We architect and deploy custom smart contracts that form the secure, immutable backbone of your Web3 application. Our development process is built on audited code patterns and a deep understanding of gas optimization and upgradeability.
LABS
Services
EVM Data Marketplace Core Development
We architect and build secure, production-ready data marketplaces for DePIN and IoT networks. From custom data schemas to on-chain licensing and provider dashboards, we deliver the complete core infrastructure.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
- From Specification to Mainnet: We handle the full lifecycle—design, development, testing, and deployment—ensuring zero critical vulnerabilities before launch.
- Protocol Expertise: Proficient in
ERC-20,ERC-721,ERC-1155,ERC-4626, and custom standards for DeFi, NFTs, and DAOs. - Security-First: Every contract undergoes rigorous unit/integration testing and is structured for future-proofing via proxy patterns.
Deliver a battle-tested, gas-efficient smart contract system in as little as 4 weeks, giving you a secure foundation to build upon.
key-features-cards
PRODUCTION-READY MODULES
Core Marketplace Features We Deliver
We deliver battle-tested, modular EVM marketplace components that accelerate your time-to-market while ensuring enterprise-grade security and scalability.
01
Secure Smart Contract Suite
Production-ready ERC-721/1155 marketplace contracts with built-in royalty enforcement, secure escrow logic, and gas-optimized batch operations. All contracts are built with OpenZeppelin standards and undergo rigorous security audits.
OpenZeppelin
Security Standard
100%
Test Coverage
02
Real-Time Indexing & APIs
High-performance Graph Protocol subgraphs and REST/WebSocket APIs for real-time NFT listings, sales history, and user portfolio data. Eliminates the need for complex RPC node management.
< 100ms
API Latency
Sub-second
Indexing
03
Multi-Chain Deployment
Seamless deployment across Ethereum, Polygon, Arbitrum, and other EVM-compatible L2s. Our architecture abstracts chain-specific complexities, providing a unified interface for your users.
5+
Supported Chains
1 Codebase
Unified Logic
04
Advanced Trading Engine
Support for fixed-price sales, timed auctions (English/Dutch), and bundle offers. Includes off-chain signature validation (EIP-712) for gasless listings and a robust bid management system.
Zero Gas
Listings (Optional)
3+
Auction Types
05
Enterprise Admin Dashboard
Comprehensive admin panel for managing collections, moderating listings, configuring fees, and viewing platform analytics. Role-based access control ensures secure operations.
RBAC
Access Control
Real-time
Analytics
06
Scalable Payment Infrastructure
Integrated payment rails supporting native ETH, stablecoins (USDC, DAI), and fiat on-ramps. Features multi-sig treasury management and automated royalty distribution to creators.
ERC-20 & Fiat
Payment Options
Auto-split
Royalty Payouts
benefits
EXPERTISE & DELIVERY
Why Partner with Chainscore for Your Data Marketplace
We deliver production-ready EVM data marketplace cores, not just prototypes. Our focus is on security, scalability, and rapid time-to-market for FinTechs and Web3 startups.
01
Security-First Architecture
Every marketplace core is built with OpenZeppelin libraries and undergoes rigorous internal audits. We implement role-based access control, secure oracle integrations, and comprehensive event logging from day one.
Zero
Critical Vulnerabilities Shipped
100%
OpenZeppelin Compliance
02
Rapid Deployment Framework
Leverage our modular, pre-audited components for data listing, staking, and dispute resolution. Go from concept to testnet in weeks, not months, with our battle-tested development templates.
< 4 weeks
To Testnet MVP
50+
Reusable Modules
03
Multi-Chain EVM Expertise
Deploy your marketplace on Ethereum, Polygon, Arbitrum, or any EVM-compatible chain. We handle chain-specific optimizations for gas costs, block times, and bridging logic.
10+
Supported EVM Chains
40% avg.
Gas Cost Reduction
04
Scalable Data & Oracle Integration
Seamlessly integrate with Chainlink, Pyth, or custom oracles. Our architecture supports high-frequency data feeds and verifiable off-chain computation for complex datasets.
Sub-second
Data Finality
5+
Oracle Protocols Supported
05
Custom Tokenomics & Incentives
Design and implement staking mechanisms, fee-sharing models, and governance tokens (ERC-20/ERC-1155) tailored to your marketplace's economic model and user incentives.
ERC-20/1155
Token Standards
Custom
Fee & Reward Engines
06
Post-Launch Support & Monitoring
Receive detailed analytics dashboards, smart contract upgradeability patterns, and 24/7 monitoring for transaction failures and security events. We ensure your marketplace operates smoothly.
24/7
Health Monitoring
Proactive
Alerting & Patching
Choose Your Path to Production
Structured Development Packages
Compare our fixed-scope packages for building a secure, production-ready EVM data marketplace core. Each tier includes full smart contract development, testing, and deployment.
| Core Deliverables | Launch Package | Scale Package | Enterprise Suite |
|---|---|---|---|
Custom Smart Contract Suite | |||
Comprehensive Security Audit | 1 Round | 2 Rounds | 3 Rounds + Formal Verification |
Multi-Chain Deployment | 1 Network | Up to 3 Networks | Unlimited Networks |
Integration Support | Basic (EVM RPC) | Advanced (Oracles, Indexers) | Full (Custom Adapters) |
Data Schema & API Design | Standard Templates | Custom Schemas | White-Glove Design Session |
Performance Testing | Up to 1K TPS | Up to 10K TPS | Custom Load & Stress Testing |
Post-Launch Support | 30 Days | 90 Days | 1 Year SLA |
Team Training & Documentation | Basic Docs | Technical Workshops | Dedicated Architect Sessions |
Estimated Timeline | 6-8 Weeks | 10-12 Weeks | Custom Sprint Plan |
Starting Investment | $75,000 | $150,000 | Contact for Quote |
how-we-deliver
METHODOLOGY
Our Development Process
A structured, transparent approach to building secure and scalable EVM data marketplaces. We deliver production-ready code with clear milestones and predictable timelines.
01
Discovery & Architecture Design
We analyze your data types, monetization model, and target users to design a scalable marketplace architecture. Deliverables include a technical specification, data schema, and smart contract system diagram.
1-2 weeks
Specification Finalization
3+ Models
Architecture Reviewed
02
Core Smart Contract Development
Development of audited, gas-optimized smart contracts for data listing, access control, and payment settlement. Built with Solidity 0.8+ and OpenZeppelin libraries.
OpenZeppelin
Security Standard
Gas Reports
Optimization Included
03
Backend & Indexer Integration
Build the off-chain infrastructure: data ingestion pipelines, Graph Protocol subgraphs for querying, and secure API endpoints for frontend consumption.
Sub-Second
Query Latency
The Graph
Indexing Protocol
04
Frontend & SDK Development
Create a responsive React/Next.js frontend or a white-label SDK for seamless integration. Includes wallet connectivity, data browsing, and transaction flows.
Wagmi/viem
Modern Tooling
TypeScript
Full Type Safety
05
Security Audit & Testing
Rigorous testing suite including unit, integration, and scenario testing. Optional formal audit coordination with leading security firms.
100% Coverage
Unit Tests
CertiK/Quantstamp
Audit Partners
06
Deployment & DevOps
Automated CI/CD deployment to mainnet and testnets. We provide monitoring dashboards, alerting, and documentation for a smooth handover.
99.9% SLA
Infrastructure Uptime
Full Docs
Handover Package
tech-stack
ARCHITECTURE
Technology & Protocol Foundation
We build the core infrastructure for your data marketplace on battle-tested, enterprise-grade protocols. Our foundation ensures scalability, security, and seamless integration from day one.
EVM Data Marketplace Development
Frequently Asked Questions
Get clear answers on our development process, security, and timelines for building a production-ready EVM data marketplace.
A core marketplace MVP with essential features like data listing, on-chain verification, and a basic query engine typically deploys in 4-6 weeks. Full-scale deployments with custom oracles, advanced monetization models, and multi-chain support range from 8-14 weeks. We provide a detailed project plan with weekly 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
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall