We architect and deploy production-ready smart contracts that form the immutable backbone of your application. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and rigorous internal audits before any third-party review.
LABS
Services
Zero-Knowledge Login Systems
Deploy secure, privacy-preserving authentication using zero-knowledge proofs. We build systems that verify user credentials or holdings without exposing sensitive data on-chain, reducing friction and risk.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built by experts to power your Web3 product.
- Custom Logic: Tailored
Solidity 0.8+contracts for DeFi, NFTs, DAOs, and enterprise use cases. - Full Lifecycle: Development, testing (
Hardhat/Foundry), deployment, and upgrade planning via transparent proxies. - Security Guarantee: All code undergoes formal verification and is battle-tested on mainnet before delivery.
We deliver contracts you can trust, reducing time-to-audit by 40% and mitigating critical vulnerabilities before they reach production.
key-features-cards
END-TO-END ARCHITECTURE
Core Components We Deliver
We build production-ready, secure, and scalable zero-knowledge login systems. Each component is engineered to accelerate your time-to-market while ensuring enterprise-grade security and user experience.
01
ZK-Circuit Design & Implementation
Custom zero-knowledge circuits for identity verification and selective disclosure. We implement circuits in Circom or Halo2, optimized for minimal proof generation time and gas costs on-chain.
< 2 sec
Proof Gen Time
Circom/Halo2
Prover Framework
02
Smart Contract Verifier
Gas-optimized Solidity verifier contracts deployed on your target chain (EVM, L2s, app-chains). Includes upgradeability patterns and integration hooks for your dApp logic.
< 200k gas
Avg. Verify Cost
OpenZeppelin
Security Standard
03
Frontend SDK & Wallet Integration
TypeScript/React SDK for seamless integration. Handles proof generation in-browser, wallet connection (MetaMask, WalletConnect), and session management.
< 50 kB
SDK Bundle Size
React/Next.js
Primary Support
04
Relayer Service Infrastructure
Managed backend service to sponsor user transactions, eliminating gas fees for end-users. Includes rate limiting, nonce management, and high-availability deployment.
99.9%
Uptime SLA
Global CDN
Deployment
05
Credential Schema & Issuer Protocol
Design and implementation of W3C-compliant Verifiable Credential schemas. Build secure issuer backends for KYC providers, DAOs, or enterprise systems to mint credentials.
W3C VC
Compliance
JWT/JSON-LD
Format Support
06
Security Audit & Penetration Testing
Comprehensive audit of the entire ZK stack—circuits, contracts, and backend services. Includes a final report and remediation support. Optional continuous monitoring.
CertiK
Audit Partner
Full Report
Deliverable
benefits
TANGIBLE RESULTS
Business Outcomes for Your Product
Our zero-knowledge login systems deliver measurable improvements in user experience, security, and operational efficiency. Here's what you can expect for your platform.
01
Frictionless User Onboarding
Replace complex seed phrases and wallet connections with a simple email or social login. Reduce user drop-off by up to 70% and accelerate user acquisition cycles.
70%
Reduced Drop-off
< 2 min
Avg. Onboarding
02
Enterprise-Grade Security & Compliance
ZK-proofs verify user identity without exposing personal data. Built with OpenZeppelin standards and auditable on-chain, ensuring GDPR/CCPA compliance by design.
100%
Data Privacy
SOC 2
Compliance Ready
03
Seamless Cross-Platform Access
Enable users to access their wallet and assets from any device with a single, recoverable login. Eliminate the risk of permanent fund loss from forgotten keys.
0
Key Loss Risk
Any Device
Access Point
04
Reduced Support & Operational Costs
Drastically cut down on customer support tickets related to lost passwords and wallet recovery. Automate user management with programmable permission layers.
60%
Lower Support Cost
Automated
Recovery Flow
05
Enhanced DeFi & NFT Engagement
Lower the barrier to entry for complex interactions. Users can seamlessly sign transactions for swaps, stakes, and NFT mints without managing private keys.
3x
Higher Engagement
1-Click
Transaction Signing
ZK Login Solutions
Implementation Tiers & Deliverables
Compare our structured service packages for integrating zero-knowledge proof authentication, from foundational setup to enterprise-grade deployment.
| Feature / Deliverable | Starter | Professional | Enterprise |
|---|---|---|---|
ZK-Circuit Development & Audit | |||
Custom Smart Contract Suite | Basic (ERC-4337) | Advanced (ERC-4337 + Session Keys) | Fully Custom (Multi-Chain) |
Frontend SDK & Integration | React Library | React + Mobile SDKs | Full-Stack SDKs & Dedicated Support |
Supported ZK Proof Systems | Groth16 (SnarkJS) | Groth16, Plonk | Groth16, Plonk, Halo2 (Custom Backend) |
Deployment & On-Chain Setup | Testnet Only | Mainnet on 1 Chain | Mainnet on up to 3 Chains |
Ongoing Maintenance & Updates | 6 Months | 12 Months | 24 Months with SLA |
Support & Response Time SLA | Email (48h) | Priority Slack (24h) | Dedicated Engineer (<4h) |
Compliance & Privacy Review | GDPR/CCPA Checklist | Full Legal Framework & Audit Trail | |
Team Training & Documentation | Basic Docs | 2 Technical Workshops | Custom Onboarding Program |
Estimated Timeline | 4-6 Weeks | 8-12 Weeks | 12+ Weeks |
Starting Price | $25,000 | $75,000 | Custom Quote |
how-we-deliver
PROVEN METHODOLOGY
Our Development Process
A structured, security-first approach to deliver production-ready ZK login systems. We focus on reducing your time-to-market while ensuring enterprise-grade security and compliance.
security
FULL-STACK ENGINEERING
Custom Blockchain Development
End-to-end blockchain solutions built for scale, security, and speed to market.
We architect and build bespoke blockchain systems from the ground up. Our full-cycle development delivers production-ready networks, protocols, and applications tailored to your specific business logic and compliance requirements.
- Layer 1 & 2 Networks: Custom
EVM-compatible chains,Substrate-based parachains, andOptimistic/ZK Rollupscaling solutions. - Smart Contract Ecosystems: Secure
Solidity/Rustdevelopment for DeFi, NFTs, and enterprise logic with formal verification. - Node Infrastructure: High-availability validator setups, RPC endpoints, and indexers with 99.9% uptime SLAs.
- Integration & APIs: Seamless bridges to existing systems and comprehensive
REST/GraphQLAPIs for data access.
From initial white paper to mainnet launch, we manage the entire lifecycle—reducing your time-to-market from months to as little as 8 weeks for an MVP.
ZK Login Systems
Frequently Asked Questions
Common questions about implementing secure, private authentication for your Web3 application.
A standard zero-knowledge login integration takes 2-4 weeks from kickoff to production deployment. This includes requirements analysis, smart contract development, frontend SDK integration, and security review. Complex multi-chain or custom identity schemas may 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