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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

Encrypted Data Marketplace Development

We build decentralized platforms for trading AI training data and model access where data remains encrypted. Our solutions use token-gated access and cryptographic proofs to ensure privacy, provenance, and monetization without compromise.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built for scale and compliance.

We architect and deploy custom smart contracts that form the immutable business logic of your application. Our development process ensures security-first design, gas optimization, and full audit readiness from day one.

  • Custom Logic: Tailored Solidity or Rust contracts for DeFi, NFTs, DAOs, and enterprise use cases.
  • Security Framework: Built with OpenZeppelin standards, formal verification, and comprehensive unit testing.
  • Deployment & Management: Full lifecycle support from testnet to mainnet, including upgradeable proxy patterns.

Reduce your time-to-market and technical risk with battle-tested contracts that just work.

We deliver production-grade code with documented architecture, clear variable naming, and modular design. Every contract undergoes peer review and static analysis before delivery, ensuring you receive a secure, maintainable asset—not just a code drop.

key-features-cards
END-TO-END DEVELOPMENT

Core Technical Capabilities We Deliver

We architect and build secure, scalable data marketplaces with production-ready infrastructure, from core smart contracts to enterprise-grade APIs.

01

Zero-Knowledge Data Verification

Implement ZK-SNARKs and ZK-STARKs to enable private data validation. Clients can prove data authenticity and compliance without exposing raw information, unlocking new B2B revenue streams.

zk-SNARKs
Proof System
< 500ms
Proof Generation
EXPLORE
02

Secure Multi-Party Computation (MPC)

Deploy MPC protocols for collaborative data analysis across multiple parties. Enables joint insights on encrypted datasets while preserving individual data sovereignty and privacy.

Threshold Sig.
Key Model
FHE Compatible
Integration
EXPLORE
03

On-Chain Access Control & Monetization

Develop custom ERC-721/1155-based licensing smart contracts with granular permissions, automated royalty distribution, and real-time usage auditing for transparent, trustless data sales.

ERC-721/1155
Token Standard
Real-time
Royalty Splits
EXPLORE
04

High-Performance Data Oracles

Build custom oracle networks for secure, verifiable off-chain data ingestion. Features cryptographic attestations and decentralized validation to feed real-world data into your marketplace logic.

Sub-second
Update Latency
> 10 Data Feeds
Supported Sources
EXPLORE
05

Enterprise-Grade APIs & SDKs

Deliver fully documented REST & GraphQL APIs with TypeScript/Go/Python SDKs. Includes rate limiting, authentication, and webhook support for seamless integration into existing enterprise stacks.

REST/GraphQL
API Types
3+ SDKs
Language Support
EXPLORE
06

Security & Compliance by Design

All components undergo formal verification and audits by leading firms. We implement privacy-preserving designs compliant with GDPR and CCPA, with detailed audit trails for regulators.

Formal Verification
Methodology
GDPR/CCPA
Compliance Ready
EXPLORE
benefits
TANGIBLE RESULTS

Business Outcomes for Your AI Venture

Beyond building a marketplace, we deliver measurable business value that accelerates your AI venture's growth and defensibility.

01

Monetize Data Assets in Weeks

Launch a compliant, secure data marketplace in 4-6 weeks, not months. Our proven development framework and pre-audited smart contracts accelerate your time-to-revenue.

4-6 weeks
Time to Launch
Pre-audited
Smart Contracts
02

Unlock Premium Data Pricing

Implement verifiable privacy-preserving compute (e.g., FHE, ZKPs) to allow data analysis without raw data exposure. This enables premium pricing models for sensitive datasets.

Zero-Knowledge
Proof Integration
Premium Models
Pricing Strategy
03

Build a Trusted Data Brand

Integrate Chainlink or API3 oracles for verifiable data provenance and quality attestations. Build market trust and reduce buyer friction with cryptographically guaranteed data lineage.

On-Chain
Provenance
Oracle-Verified
Data Quality
04

Capture Recurring Revenue Streams

Deploy smart contracts for subscription-based data access, usage-based billing, and automated royalty distributions to data providers, ensuring predictable, scalable revenue.

Automated
Royalty Payouts
Smart Contract
Billing Logic
05

Future-Proof with Interoperability

Architect your marketplace with cross-chain capabilities (e.g., via Axelar, Wormhole) from day one, enabling access to data and liquidity across Ethereum, Solana, and other major ecosystems.

Multi-Chain
Architecture
EVM & Non-EVM
Compatibility
06

Ensure Regulatory Resilience

Build with compliance-by-design: data access controls, GDPR/CCPA-ready consent mechanisms, and audit trails. Protect your venture from regulatory risk as data laws evolve.

Compliance-by-Design
Framework
Granular
Access Controls
Tailored for Your Market Stage

Structured Development Tiers

Choose the development package that matches your encrypted data marketplace's complexity, compliance needs, and go-to-market timeline.

Core CapabilityStarterProfessionalEnterprise

Smart Contract Suite (Data Listings, Access Control, Payments)

End-to-End Encryption (Client-Side Key Management)

Basic

Advanced (ZK-Proofs)

Custom (FHE/MPC)

On-Chain Data Provenance & Audit Trail

Compliance Module (GDPR/CCPA Right-to-Delete)

Custom Oracle Integration for Off-Chain Data

1 Standard Oracle

Multi-Oracle, Custom Adapters

Frontend DApp (React/Next.js)

Template-Based

Custom UI/UX

White-Label Branded

Security Audit & Penetration Testing

Automated Scan

Manual Review by Partner Firm

Comprehensive Audit + Bug Bounty Setup

Deployment & Multi-Chain Support

Single EVM Chain

Up to 3 EVM Chains

Multi-Chain (EVM & Non-EVM)

Post-Launch Support & SLA

30 Days Email

6 Months Priority

12+ Months, 24/7 Dedicated

Estimated Timeline

4-6 Weeks

8-12 Weeks

12+ Weeks

Starting Engagement

$25,000

$75,000

Custom Quote

how-we-deliver
PROVEN PROCESS

Our Development Methodology

We deliver secure, scalable encrypted data marketplaces through a structured, client-focused development lifecycle. Our methodology ensures predictable delivery, robust security, and seamless integration with your existing systems.

01

Discovery & Architecture Design

We begin with a deep technical dive to define your marketplace's data models, access control logic, and tokenomics. We deliver a comprehensive technical specification and architecture diagram for stakeholder sign-off.

1-2 weeks
Specification Phase
100%
Client Sign-off
02

Smart Contract Development

Our engineers build core marketplace logic—data listing, access token minting (ERC-1155/ERC-20), and revenue splits—using Solidity 0.8+ with OpenZeppelin libraries. Every contract is optimized for gas efficiency and upgradability.

OpenZeppelin
Security Standard
Gas-Optimized
Contract Design
03

Encryption & Access Layer

We implement client-side encryption (using libraries like libsodium) and secure key management. Access control is enforced via on-chain verification, ensuring only token holders can decrypt purchased data.

Client-Side
Encryption
On-Chain
Access Proof
04

Frontend & API Integration

We develop a responsive React/Next.js frontend with integrated Web3 wallets (MetaMask, WalletConnect) and a backend API for off-chain data storage, indexing, and user management.

React/Next.js
Frontend Stack
REST/GraphQL
API Options
05

Security Audit & Testing

All smart contracts undergo rigorous unit, integration, and scenario testing. We facilitate third-party audits with firms like CertiK or Quantstamp and implement all critical recommendations before mainnet deployment.

Third-Party
Security Audit
100%
Test Coverage
06

Deployment & DevOps

We manage the deployment to your chosen EVM network (Ethereum, Polygon, Arbitrum) with automated CI/CD pipelines. We provide infrastructure monitoring, IPFS pinning services, and post-launch support SLAs.

Multi-Chain
Deployment Ready
24/7
Monitoring
Encrypted Data Marketplace Development

Frequently Asked Questions

Get clear, specific answers about our development process, security, and delivery for your encrypted data marketplace.

A core MVP with essential features like data listing, encrypted storage, and tokenized access control typically deploys in 4-6 weeks. Full-featured platforms with advanced monetization models, multi-chain support, and custom oracles can take 8-12 weeks. We provide a detailed project plan with milestones after the initial discovery phase.

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