We architect and deploy production-grade blockchain systems tailored to your business logic. Our full-cycle development delivers secure, audited smart contracts on EVM-compatible chains, integrated frontends, and scalable backend infrastructure.
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Cross-Chain Portfolio API Gateway
A developer-first service providing unified, real-time APIs to query and manage user portfolio data across Ethereum, Solana, and other major blockchains. Build custom dashboards and automated workflows without managing RPC nodes.
Chainscore © 2026
overview
FULL-STACK INFRASTRUCTURE
Custom Blockchain Development
End-to-end blockchain development for FinTechs and Web3 startups, from smart contracts to full-stack dApps.
Go from concept to mainnet in as little as 4-8 weeks with our structured sprint process.
- Smart Contract Development: Custom
Solidity 0.8+/Rustcontracts withOpenZeppelinstandards and formal verification. - Full-Stack dApps: Complete applications with
React/Next.jsfrontends andNode.js/The Graphbackends. - Protocol Design: Tokenomics, governance models, and incentive mechanisms for
DeFiandGameFi. - Security First: Multi-signature deployments, comprehensive audits, and bug bounty program setup.
key-features-cards
BUILT FOR SCALE
Core Technical Capabilities
Our API gateway is engineered on a foundation of proven infrastructure, delivering the reliability, speed, and security required for production-grade financial applications.
benefits
DELIVERABLES
Business Outcomes for Your Team
Our Cross-Chain Portfolio API Gateway delivers concrete, measurable results for your engineering and product teams, accelerating development and reducing operational overhead.
01
Launch in Days, Not Months
Integrate a unified view of user assets across 50+ chains in under 2 weeks. We handle the infrastructure complexity, so your team can focus on core product features.
< 2 weeks
Integration Time
50+
Supported Chains
02
Eliminate Data Infrastructure Costs
Replace the overhead of managing multi-chain RPC nodes, indexers, and data pipelines. Our unified API reduces your infrastructure spend and engineering maintenance by over 70%.
> 70%
Cost Reduction
0
Nodes to Manage
03
Enterprise-Grade Reliability
Build on infrastructure with a 99.9% uptime SLA, backed by automatic failover and multi-region deployment. Ensure your application's portfolio data is always available.
99.9%
Uptime SLA
< 100ms
P95 Latency
04
Real-Time, Consistent Data
Access normalized, real-time balances, NFTs, and token prices with sub-second updates. Our data consistency layer eliminates reconciliation errors across chains.
< 1 sec
Data Freshness
100%
Data Normalization
05
Scale Without Performance Degradation
Our horizontally scalable architecture handles millions of concurrent requests. We provide dedicated throughput guarantees to support your user growth.
1M+
RPS Capacity
24/7
Performance Monitoring
Compare Integration Tiers
Technical Specifications & Coverage
Select the right plan for your application's scale, from MVP to enterprise-grade.
| Feature | Starter | Professional | Enterprise |
|---|---|---|---|
Supported Chains | Ethereum, Polygon | Ethereum, Polygon, Arbitrum, Base, Optimism | All EVM L1/L2s + Solana, Aptos, Sui |
API Throughput (RPM) | 1,000 | 10,000 | Unlimited |
Real-time Portfolio Updates | |||
Historical Data (Depth) | 30 days | 1 year | Full history |
Custom Token & NFT Support | Manual whitelist | Dynamic detection | Dynamic detection + custom contracts |
Multi-Wallet Aggregation | Up to 10 | Up to 100 | Unlimited |
Uptime SLA | 99.5% | 99.9% | 99.99% |
Dedicated Support | Priority Slack | 24/7 Dedicated Engineer | |
Custom Data Enrichment | |||
Starting Price (Monthly) | $499 | $2,499 | Custom |
use-cases
USE CASES
Tailored for Specific Applications
Our Cross-Chain Portfolio API Gateway is engineered to solve specific, high-impact problems for Web3 businesses. Each integration is optimized for performance, security, and developer experience.
how-we-deliver
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
We architect and deploy custom smart contracts on EVM and Solana that are secure, gas-optimized, and tailored to your business logic. Every contract undergoes a rigorous security audit and is built with OpenZeppelin standards for maximum reliability.
From tokenomics to complex DeFi logic, we deliver contracts that execute flawlessly and scale with your user base.
- Full Lifecycle Support: Design, development, auditing, deployment, and ongoing maintenance.
- Protocol Expertise:
ERC-20,ERC-721,ERC-1155, custom AMMs, lending/borrowing pools, and governance systems. - Guaranteed Security: Multi-stage review process with formal verification options to eliminate vulnerabilities.
Cross-Chain Portfolio API
Frequently Asked Questions
Get clear answers on implementation, security, and support for our unified portfolio data gateway.
Typical integration and deployment takes 1-2 weeks for standard configurations. We provide a dedicated integration engineer and a sandbox environment on day one. For complex multi-chain deployments with custom logic, timelines extend to 3-4 weeks. We follow a structured 4-phase process: Discovery & Scoping (2-3 days), Environment Setup (1-2 days), Integration & Testing (1-2 weeks), and Production Launch.
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