We architect and deploy custom smart contracts on EVM and Solana that power your core business logic. Our development process is built for security and speed, delivering a production-ready MVP in 2-3 weeks.
LABS
Services
Cross-Chain NFT Metadata Indexing
We build and manage high-performance APIs that index, cache, and serve NFT metadata and ownership history across Ethereum, Solana, Polygon, and other major chains for portfolio trackers and discovery platforms.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Security-First Development: Code written in
Solidity 0.8+orRustusingOpenZeppelinpatterns, followed by third-party audits from firms like CertiK or Halborn. - Gas Optimization: Every contract is profiled and optimized to reduce user transaction costs by up to 40%.
- Full-Stack Integration: We deliver contracts with comprehensive testing suites and integrate them with your front-end and backend via
ethers.js/web3.js.
We don't just write code; we deliver audited, gas-efficient infrastructure that your users and investors can trust.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Capabilities of Our Indexing Engine
Our specialized engine delivers the real-time, reliable NFT data layer your application requires, built for scale and security from the ground up.
benefits
PROVEN RESULTS
Business Outcomes for Your Product
Our cross-chain NFT metadata indexing service delivers measurable improvements to your product's performance, user experience, and operational efficiency. Here's what you can expect.
01
Real-Time Data Availability
Serve NFT metadata (traits, images, attributes) with sub-second latency across Ethereum, Polygon, and Solana. Eliminate loading delays that cause user drop-off.
< 1 sec
P99 Latency
100%
Chain Coverage
02
Reduced Infrastructure Complexity
Replace managing multiple RPC nodes, custom indexers, and data pipelines with a single, unified GraphQL API. Free your team to focus on core product logic.
90%
Dev Time Saved
1 API
Unified Endpoint
03
Enhanced Market & Wallet Integrations
Power advanced features like cross-chain portfolio views, aggregated listings, and rarity-based discovery by accessing normalized metadata from all major marketplaces.
10+
Markets Indexed
0 Downtime
During Mints
04
Guaranteed Data Consistency
Ensure NFT traits, collection stats, and ownership records are always accurate and synchronized, backed by cryptographic verification and automatic reconciliation.
99.99%
Data Accuracy
24/7
Health Monitoring
05
Accelerated Time-to-Market
Go from concept to live integration in weeks, not months. Our pre-built connectors and managed infrastructure eliminate the need for in-house indexing development.
< 2 weeks
Integration Time
0
Indexer Maintenance
06
Scalable Foundation for Growth
Built to handle volume spikes from successful mints and trading frenzies. Automatically scales to support your product as it grows from hundreds to millions of users.
10M+
NFTs Indexed Daily
Elastic
Auto-Scaling
Infrastructure Decision Matrix
Build vs. Buy: Managing NFT Indexing Infrastructure
A technical and financial comparison of developing a custom cross-chain NFT indexer versus using Chainscore's managed service.
| Infrastructure Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Time to Initial Production | 6-12 months | 2-4 weeks |
Upfront Development Cost | $150K - $400K+ | $0 |
Ongoing Annual Maintenance | $80K - $200K (2-3 engineers) | $15K - $75K |
Security & Audit Overhead | High (Unaudited Risk) | Low (Pre-Audited, SOC 2 Compliant) |
Supported Chains (EVM) | Custom Integration per Chain | Ethereum, Polygon, Arbitrum, Base, Optimism, zkSync |
Data Freshness SLA | Variable (Team Dependent) | < 5 seconds |
Query API Uptime SLA | Self-Managed (No SLA) | 99.9% |
Schema Flexibility | Full Control, Full Responsibility | Customizable Schemas with Support |
Scalability Handling | Your Engineering Burden | Automatic, Handles 10K+ RPS |
Team Focus | Diverted to Infrastructure | 100% on Core Product Logic |
how-we-deliver
PROVEN FRAMEWORK
Our Delivery Methodology
We deliver production-ready cross-chain NFT metadata infrastructure through a structured, transparent process designed for technical founders and CTOs. Our methodology ensures security, scalability, and rapid integration.
01
Discovery & Architecture Design
We conduct a technical deep-dive to analyze your NFT collections, target chains, and performance requirements. We deliver a detailed architecture document outlining the indexing strategy, data models, and API specifications.
1-2 days
Workshop
Detailed Spec
Deliverable
02
Secure Indexer Deployment
Our engineers deploy custom indexers using The Graph, Subsquid, or Envio, configured for your specific NFT standards (ERC-721/1155). We implement robust error handling, rate limiting, and data validation from day one.
Multi-chain
Support
Real-time
Sync
03
API Gateway & Integration
We provision a dedicated, low-latency GraphQL/REST API endpoint with comprehensive documentation. We provide client SDKs and assist your team with integration, ensuring queries for traits, ownership, and history are performant.
< 100ms
P95 Latency
Full SDK
Included
04
Monitoring & SLA Enforcement
Your infrastructure is backed by 24/7 monitoring for data freshness, chain reorgs, and API health. We provide a dashboard and alerting to guarantee our 99.9% uptime SLA and sub-second query performance.
99.9%
Uptime SLA
24/7
Monitoring
security-reliability
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by experts for your Web3 application.
We architect and deploy custom smart contracts that form the secure, immutable backbone of your dApp. Our development process is built on Solana, EVM, and Move-based protocols using battle-tested patterns from OpenZeppelin and Anchor.
- Security-First Development: Every contract undergoes rigorous audits and formal verification before deployment.
- Gas Optimization: We write efficient code to minimize transaction costs and maximize user savings.
- Full Lifecycle Support: From initial design and testing to mainnet deployment and ongoing maintenance.
Deliver a secure, audited, and gas-optimized smart contract suite in as little as 2-4 weeks, accelerating your path to a live product.
Cross-Chain NFT Metadata Indexing
Frequently Asked Questions
Get clear answers on how we deliver scalable, reliable NFT data infrastructure for your platform.
A production-ready indexer for 2-3 primary chains typically deploys in 3-5 weeks. This includes architecture design, smart contract listener deployment, metadata normalization pipeline setup, and integration with your application layer. Complex requirements like real-time attribute filtering or support for 5+ chains may extend the timeline.
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