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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

ZK Identity Protocol Development

We engineer custom zero-knowledge identity protocols for applications requiring private, verifiable credentials. Our team delivers production-ready circuits, proof systems, and on-chain verification logic tailored to your compliance and user experience requirements.
Chainscore © 2026
overview
CORE INFRASTRUCTURE

Smart Contract Development

Secure, audited smart contracts built to your exact specifications.

We architect and deploy production-ready smart contracts on EVM and Solana networks. Our development process is built for security and speed, delivering a custom MVP in 2-3 weeks.

  • Full Lifecycle Development: From ideation and Solidity/Rust coding to deployment and on-chain verification.
  • Security-First: Contracts are built with OpenZeppelin standards and undergo rigorous internal audits before external review.
  • Gas Optimization: We write efficient code to minimize transaction costs, a critical factor for user adoption.

We don't just write code; we deliver secure, auditable, and maintainable blockchain logic that forms the foundation of your application.

key-features-cards
END-TO-END ZK IDENTITY SOLUTIONS

What We Deliver

We architect and deploy production-ready ZK identity protocols that secure user data while enabling seamless Web3 interactions. Our focus is on delivering audited, scalable infrastructure that gets your product to market faster.

01

Custom ZK-Circuit Design

We design and implement zero-knowledge circuits tailored to your use case—from age verification to credit scoring—using Circom and Halo2. Our circuits are optimized for minimal proof generation time and on-chain verification cost.

Circom 2.1+
Framework
< 2 sec
Avg. Proof Gen
02

On-Chain Verifier Contracts

Deployment of highly gas-optimized Solidity verifiers for your ZK circuits. We ensure compatibility with EVM chains (Ethereum, Polygon, Arbitrum) and L2s, with built-in upgradeability patterns for future-proofing.

Solidity 0.8+
Language
OpenZeppelin
Security
04

Security & Audit Readiness

Comprehensive security review of your entire ZK stack, from circuit logic to verifier contracts. We prepare your protocol for formal audits with firms like Trail of Bits and provide remediation support.

100% Test Coverage
Requirement
Audit-Ready
Delivery State
05

Credential Issuance Gateway

A secure, scalable backend service for trusted entities to issue verifiable credentials (W3C VC standard). Supports selective disclosure and revocation, built with privacy-by-design principles.

W3C VC Compliant
Standard
99.9% SLA
Uptime
06

Integration & Deployment

Full-stack integration of the ZK identity protocol into your existing application. We handle DevOps, monitoring, and provide documentation, enabling your team to own and scale the system.

2-4 Weeks
Avg. Timeline
24/7 Support
Post-Launch
benefits
DELIVERABLES

Business Outcomes for Your Product

Our ZK Identity Protocol Development delivers tangible infrastructure and measurable results, not just theoretical concepts. We build production-ready systems that directly impact your product's security, compliance, and user experience.

01

Production-Ready ZK Circuits

We deliver custom-built, audited zero-knowledge circuits for identity verification, enabling privacy-preserving KYC/AML checks and credential issuance without exposing user data. Built with Circom and SnarkJS for optimal proving times.

< 2 sec
Avg. Proof Generation
100%
Formal Verification
02

Compliant Identity Wallets

Deploy secure, non-custodial wallets (ERC-4337 Account Abstraction) that manage verifiable credentials (W3C VC-DM). Integrates with existing KYC providers and supports selective disclosure for regulatory compliance.

SOC 2
Compliance Framework
W3C
Standards Compliant
03

Scalable Attestation Registry

A high-throughput on-chain registry (built on Ethereum L2s like zkSync or Polygon zkEVM) for issuing and revoking credentials. Features gas-optimized smart contracts with sub-cent transaction costs for mass adoption.

10k+ TPS
Attestation Capacity
< $0.01
Avg. Tx Cost
04

End-to-End Security Audit

Comprehensive security review covering ZK circuits, smart contracts, and frontend integration. Delivered with a final report from our in-house experts, following practices aligned with OpenZeppelin and Trail of Bits.

100%
Critical Issue Resolution
CertiK
Audit Partner
05

Developer SDK & API

A fully documented TypeScript/Go SDK and REST API for seamless integration into your existing application stack. Includes sample dApps, testing suites, and dedicated technical support.

< 1 day
Integration Time
24/7
Dev Support SLA
06

Custom Integration & Migration

We handle the complete integration with your user database, legacy systems, or existing blockchain infrastructure. Specialized in migrating from centralized identity systems to decentralized, ZK-powered protocols.

2-4 weeks
Typical Timeline
Zero-Downtime
Migration Guarantee
Choose Your Path to Production

ZK Identity Protocol Development Tiers

Transparent, outcome-focused packages for launching secure, compliant ZK identity solutions. Each tier includes full source code, documentation, and our standard security audit.

Core DeliverablesStarterProfessionalEnterprise

Custom ZK Circuit Design & Implementation

Solidity Smart Contracts (ERC-4337, ERC-20/721)

Basic Set

Full Suite

Full Suite + Extensions

Security Audit by 3rd Party

1 Round

2 Rounds + Remediation

3 Rounds + Formal Verification

On-Chain Deployment & Configuration

1 Testnet

1 Mainnet + 2 Testnets

Multi-Chain Deployment

Integration Support (SDK/API)

Documentation Only

Up to 20 Hours

Dedicated Engineer

Compliance Review (GDPR, Travel Rule)

Post-Launch Monitoring & Alerting

30 Days

90 Days

12 Months SLA

Incident Response SLA

Next Business Day

< 4 Hours

Team Training & Knowledge Transfer

2 Sessions

Custom Workshop

Estimated Timeline

6-8 Weeks

10-14 Weeks

Custom

Starting Investment

$45,000

$120,000

Custom Quote

how-we-deliver
PROVEN PROCESS

Our Development Methodology

We deliver production-ready ZK identity protocols through a structured, security-first approach that de-risks development and accelerates your time-to-market.

01

Architecture & Protocol Design

We design your ZK identity system's core architecture, selecting optimal proving systems (e.g., Circom, Halo2) and defining the trust model, credential schemas, and on/off-chain data flows.

2-4 weeks
Design Phase
3+ Options
Architecture Reviewed
02

Circuit Development & Optimization

Our engineers write and rigorously optimize zero-knowledge circuits for credential issuance, proof generation, and verification, focusing on proof size and verification gas costs.

> 40%
Avg. Gas Reduction
Circom/Noir
Circuit Languages
03

Security Audits & Formal Verification

Every component undergoes internal review and external audit by firms like Spearbit or OtterSec. We employ formal verification tools for critical circuit logic.

2 Rounds
Minimum Audits
Zero Critical
Post-Audit Bugs
04

Smart Contract Integration

We deploy and integrate verifier contracts (e.g., Solidity, Cairo) with your application, implementing gas-efficient proof verification and secure state management.

< 200k Gas
Target Verification
OpenZeppelin
Security Standards
05

SDK & Developer Tooling

We provide client-side SDKs (TypeScript/JS) for seamless integration, handling proof generation, wallet interactions, and API communications.

TypeScript
Primary SDK
< 1 Day
Integration Time
06

Deployment & Ongoing Support

We manage mainnet deployment, establish monitoring for proof success rates, and provide ongoing support with defined SLAs for upgrades and maintenance.

99.5% SLA
System Uptime
24/7
Critical Support
ZK Identity Protocol Development

Frequently Asked Questions

Get clear answers on our process, timelines, security, and support for building your private identity layer.

We deliver a production-ready ZK identity protocol in 6-10 weeks from kickoff to mainnet deployment. This includes a 2-week discovery and architecture phase, 3-5 weeks of core development and circuit design, and 1-2 weeks for security audits and deployment. Complex integrations (e.g., with existing KYC systems) may extend this by 1-2 weeks.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team