We architect and deploy custom smart contracts that form the immutable backbone of your application. Our development process is built on security-first principles, utilizing OpenZeppelin libraries, comprehensive unit testing, and third-party audits to mitigate risk.
LABS
Services
Cross-Chain Payment Wallet Engineering
We build smart contract wallets with native cross-chain payment routing, enabling direct swaps and transfers across heterogeneous networks without centralized bridges. Deploy in 4-8 weeks.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
Deliver a battle-tested, gas-optimized contract suite in 2-4 weeks, not months.
- Protocols & Standards:
ERC-20,ERC-721,ERC-1155,ERC-4626, custom DeFi logic. - Security Rigor: Formal verification,
Slither/MythXanalysis, and audit preparation. - Full Lifecycle: From architecture and development to deployment, verification, and monitoring on
Ethereum,Polygon,Arbitrum, and other EVM chains.
key-features-cards
ENGINEERED FOR SCALE
Core Wallet Infrastructure Capabilities
We build production-grade, multi-chain wallets with enterprise security and developer-first tooling, enabling FinTechs to launch payment products in weeks, not months.
01
Multi-Chain Account Abstraction
Deploy ERC-4337 smart accounts with native support for EVM, Solana, and Cosmos chains. Enable gasless transactions, batch operations, and social recovery for a seamless user onboarding experience.
15+
Chains Supported
< 2 sec
Tx Finality
02
Secure Key Management
Implement MPC (Multi-Party Computation) and HSM-backed custody solutions. Private keys are never stored in a single location, eliminating single points of failure and meeting institutional security requirements.
SOC 2 Type II
Compliance
Zero
Key Leaks
03
Cross-Chain Payment Engine
Integrate automated cross-chain swaps and bridges (e.g., Axelar, Wormhole) directly into the wallet flow. Settle payments across any supported chain with optimal routing and real-time fee estimation.
90%
Cost Reduction
< 60 sec
Cross-Chain Swap
05
Compliance & Regulatory Toolkit
Built-in tools for address screening (TRM Labs, Chainalysis), transaction monitoring, and audit trails. Generate compliance reports automatically to simplify regulatory requirements for financial institutions.
100k+
Screened Wallets
Auto
Report Generation
benefits
ENGINEERED FOR SCALE
Business Outcomes for Your Product
Our cross-chain payment wallet engineering delivers measurable results, reducing development costs and accelerating your time-to-market with production-ready infrastructure.
01
Faster Time-to-Market
Launch your cross-chain wallet in 6-8 weeks with our modular, battle-tested architecture. We provide pre-audited smart contracts and a fully integrated backend, eliminating months of R&D.
6-8 weeks
Launch Time
90%
Code Reuse
02
Reduced Operational Overhead
We manage the complex infrastructure—RPC nodes, indexers, gas management, and multi-chain state synchronization—so your team can focus on core product features and user growth.
99.9%
Infra Uptime SLA
70%
Dev Time Saved
03
Enhanced Security & Compliance
Deploy with confidence. Our wallet architecture incorporates MPC/TSS key management, undergoes regular audits (e.g., by Halborn), and is built to comply with evolving regulatory standards.
Zero
Critical Audit Findings
SOC 2
Compliance Ready
04
Superior User Experience
Deliver seamless cross-chain swaps and payments with sub-2-second finality and near-zero failed transactions. Our gas abstraction and intelligent routing eliminate user friction.
< 2 sec
Swap Finality
> 99%
Tx Success Rate
05
Future-Proof Architecture
Built to integrate new chains and protocols in days, not months. Our modular design supports EVM, Solana, Cosmos, and Bitcoin ecosystems, ensuring your wallet never becomes obsolete.
15+
Supported Chains
3 days
New Chain Integration
06
Proven at Scale
Our infrastructure processes over $1.5B in cross-chain volume annually. We engineer for enterprise-grade load, ensuring your wallet performs reliably during market volatility and user spikes.
$1.5B+
Annual Volume
10k+
TPS Capacity
Strategic Comparison
Build vs. Buy: Cross-Chain Payment Wallet Engineering
A detailed breakdown of the costs, risks, and time investment required to build a secure, multi-chain wallet in-house versus partnering with Chainscore Labs.
| Factor | Build In-House | Partner with Chainscore |
|---|---|---|
Time to Market (MVP) | 6-12 months | 4-8 weeks |
Initial Development Cost | $200K - $500K+ | $50K - $150K |
Security & Audit Overhead | High (unaudited, custom code) | Low (pre-audited modules, battle-tested) |
Supported Chains (Initial) | 1-2 chains (EVM) | 5+ chains (EVM, Solana, Cosmos SDK) |
Ongoing Maintenance & Upgrades | Full internal team required | Optional SLA with 24/7 monitoring |
Cross-Chain Messaging (e.g., CCIP, Wormhole) | Custom integration & risk | Pre-integrated, production-ready |
Key Management (MPC/AA) Expertise | Requires specialized hire | Included as core competency |
Total Cost of Ownership (Year 1) | $300K - $750K+ | $80K - $200K |
how-we-deliver
ENGINEERING EXCELLENCE
Our Development Process
A proven, security-first methodology for delivering enterprise-grade cross-chain wallets. We focus on rapid, reliable deployment with measurable outcomes.
01
Architecture & Discovery
We analyze your specific token flows, target chains (EVM, Solana, Cosmos), and user requirements to design a secure, scalable wallet architecture. This phase establishes clear technical specifications and a fixed-scope plan.
1-2 weeks
To Finalize Specs
5+ Chains
Architecture Review
02
Core Wallet & Smart Contract Development
Development of secure, non-custodial wallet cores using industry standards (EIP-4337 for Account Abstraction, MPC where applicable) and audited smart contracts for bridging and swapping logic.
OpenZeppelin
Security Base
EIP-4337
Standard Compliant
03
Cross-Chain Integration
Seamless integration with leading protocols (Wormhole, Axelar, LayerZero) and DEX aggregators (1inch, 0x). We implement robust fee management and slippage controls for optimal transaction routing.
< 1 sec
Quote Refresh
10+ Bridges
Supported
04
Security Audit & Penetration Testing
Comprehensive third-party smart contract audit by firms like CertiK or Quantstamp, supplemented by our internal penetration testing on the full application stack before mainnet deployment.
Critical: 0
Audit Target
100%
Test Coverage
05
Staging Deployment & Client Testing
Full deployment to a staging environment mirroring production. We provide detailed test suites and support your team through UAT, ensuring the wallet meets all functional and security requirements.
2-3 days
Deployment Time
Full Sandbox
Environment
06
Production Launch & Monitoring
Managed mainnet deployment with 24/7 monitoring for transaction success rates, bridge health, and anomaly detection. We provide detailed analytics dashboards and ongoing support SLAs.
99.9%
Uptime SLA
< 5 min
Incident Response
tech-stack
ENGINEERED FOR INTEROPERABILITY
Protocols & Technologies We Integrate
We build your cross-chain payment wallet on proven, secure infrastructure. Our deep integration expertise ensures seamless asset movement and future-proof flexibility.
Cross-Chain Wallet Engineering
Frequently Asked Questions
Common questions from CTOs and founders about building secure, scalable cross-chain payment solutions.
A production-ready cross-chain wallet with core features (multi-chain support, token swaps, fiat on/off-ramps) typically takes 4-8 weeks from kickoff to mainnet deployment. Complex integrations (custom bridging logic, institutional custody) can extend to 12+ weeks. We provide a detailed sprint-by-sprint roadmap during discovery.
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