We architect and deploy custom smart contracts that form the backbone of your Web3 application. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and rigorous internal audits to mitigate risk before deployment.
LABS
Services
Cross-Ecosystem Sub-Account Integration Consulting
Strategic advisory and architecture design service to integrate legacy banking, ERP, or corporate systems with on-chain sub-account infrastructure for seamless financial operations.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built on a foundation of audited code and battle-tested patterns.
From token economies to complex DeFi logic, we translate your business requirements into immutable, gas-optimized code.
- Standard & Custom Tokens:
ERC-20,ERC-721,ERC-1155with custom minting, vesting, and governance logic. - DeFi & dApp Logic: Automated market makers (AMMs), staking pools, yield aggregators, and NFT marketplaces.
- Security & Quality: Multi-stage review process, formal verification for critical functions, and post-deployment monitoring.
key-features-cards
TANGIBLE OUTCOMES
Our Integration Consulting Deliverables
We deliver concrete artifacts and strategic frameworks, not just advice. Each engagement concludes with battle-tested, production-ready components and clear operational guidance to ensure your sub-account system launches successfully and scales.
01
Architecture Blueprint & Integration Roadmap
A comprehensive technical design document detailing the sub-account model, cross-chain messaging flow, and security architecture. Includes a phased implementation roadmap with clear milestones and resource allocation.
2-4 weeks
Delivery Time
100%
Client Sign-off
02
Smart Contract Suite & Security Audit
Production-ready, modular smart contracts for account abstraction, multi-signature logic, and gas management. All code is pre-audited using industry-standard tools and follows OpenZeppelin security patterns.
Solidity 0.8+
Code Standard
Slither, MythX
Audit Tools
03
Cross-Chain Relayer Configuration
Fully configured and tested relayer infrastructure (e.g., Axelar GMP, LayerZero, Wormhole) for secure message passing between EVM and non-EVM ecosystems. Includes failover procedures and monitoring setup.
< 3 sec
Avg. Finality
99.5%
Reliability SLA
04
Wallet SDK & Developer Toolkit
A custom TypeScript/JavaScript SDK that abstracts cross-chain complexity. Provides simple APIs for sub-account creation, transaction batching, and balance polling, accelerating your frontend development.
TypeScript
Primary Lang
Full Docs
Included
05
Operational Runbook & Incident Response
A detailed manual for your DevOps and support teams covering deployment, key management, monitoring alerts (via Datadog/Grafana), and step-by-step incident response protocols for network outages.
24/7
Coverage Plan
< 15 min
Response Time SLA
06
Go-Live Support & Performance Review
Hands-on engineering support during your mainnet launch, including load testing and real-time monitoring. Concludes with a post-launch performance review and optimization recommendations.
2 weeks
Support Window
TPS & Latency
Metrics Report
benefits
MEASURABLE RESULTS
Business Outcomes for FinTechs & NeoBanks
Our sub-account architecture consulting delivers concrete infrastructure improvements that directly impact your bottom line and user experience.
01
Faster Time-to-Market
Deploy a production-ready, multi-chain sub-account system in under 4 weeks, not months. We provide battle-tested templates for EVM, Solana, and Cosmos ecosystems.
< 4 weeks
Deployment Time
3+
Chain Templates
02
Reduced Operational Risk
Implement a secure, non-custodial architecture with granular permissioning. Our designs are built on OpenZeppelin and SEAL 2024 security patterns, isolating user funds from platform risk.
Non-Custodial
Architecture
Granular
Permissioning
03
Lower Transaction Costs
Optimize gas and fee structures across chains with batch processing and account abstraction patterns. Achieve up to 40% reduction in user onboarding and interaction costs.
Up to 40%
Cost Reduction
Batch Processing
Optimization
04
Enhanced User Experience
Enable seamless, single-wallet interactions across 10+ blockchains. Abstract away chain complexity, allowing users to manage assets and DeFi positions from one unified interface.
10+
Chains Supported
Single Wallet
User Flow
05
Scalable Compliance Framework
Build with integrated compliance tooling for address screening (TRM Labs, Chainalysis) and transaction monitoring. Design sub-accounts to streamline audit trails for regulators.
Integrated
KYT Tooling
Streamlined
Audit Trails
06
Future-Proof Architecture
Our modular design allows easy integration of new L2s and appchains via a standardized adapter layer. Avoid vendor lock-in and adapt to ecosystem shifts without rewrites.
Modular
Design
Adapter Layer
Integration
The Strategic Decision for Multi-Chain Sub-Accounts
Build vs. Buy vs. Chainscore Advisory
A detailed comparison of the strategic paths for implementing cross-ecosystem sub-account infrastructure, analyzing the trade-offs between in-house development, third-party SDKs, and our expert-led advisory service.
| Key Factor | Build In-House | Buy Generic SDK | Chainscore Advisory |
|---|---|---|---|
Time to Production | 6-12 months | 2-4 months | 4-8 weeks |
Initial Architecture & Design | Your team | Vendor's template | Custom, battle-tested blueprint |
Multi-Chain Coverage | Custom per chain | Limited (2-3 chains) | Ethereum, Polygon, Arbitrum, Base, Optimism, zkSync |
Security & Audit Burden | High (your responsibility) | Medium (shared risk) | Low (our audited patterns + your review) |
Gas Optimization Expertise | Trial and error | Basic | Advanced (up to 40% savings) |
Ongoing Protocol Upgrades | Your team's R&D | Vendor's timeline | Proactive advisory & migration plans |
Total Year 1 Cost | $250K - $600K+ | $50K - $120K + % fees | $80K - $200K (fixed scope) |
Team Bandwidth Drain | 2-3 senior engineers full-time | 1 engineer part-time | Your PM + our dedicated engineers |
Strategic Flexibility | Full control, high lock-in | Vendor lock-in, limited customization | Own your IP, adapt to market shifts |
Outcome Guarantee | None | SLA for uptime only | On-time delivery & performance KPIs |
how-we-deliver
STRUCTURED IMPLEMENTATION
Our 4-Phase Advisory Process
A proven methodology to design, architect, and launch secure cross-ecosystem sub-account systems. We de-risk integration and accelerate your time-to-market.
Technical & Commercial Considerations
Cross-Ecosystem Integration FAQs
Get clear answers on timelines, security, and process for integrating sub-accounts across EVM, Solana, Cosmos, and other ecosystems.
Our standard deployment timeline is 4-8 weeks, from initial design to mainnet launch. For a single-chain sub-account system, delivery can be as fast as 2-3 weeks. Multi-chain integrations (e.g., EVM + Solana + Cosmos SDK) typically require 6-8 weeks. This includes architecture design, smart contract development, off-chain relayers, security audits, and deployment. We provide a detailed project plan with weekly milestones after the initial scoping call.
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