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
Privacy-Preserving Shielded Wallet
We build enterprise-grade shielded wallets using zk-SNARKs and zk-STARKs to enable confidential transactions and hidden balances on public blockchains, ensuring user data sovereignty.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
We don't just write code; we engineer systems that are secure by design, gas-optimized, and ready for mainnet.
- Security-First Development: All contracts undergo internal audits using tools like Slither and follow
OpenZeppelinstandards before external review. - Full-Stack Integration: We provide deployment scripts,
Hardhat/Foundrytest suites, and frontend SDKs for seamless integration. - Protocol Specialization: Expertise in
ERC-20,ERC-721,ERC-1155, staking mechanisms, customAMMs, and governance modules.
key-features-cards
ENTERPRISE-GRADE PRIVACY
Core Technical Capabilities of Our Shielded Wallet Engine
Our shielded wallet engine delivers production-ready, audited privacy infrastructure. We provide the technical foundation so your team can focus on building your core product.
benefits
ENTERPRISE-READY INFRASTRUCTURE
Business Outcomes: Beyond Technical Privacy
Our Shielded Wallet SDK delivers more than just privacy—it provides the operational security, compliance readiness, and user trust required to build and scale regulated Web3 applications.
01
Regulatory Compliance by Design
Deploy with built-in compliance tooling for AML/KYC, transaction monitoring, and audit trails. Our architecture supports selective disclosure to regulators without compromising user privacy, enabling operation in regulated markets like DeFi and institutional finance.
FATF Travel Rule
Compliance Ready
Zero-Knowledge Proofs
Selective Disclosure
02
Reduced Operational Risk
Mitigate smart contract and key management risks with our audited, non-custodial architecture. We provide enterprise-grade SLAs for infrastructure uptime and security incident response, backed by formal verification of core cryptographic circuits.
99.9%
Infrastructure Uptime SLA
Formal Verification
Core Circuits
03
Accelerated Time-to-Market
Integrate production-ready privacy in weeks, not months. Our SDKs for React, React Native, and Flutter, coupled with comprehensive documentation and developer support, allow your team to focus on core application logic.
< 4 weeks
Average Integration Time
3+
SDK Frameworks
04
Enhanced User Trust & Adoption
Build applications where users control their data. Privacy-preserving features increase user engagement and retention by 40-60% in sensitive sectors like healthcare data or private transactions, as demonstrated in pilot deployments.
40-60%
Higher User Retention
Non-Custodial
User Data Control
05
Scalable Transaction Privacy
Support high-volume private transactions with sub-second finality. Our infrastructure leverages optimized zero-knowledge proof systems (zk-SNARKs, zk-STARKs) to maintain performance under load, crucial for payment and trading applications.
< 1 sec
Proof Generation
zk-SNARKs/STARKs
Underlying Tech
06
Future-Proof Architecture
Built with modularity and upgradability in mind. Our system supports multiple privacy-preserving computation frameworks and is designed to adapt to new cryptographic standards and regulatory requirements without major refactoring.
Modular Design
Easy Upgrades
Multi-Framework
Protocol Support
Choose the right level of support for your privacy-first application
Structured Development Packages for Shielded Wallets
Compare our tiered service packages for developing and maintaining custom shielded wallets, designed to match your project's scale and security requirements.
| Feature / Specification | Starter | Professional | Enterprise |
|---|---|---|---|
Custom ZK-Circuit Development | |||
Smart Contract Audit & Hardening | |||
Multi-Chain Deployment (EVM, L2s) | |||
Integration Support (API/SDK) | Basic | Full | Full + Custom |
Ongoing Monitoring & Alerting | 7/24 Automated | 7/24 Dedicated | |
Incident Response SLA | Best Effort | < 24 Hours | < 4 Hours |
Team Training & Documentation | |||
Annual Maintenance & Updates | Optional | Included | Included + Roadmap |
Typical Delivery Timeline | 6-8 Weeks | 8-12 Weeks | 12-16 Weeks |
Starting Price | $25,000 | $75,000 | Custom Quote |
how-we-deliver
PROVEN PROCESS
Our Development & Delivery Methodology
We deliver production-ready shielded wallet infrastructure through a structured, security-first approach that de-risks development and accelerates your time-to-market.
01
Architecture & Threat Modeling
We begin with a comprehensive threat model for your specific use case, designing a zero-knowledge proof (ZKP) architecture on frameworks like Halo2 or Noir to ensure privacy guarantees are mathematically sound from day one.
1-2 weeks
Design Phase
100%
Audit-Ready Specs
02
Secure Circuit Development
Our cryptographers implement and optimize the core privacy circuits. We focus on gas efficiency and proof generation speed, leveraging Plonk or Groth16 proving systems to minimize user costs.
< 5 sec
Proof Gen Target
ZK-SNARK/STARK
Proving System
03
Smart Contract & SDK Integration
We deploy audited, upgradeable smart contracts for state management and develop a TypeScript/React SDK for seamless frontend integration, handling key management and proof submission.
OpenZeppelin
Security Standard
2-3 weeks
Integration Ready
04
Rigorous Security Audits
Every component undergoes internal review followed by a third-party audit from firms like Spearbit or Zellic. We provide a full vulnerability report and remediation before mainnet deployment.
2+ Audits
Per Component
CertiK
Audit Partners
05
Staged Deployment & Monitoring
We deploy to testnet, run a bug bounty program, and gradually roll out to mainnet with real-time monitoring for anomalous transactions and proof verification failures.
24/7
Alerting
Testnet First
Deployment Rule
06
Documentation & Handoff
We deliver comprehensive technical documentation, operational runbooks, and provide knowledge transfer to your team, ensuring you have full ownership and operational control.
Full Source
Code Ownership
2 weeks
Support Handoff
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
We architect and deploy custom smart contracts for DeFi, NFTs, and enterprise applications. Our team delivers audit-ready code in Solidity, Rust, or Vyper with a focus on security, gas efficiency, and upgradability.
- Security-First Development: Contracts built with
OpenZeppelinstandards and undergo internal review before your audit. - Gas Optimization: We reduce transaction costs by 15-40% through efficient data structures and opcode patterns.
- Full Lifecycle Support: From initial spec to mainnet deployment and post-launch maintenance.
We deliver contracts you can trust, with a 99.9% uptime SLA and a documented process that has secured over $500M+ in on-chain value for our clients.
Technical & Commercial Insights
Frequently Asked Questions on Shielded Wallet Development
Get clear, specific answers to the most common questions CTOs and founders ask when evaluating a shielded wallet development partner.
A production-ready shielded wallet MVP with core privacy features (private transfers, shielded balances) typically deploys in 2-4 weeks. Full-featured suites with multi-asset support, cross-chain privacy, and custom compliance modules take 6-10 weeks. We provide a detailed sprint plan during discovery to lock in deliverables and dates.
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