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
Zero-Knowledge Identity Wallet Development
We build self-sovereign identity (SSI) wallets with zero-knowledge proofs for high-stakes applications. Deliver user-controlled, privacy-by-design solutions for selective credential disclosure in finance, healthcare, and enterprise.
Chainscore © 2026
overview
CORE SERVICES
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts for your dApp or protocol.
- Security-First Design: Code written in
Solidity 0.8+orRust, followingOpenZeppelinstandards and internal best practices. - Comprehensive Testing: Full suite of unit, integration, and scenario tests using
HardhatorAnchor. - Gas Optimization: Every contract is optimized for efficiency, reducing user transaction costs by up to 40%.
- Deployment & Verification: Full support for mainnet deployment, Etherscan/Solscan verification, and initial configuration.
We don't just write code; we deliver auditable, maintainable, and upgradeable systems that form the trusted backbone of your application.
key-features-cards
BUILDING TRUSTED IDENTITY INFRASTRUCTURE
Core Technical Capabilities
Our development process is built on proven cryptographic primitives and security-first engineering to deliver production-ready wallets that scale.
benefits
DELIVERABLES
Business Outcomes for Your Product
Our Zero-Knowledge Identity Wallet development delivers tangible infrastructure that drives user adoption and business growth. We focus on outcomes you can measure and build upon.
01
Regulatory-Compliant User Onboarding
Implement KYC/AML flows with ZK proofs, enabling compliant onboarding without exposing sensitive user data. Reduces legal risk while maintaining user privacy.
Secured
SOC 2 Type II
Zero-Knowledge
Proof System
02
Cross-Platform Interoperability
Deploy a wallet SDK compatible with web, mobile (iOS/Android), and browser extensions. Enables seamless user experience across all your product's touchpoints.
3 Platforms
Single Codebase
< 100ms
Proof Generation
03
Gas-Optimized On-Chain Verification
Custom ZK circuits and verifier contracts optimized for minimal gas consumption on Ethereum L2s (zkSync, Starknet) and other EVM chains. Directly reduces your operational costs.
~80%
Gas Reduction
EVM + L2
Multi-Chain
04
Enterprise-Grade Security & Audits
Full security lifecycle including circuit design review, smart contract audits by partners like Spearbit, and penetration testing. Delivers a production-ready, secure system.
Audited
By Spearbit
Formal Verification
For Core Circuits
05
Modular Reputation & Credential System
Build a Sybil-resistant reputation layer using verifiable credentials (W3C VC). Enables gated access, loyalty programs, and trustless scoring without centralized databases.
W3C Compliant
Verifiable Credentials
Modular
Plugin Architecture
06
Reduced Time-to-Market
Leverage our battle-tested ZK identity primitives and deployment pipelines. Move from concept to a secure, audited pilot in weeks, not months.
< 8 Weeks
To Pilot
24/7
DevOps Support
use-cases
ENTERPRISE-GRADE SECURITY
Built for High-Stakes Applications
Our ZK identity wallets are engineered for applications where security, compliance, and user trust are non-negotiable. We deliver production-ready solutions for regulated industries.
01
Institutional-Grade Key Management
Secure MPC-based key generation and storage with customizable signing policies. Eliminate single points of failure for institutional custody and high-value transactions.
FIPS 140-2
Compliant HSMs
n-of-m
Signing Schemes
02
Regulatory-Compliant Identity Proofing
Integrate KYC/AML flows with zero-knowledge proofs. Prove user credentials (age, jurisdiction, accreditation) without exposing raw data, ensuring privacy-by-design compliance.
eIDAS
& GDPR Ready
< 2s
Proof Generation
04
Cross-Chain & Multi-Asset Support
Unified identity wallet that works across EVM, Solana, and Cosmos ecosystems. Manage credentials and authorize transactions for any asset type from a single, recoverable identity.
10+
Networks Supported
ERC-4337
Account Abstraction
05
Real-Time Threat Monitoring
Proactive security layer detecting anomalous transaction patterns and phishing attempts. Customizable alerting and automatic transaction blocking for institutional risk management.
< 100ms
Threat Detection
SOC 2
Type II Certified
06
Scalable Session Management
Implement persistent, revocable sessions with granular permissions. Users sign once for extended periods, enabling seamless DeFi interactions and dApp experiences without constant pop-ups.
1M+
TPS Capable
JWZ
Proof Standard
ZK Identity Wallet Development
Phased Development Tiers
A structured approach to building a production-ready, secure, and scalable zero-knowledge identity wallet, from MVP to enterprise-grade deployment.
| Core Deliverables | Proof-of-Concept | Production-Ready | Enterprise Scale |
|---|---|---|---|
Custom ZK Circuit Design & Implementation | |||
On-Chain Verifier Smart Contracts | Basic (1 chain) | Multi-chain (EVM + 2) | Custom (EVM + L2s + non-EVM) |
SDK & API for App Integration | Basic Node.js SDK | Full SDK Suite (Web, Mobile) | White-label SDK with Branding |
Security Audit Scope | Internal Review | Third-Party Audit (1 firm) | Comprehensive Audit (2+ firms) |
Deployment & Infrastructure | Testnet Only | Mainnet + Relayer Service | Multi-region, High-Availability Relayer |
Compliance Features (KYC/AML hooks) | Modular Integration | Custom Compliance Engine | |
Ongoing Support & Maintenance | 30 days | 6 months | 12-month SLA (99.9% uptime) |
Team Expertise Access | Lead Developer | Full Dev Team + Architect | Dedicated Technical Account Manager |
Estimated Timeline | 4-6 weeks | 8-12 weeks | 12+ weeks |
Starting Investment | $25K - $50K | $80K - $150K | Custom Quote |
how-we-deliver
PROVEN PROCESS
Our Development Methodology
Our systematic approach to zero-knowledge identity wallet development ensures security, compliance, and a seamless user experience from day one. We deliver production-ready solutions, not just prototypes.
01
Architecture & Protocol Design
We design custom ZK circuits and wallet architectures using industry standards like Semaphore and zk-SNARKs (Groth16/Plonk), ensuring optimal gas efficiency and proof generation speed for your specific use case.
< 2 sec
Proof Generation
~0.01 ETH
Avg. User Gas Cost
02
Secure Smart Contract Development
We write, test, and deploy audited smart contracts for identity verification and credential management using Solidity 0.8+ with OpenZeppelin libraries, implementing role-based access control and upgradeability patterns.
100%
Test Coverage
2+ Audits
Per Contract
03
Frontend SDK & Integration
We provide a TypeScript SDK and React components for seamless integration, handling ZK proof generation client-side with WebAssembly (WASM) for performance and supporting wallets like MetaMask and WalletConnect.
< 1 week
Integration Time
5+ Chains
Multi-Chain Support
ZK Identity Wallet Development
Frequently Asked Questions
Get clear answers on timelines, costs, and technical details for your ZK identity wallet project.
For a production-ready, audited ZK identity wallet with core features (key management, proof generation, basic integrations), the typical timeline is 6-10 weeks. This includes 2-3 weeks for architecture and smart contract development, 2-3 weeks for frontend and SDK integration, and 2-4 weeks for security audits and final deployment. Complex requirements like custom credential schemas or multi-chain support can extend this timeline. We provide a detailed project plan within the first week of engagement.
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