a programmable service. We enable features like private subscriptions, enterprise-grade analytics with user consent, and custom privacy rules that you control, opening new revenue streams.
Programmable
Privacy Rules
New
Revenue Models
Make the Right Infrastructure Decision
Build vs. Buy: Privacy Integration Paths
Compare the total cost, risk, and time commitment of developing privacy features in-house versus using Chainscore's managed Account Abstraction privacy service.
| Factor | Build In-House | Chainscore Integration |
|---|---|---|
Time to Market | 6-9 months | 2-4 weeks |
Initial Development Cost | $150K - $400K+ | $25K - $75K |
Security Audit Requirement | Mandatory (extra $50K-$100K) | Included (pre-audited modules) |
Expertise Required | Senior ZK/Privacy Engineers (2-3 FTE) | Your existing Web3 team |
Ongoing Maintenance & Updates | Your team (1-2 FTE) | Fully managed by Chainscore |
Protocol Support (e.g., Tornado, Aztec) | Custom integration per chain | Pre-built for 10+ EVM chains |
Compliance & Monitoring Tools | Build from scratch | Built-in compliance dashboard |
Total Year 1 Cost (Est.) | $300K - $600K+ | $50K - $150K |
Implementation Risk | High (novel cryptography) | Low (battle-tested solution) |
how-we-deliver
END-TO-END EXECUTION
Our Development & Integration Process
A proven, security-first methodology to integrate privacy-preserving account abstraction into your wallet or dApp, delivering a production-ready solution in weeks, not months.
01
Architecture & Design Review
We analyze your existing wallet architecture and user flows to design a custom privacy integration. This includes selecting the optimal privacy primitives (ZK-SNARKs, stealth addresses, privacy pools) and defining the smart account structure.
1-2 weeks
Design Phase
3+ Options
Architecture Reviewed
02
Smart Contract Development & Auditing
Our team builds the core privacy modules—custom Account and Paymaster contracts—using battle-tested libraries like Solady and OpenZeppelin. Every line of code undergoes internal review before external audit.
ERC-4337 Compliant
Standard
2+ Audits
Security Layers
03
SDK & Frontend Integration
We provide a tailored SDK and integrate privacy features directly into your wallet's UI/UX. This includes transaction simulation, gas sponsorship management, and user-friendly privacy toggles for seamless adoption.
< 500ms
Simulation Latency
React/Next.js
Framework Support
04
Testing & Security Hardening
Rigorous testing across private testnets and mainnet forks using Foundry and Hardhat. We conduct penetration testing on the integrated system and implement monitoring for anomalous gas patterns or privacy leaks.
100% Coverage
Critical Paths
24/7 Monitoring
Post-Deployment
05
Deployment & Mainnet Launch
We manage the secure deployment of all contracts (Factory, EntryPoint, Paymaster) and assist with the production launch. Includes configuration of bundler infrastructure and RPC endpoints for optimal performance.
Zero Downtime
Guarantee
< 1 Day
Cutover Window
06
Ongoing Support & Optimization
Post-launch, we provide monitoring dashboards, analytics on privacy feature adoption, and optimization updates for new EIPs (e.g., ERC-7702) or reduced gas costs. Includes SLA-backed support.
99.9% SLA
Uptime
< 1 Hour
Critical Response
security-approach
BUILD
Custom Smart Contract Development
Secure, audited smart contracts tailored to your specific business logic and tokenomics.
We architect and deploy production-ready smart contracts that are secure by design. Every contract undergoes a multi-stage audit process before mainnet deployment, ensuring your core business logic is protected against exploits.
- Token Standards: Custom
ERC-20,ERC-721,ERC-1155, andERC-4626implementations. - DeFi Primitives: Automated Market Makers (AMMs), liquidity pools, staking, and vesting contracts.
- Gas Optimization: Code reviewed for efficiency, targeting up to 40% lower transaction costs.
- Full Audit Trail: Deliverables include comprehensive documentation, test suites, and verification on Etherscan/Polygonscan.
From initial concept to final deployment, we handle the entire lifecycle, enabling you to launch a secure, functional MVP in as little as 2 weeks.
Account Abstraction Privacy
Frequently Asked Questions
Answers to common technical and commercial questions about integrating privacy into AA wallets.
A standard integration with a privacy-preserving smart account and stealth address system takes 3-5 weeks from kickoff to mainnet deployment. This includes design, development, security review, and testing. Complex requirements like custom zero-knowledge circuits or multi-chain deployments can extend the timeline, which we scope and quote upfront.
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