We architect and deploy custom Solidity/Rust smart contracts that form the immutable backbone of your application. Our development process is built on OpenZeppelin standards and includes comprehensive unit testing with Hardhat or Foundry.
LABS
Services
Cross-Chain Smart Contract Wallet Infrastructure
We design and deploy secure smart contract wallet infrastructure that enables your users to manage assets and execute transactions across multiple blockchains from a single, unified interface.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
- Full Lifecycle Support: From initial design and
ERC-20/ERC-721token creation to complex DeFi logic and mainnet deployment. - Security-First: Every contract undergoes rigorous internal audits and formal verification before we recommend third-party review.
- Gas Optimization: We write for efficiency, targeting up to 40% lower transaction costs through optimized logic and storage patterns.
Deliver a battle-tested, upgradeable smart contract system in as little as 3-4 weeks, giving you a secure foundation to build upon.
key-features-cards
ARCHITECTURE FOR SCALE
Core Infrastructure Capabilities
Our modular, battle-tested infrastructure provides the foundational building blocks for secure, scalable cross-chain wallets. We handle the complexity so you can focus on your product.
02
Secure Key Management
Enterprise-grade MPC (Multi-Party Computation) custody with distributed key sharding. Eliminates single points of failure and provides non-custodial security certified by SOC 2 Type II standards.
SOC 2
Compliance
0
Custodial Risk
04
Real-Time Transaction Monitoring
Proactive security and analytics dashboard. Detect anomalous activity, simulate transaction outcomes, and enforce policy-based rules before execution to protect user assets.
24/7
Monitoring
< 100 ms
Alert Latency
05
Gas Optimization Engine
Dynamic fee estimation and sponsorship orchestration. Automatically route transactions through the most cost-effective networks and bundlers, reducing user gas costs by up to 40%.
40%
Avg. Gas Savings
5
Bundler Partners
benefits
DELIVERABLES
Business Outcomes for Your Product
Our infrastructure delivers measurable results, from accelerated time-to-market to hardened security, designed to give your product a competitive edge.
01
Accelerated Time-to-Market
Deploy a production-ready, multi-chain wallet infrastructure in under 4 weeks. We provide the complete SDK, smart contracts, and backend services so your team can focus on core product features.
< 4 weeks
To Production
5+ chains
Simultaneous Support
02
Enterprise-Grade Security
Smart contracts are built with OpenZeppelin standards and undergo formal verification and third-party audits (e.g., CertiK, Halborn). We implement MPC-based key management with zero single points of failure.
100%
Audit Coverage
SOC 2
Compliance Ready
03
Seamless User Onboarding
Remove Web3 friction with social logins (Google, Apple) and embedded non-custodial wallets. Achieve sign-up conversion rates comparable to Web2 applications.
< 60 sec
First Transaction
90%+
Retention Rate
04
Unified Cross-Chain UX
Provide a single interface for users to manage assets and execute transactions across Ethereum, Polygon, Arbitrum, and Solana. Our abstraction layer handles chain-specific complexities.
1 SDK
For All Chains
< 2 sec
Cross-Chain Tx
05
Scalable Transaction Management
Handle high-volume DeFi and NFT operations with gas optimization, batched transactions, and fee sponsorship models. Our relayers ensure 99.9% uptime for meta-transactions.
99.9%
Relayer Uptime SLA
40%
Avg. Gas Savings
Strategic Analysis
Build vs. Buy: Cross-Chain Wallet Infrastructure
A detailed comparison of the time, cost, and risk involved in developing a cross-chain smart contract wallet infrastructure in-house versus leveraging Chainscore's enterprise-grade platform.
| Key Factor | Build In-House | Buy with Chainscore |
|---|---|---|
Time to Initial Deployment | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $500K+ | $50K - $150K |
Security Audit Requirement | High (Your responsibility) | Included (Pre-audited modules) |
Supported Chains on Day 1 | 1-2 (EVM only) | 10+ (EVM, Solana, Cosmos SDK) |
Ongoing Maintenance & Updates | 2-3 FTEs ($200K+/year) | Optional SLA (from $30K/year) |
Multi-Sig & Policy Engine | Custom build required | Pre-built, customizable |
Gas Abstraction & Sponsorship | Complex integration | Native feature |
Recovery & Social Login | High-risk custom logic | SOC 2 compliant system |
Total Year 1 Cost (Est.) | $450K - $700K+ | $80K - $180K |
Infrastructure Uptime SLA | You build & maintain | 99.9% Guaranteed |
how-we-deliver
METHODOLOGY
Our Development & Integration Process
A structured, security-first approach to deliver production-ready cross-chain wallet infrastructure. We focus on rapid integration, audited code, and measurable outcomes.
01
Discovery & Architecture Design
We analyze your use case to design a modular wallet architecture. Deliverables include a technical specification, gas cost analysis, and a detailed integration roadmap for your team.
1-2 weeks
To Specification
Modular
Design Pattern
02
Smart Contract Development
Our engineers write, test, and optimize core wallet logic (Account Abstraction, multi-signature, recovery) in Solidity/Vyper. All code follows OpenZeppelin standards and is gas-optimized.
Solidity 0.8+
Language
OpenZeppelin
Security Base
03
Cross-Chain Integration
We implement secure bridging and messaging layers using protocols like Axelar, LayerZero, or Wormhole. This enables seamless asset and data flow across EVM and non-EVM chains.
Axelar / LZ
Protocols
EVM & Non-EVM
Chain Support
04
Security Audit & Testing
Every contract undergoes rigorous internal review and is submitted to a third-party auditor (e.g., Spearbit, Code4rena). We provide a final audit report and remediation before mainnet deployment.
Third-Party
Audit
100% Test Coverage
Internal
05
Deployment & Monitoring
We handle the mainnet deployment with you, configure real-time monitoring (Tenderly, Forta), and establish incident response protocols. Includes 24/7 alerting for anomalous transactions.
Tenderly / Forta
Monitoring
24/7
Alerting
06
Documentation & Handoff
We deliver comprehensive technical documentation, integration guides, and SDKs. Our team provides knowledge transfer sessions to ensure your engineers can maintain and extend the system.
Full API Docs
Deliverable
Live Support
Handoff
security-compliance
CORE SERVICES
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
We architect and deploy custom smart contracts on EVM-compatible chains like Ethereum, Polygon, and Arbitrum. Our development process is built for security and speed, delivering audit-ready code in 2-4 weeks for a typical MVP.
- Security-First Architecture: Code built on
Solidity 0.8+with OpenZeppelin libraries and industry-standard patterns. - Gas Optimization: Contracts are meticulously optimized to reduce user transaction fees by 30-50%.
- Full Testing Suite: Comprehensive unit and integration tests with >95% coverage before delivery.
- Deployment & Verification: We handle mainnet deployment, source code verification, and initial monitoring setup.
We don't just write code; we deliver the foundational logic for your token, DeFi protocol, or NFT project with enterprise-grade reliability.
Cross-Chain Wallet Infrastructure
Frequently Asked Questions
Get clear answers on our development process, security, and support for your multi-chain smart contract wallet project.
A standard cross-chain smart contract wallet deployment takes 4-8 weeks from kickoff to mainnet launch. This includes architecture design, core wallet development (ERC-4337/ERC-7579), integration with 2-3 target blockchains (e.g., Ethereum, Polygon, Arbitrum), and a full security audit. More complex features like social recovery or custom gas sponsorship can extend the timeline, which we scope and agree upon upfront.
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