We architect and deploy audit-ready smart contracts that power your core business logic. Our development process is built on Solidity 0.8+ with OpenZeppelin standards, ensuring security and gas efficiency from day one.
LABS
Services
ZK Data Marketplace API & SDK Development
We build production-ready REST/GraphQL APIs and client SDKs that abstract the complexity of zero-knowledge data marketplaces, enabling your team to integrate private data exchange in 4-6 weeks.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
From concept to mainnet, we deliver contracts that are secure by design and built for your specific use case.
- Token Systems: Custom
ERC-20,ERC-721, andERC-1155implementations with advanced features like vesting, minting controls, and governance hooks. - DeFi Protocols: Automated Market Makers (AMMs), lending/borrowing pools, staking mechanisms, and yield aggregators.
- Enterprise Logic: Multi-signature wallets, asset tokenization platforms, and compliant KYC/AML integration modules.
- Full Lifecycle Support: Development, comprehensive testing, audit preparation, deployment, and post-launch monitoring.
key-features-cards
ENTERPRISE-GRADE BUILDING BLOCKS
Core API & SDK Capabilities We Deliver
Our production-ready ZK Data Marketplace infrastructure provides the foundational components to launch, scale, and secure your application. We deliver battle-tested, audited code with guaranteed SLAs.
benefits
DELIVERABLES
Business Outcomes: Integrate Faster, Scale Securely
Our ZK Data Marketplace API & SDK Development service delivers concrete, production-ready infrastructure. We focus on measurable results that accelerate your time-to-market and ensure enterprise-grade security.
01
Production-Ready API Endpoints
Deploy with a fully documented, versioned REST & WebSocket API for on-chain data querying, proof generation, and marketplace operations. Includes rate limiting, authentication, and comprehensive error handling.
< 2 weeks
Integration Time
99.9%
API Uptime SLA
02
Modular SDK for Key Languages
Get client libraries for TypeScript/JavaScript, Python, and Go. Each SDK includes typed interfaces, comprehensive examples, and built-in retry logic for seamless developer integration.
3+
Core Languages
100+
Unit Tests
03
Zero-Knowledge Proof Infrastructure
Implement privacy-preserving data verification with custom circuits (Circom, Halo2) and proof systems (Groth16, PLONK). We handle the complexity of proof generation, verification, and on-chain settlement.
< 5 sec
Proof Generation
Gas-optimized
Verifier Contracts
04
Security-First Architecture
Build on a foundation of security best practices. Includes formal verification for critical circuits, integration with OpenZeppelin Defender for operations, and adherence to SOC 2 Type II principles.
Audited
Smart Contracts
SOC 2 Aligned
Infrastructure
05
Scalable Data Indexing & Availability
Access real-time, indexed data from Ethereum, Polygon, and other EVM chains. Our infrastructure ensures high availability for historical and real-time state queries with configurable caching layers.
Sub-second
Query Latency
Multi-chain
Data Sources
06
Comprehensive Documentation & Support
Accelerate your team's onboarding with API references, integration guides, and architecture diagrams. Includes dedicated technical support during integration and access to a private developer channel.
24/7
Critical Support
Dedicated
Technical Lead
ZK Data Marketplace API & SDK
Structured Development Packages
Compare our tiered development packages designed to accelerate your go-to-market timeline and manage technical risk.
| Feature / Deliverable | Starter | Professional | Enterprise |
|---|---|---|---|
ZK-Circuit Development & Integration | |||
Custom Data Schema & Indexing API | Basic | Advanced | Fully Custom |
Multi-Chain SDK (EVM, Solana, etc.) | EVM Only | 2 Chains | Unlimited |
Smart Contract Audit (External) | 1 Audit Pass | 2 Audit Passes | Continuous Auditing |
Deployment & Infrastructure Setup | Self-Service | Guided | Fully Managed |
Technical Support & SLA | Email (Biz Hours) | Slack (12h) | Dedicated (4h) |
Uptime & Performance Monitoring | Basic Dashboards | 99.9% SLA + Alerts | |
Custom Integration Support | Up to 2 | Unlimited | |
Estimated Timeline | 6-8 Weeks | 8-12 Weeks | 12+ Weeks |
Starting Price | $50,000 | $150,000 | Custom Quote |
how-we-deliver
TRANSPARENT & PREDICTABLE
Our Development Process: From Specification to Production
A structured, milestone-driven approach that ensures your ZK Data Marketplace launches on time, on budget, and with enterprise-grade security. We provide clear deliverables at every phase, from initial design to production deployment and ongoing support.
01
Phase 1: Discovery & Specification
We conduct a technical deep-dive to define your data schema, privacy requirements, and integration points. Deliverables include a comprehensive technical specification document and a detailed project roadmap.
Client Value: Eliminates scope creep and aligns all stakeholders on a clear, actionable plan from day one.
1-2 weeks
Typical Duration
100%
Scope Clarity
02
Phase 2: Architecture & Smart Contract Design
Our architects design the core ZK-circuits, data attestation logic, and marketplace smart contracts. We select the optimal proving system (e.g., Circom, Halo2) and L1/L2 settlement layer.
Client Value: A future-proof, scalable architecture that minimizes gas costs and ensures data integrity and privacy guarantees.
Zero-Knowledge
Proof System
OpenZeppelin
Security Standard
03
Phase 3: Core SDK & API Development
We build the developer-facing SDK for data submission/querying and the backend APIs for marketplace operations. Includes comprehensive documentation and code examples in TypeScript/Python.
Client Value: Your engineering team gets production-ready tools to integrate the marketplace into your application in days, not months.
TypeScript
Primary SDK
REST & GraphQL
API Support
04
Phase 4: Security Audit & Penetration Testing
Every line of code—from ZK circuits to smart contracts—undergoes rigorous internal review followed by a formal audit with a top-tier security firm. We remediate all critical/high issues before proceeding.
Client Value: Mitigates existential risk. Provides you and your users with verified security assurances for handling sensitive data.
External Audit
Mandatory Step
Critical = 0
Release Criteria
05
Phase 5: Staging Deployment & Integration Testing
We deploy the complete system to a staging environment matching production specs. We execute end-to-end integration tests, load tests, and assist your team with their first integration.
Client Value: Identifies environment-specific issues early. Gives your team confidence before the mainnet launch.
Testnet
Deployment Target
E2E Test Suite
Included
06
Phase 6: Production Launch & Ongoing Support
We manage the mainnet deployment, configure monitoring/alerting, and provide launch support. Includes 30 days of post-launch support and options for ongoing maintenance and feature development.
Client Value: A smooth, managed go-live and a reliable partner for the long-term evolution of your data marketplace.
99.9%
Uptime SLA
24/7
Launch Support
security-approach
CORE SERVICE
Smart Contract Development
Secure, audited smart contract development for DeFi, NFTs, and enterprise applications.
We build production-ready smart contracts on EVM-compatible chains (Ethereum, Polygon, Arbitrum) and Solana. Our process delivers secure-by-design code with formal verification and multi-audit requirements.
- Custom DeFi Logic: DEXs, lending protocols, yield aggregators, and automated strategies.
- NFT & Token Standards:
ERC-20,ERC-721,ERC-1155, and custom implementations with advanced minting. - Enterprise Systems: Supply chain tracking, asset tokenization, and secure multi-signature wallets.
- Full Audit Trail: Code review, automated testing (
Hardhat,Foundry), and integration with leading audit firms.
Deploy battle-tested contracts in 2-4 weeks with a 99.9% uptime SLA and zero critical vulnerabilities post-audit.
ZK Data Marketplace Development
Frequently Asked Questions
Get clear answers on our process, timelines, and technical approach for building secure, scalable ZK data marketplaces.
From initial design to mainnet deployment, a typical project takes 6-10 weeks. This includes 2 weeks for architecture and smart contract design, 3-4 weeks for core development and SDK integration, 1-2 weeks for internal security review, and 1-2 weeks for deployment and final testing. For proof-of-concept MVPs, we can deliver a functional demo in as little as 3 weeks.
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