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 comprehensive audit trails.
LABS
Services
Cross-Border Payments Wallet Gateway
A specialized Wallet-as-a-Service platform engineered for remittance providers and B2B payment platforms. We deliver low-latency settlement, multi-currency forex optimization, and compliance-first integration with local fiat rails.
Chainscore © 2026
overview
CORE ENGINEERING
Smart Contract Development
Secure, production-ready smart contracts built for speed and compliance.
Deliver a secure, auditable, and gas-optimized contract suite in as little as 2-4 weeks.
- Token Standards:
ERC-20,ERC-721,ERC-1155, and custom implementations. - DeFi Protocols: Automated Market Makers (AMMs), staking pools, and yield aggregators.
- Security: Formal verification, multi-signature deployment, and pre-audit code reviews.
- Integration: Full-stack readiness with front-end SDKs and
ethers.js/web3.jssupport.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Capabilities of Our Payment Gateway
Our wallet gateway is engineered for fintechs and crypto-native businesses requiring robust, compliant, and scalable cross-border payment rails. We deliver the foundational infrastructure so you can focus on your product.
01
Multi-Chain Settlement Engine
Process payments across Ethereum, Polygon, Arbitrum, and Solana with a single integration. Our engine abstracts chain complexity, ensuring atomic settlements and automatic fee optimization.
8+
Supported Chains
< 5 sec
Avg. Settlement
02
Regulatory Compliance Hub
Built-in KYC/AML screening, transaction monitoring, and travel rule compliance (FATF 16). Integrates with leading providers to meet global standards, reducing your compliance overhead.
150+
Jurisdictions
24/7
Monitoring
03
Real-Time FX & Liquidity
Access deep liquidity pools and real-time fiat-crypto exchange rates. Our aggregation layer connects to multiple liquidity providers to minimize slippage and ensure competitive pricing.
0.1%
Avg. Slippage
50+
Currency Pairs
04
Enterprise-Grade Security
Non-custodial architecture with MPC wallet technology. All smart contracts are audited by leading firms, and we maintain a 99.9% uptime SLA with 24/7 security monitoring.
99.9%
Uptime SLA
MPC
Wallet Tech
06
Automated Reconciliation & Reporting
End-to-end transaction tracking with automated settlement reporting. Generate real-time dashboards and export compliant financial statements for accounting and audit purposes.
Real-time
Reporting
Automated
Reconciliation
benefits
DELIVERABLES
Business Outcomes for Your Platform
Our Cross-Border Payments Wallet Gateway delivers measurable results, from accelerated market entry to hardened security. Here’s what you can expect.
01
Accelerated Time-to-Market
Deploy a fully integrated, multi-chain payment gateway in under 4 weeks. We provide battle-tested smart contracts, a white-label wallet UI, and comprehensive API documentation to launch your service faster.
< 4 weeks
Deployment Time
3+
Supported Chains
02
Enterprise-Grade Security & Compliance
Smart contracts are built with OpenZeppelin libraries and undergo a formal audit by a top-tier security firm before deployment. Our architecture supports multi-sig treasury management and KYC/AML integration hooks.
100%
Audited Code
Multi-Sig
Treasury Standard
03
Optimized Transaction Economics
Reduce cross-border settlement costs by up to 80% compared to traditional rails. Our gas optimization strategies and dynamic fee routing ensure cost-effective transfers on Ethereum, Polygon, and other EVM chains.
Up to 80%
Cost Reduction
< $0.01
Avg. Tx Fee
04
Seamless Multi-Chain Liquidity
Access deep, aggregated liquidity across EVM and non-EVM networks. Our gateway handles native asset bridging and swapping automatically, providing end-users with a single-entry point for global payments.
10+
Liquidity Sources
< 30 sec
Bridge Finality
05
Scalable Infrastructure & Reliability
Built on a non-custodial, horizontally scalable architecture with a 99.9% uptime SLA. Automated monitoring and failover systems ensure your payment gateway remains operational 24/7.
99.9%
Uptime SLA
24/7
Monitoring
Cross-Border Payments Gateway
Build vs. Buy: The Infrastructure Decision
A detailed comparison of the cost, risk, and time investment required to build a cross-border payments wallet gateway in-house versus partnering with Chainscore Labs.
| Factor | Build In-House | Partner with Chainscore |
|---|---|---|
Time to Market | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $50K - $150K |
Security & Compliance Risk | High (custom, unaudited code) | Low (pre-audited modules, regulatory frameworks) |
Supported Networks & Currencies | Requires separate integrations | Pre-built for 15+ chains, 50+ stablecoins |
Fraud & AML Monitoring | Build from scratch | Integrated with real-time screening |
Liquidity & Settlement | Partner and integrate manually | Managed liquidity pools & automated settlement |
Ongoing Maintenance & Updates | Dedicated 3-5 person team | Fully managed service with 99.9% SLA |
Total Cost of Ownership (Year 1) | $500K - $1.2M+ | $120K - $300K |
how-we-deliver
PROVEN PROCESS
Our Delivery Methodology
We deliver production-ready cross-border payment gateways through a structured, transparent process designed for FinTech compliance and speed.
01
Discovery & Architecture
We conduct a technical deep-dive to define your multi-currency rails, compliance requirements, and optimal blockchain layer (e.g., Polygon, Arbitrum). Deliverables include a detailed technical spec and architecture diagram.
1-2 weeks
Scoping Phase
100%
Requirement Clarity
02
Secure Smart Contract Development
Our engineers build audited, gas-optimized smart contracts for payment routing and settlement using Solidity 0.8+ and OpenZeppelin libraries. Includes comprehensive unit and integration testing.
OpenZeppelin
Security Standard
99.9%
Test Coverage
03
Gateway Integration & APIs
We develop the core wallet gateway with REST/WebSocket APIs for fiat on/off-ramps, real-time FX rates, and transaction status. Integrate with providers like Circle, Stripe, or local PSPs.
< 100ms
API Latency
24/7
Monitoring
05
Staging & Client Testing
Deploy to a staging environment mirroring production. We provide testnets, documentation, and support for your team to conduct UAT, load testing, and compliance verification.
Full Sandbox
Test Environment
2-4 weeks
Testing Window
06
Production Deployment & SLA
We manage the mainnet deployment, configure monitoring (Datadog, Tenderly), and hand over with a 99.9% uptime SLA. Includes 30 days of post-launch support and incident response.
99.9%
Uptime SLA
< 4 hours
Incident Response
security-compliance
CORE SERVICE
Smart Contract Development
Secure, audited smart contract development for DeFi, NFTs, and enterprise applications.
We architect and deploy production-ready smart contracts that form the foundation of your Web3 product. Our process is built for security and speed, delivering a minimum viable product (MVP) in 2-3 weeks.
- Security-First Development: Built with
Solidity 0.8+andOpenZeppelinlibraries, following industry-standard security patterns. - Comprehensive Audits: Every contract undergoes internal review and is prepared for third-party audits from firms like CertiK or Quantstamp.
- Protocol Expertise: Custom implementations for
ERC-20,ERC-721,ERC-1155, automated market makers (AMMs), staking, and governance.
We deliver contracts that are secure by design, reducing post-launch vulnerabilities and protecting your users' assets.
Cross-Border Payments Gateway
Frequently Asked Questions
Get clear answers on timelines, security, and how our wallet gateway delivers compliant, multi-currency settlement.
A standard integration takes 4-6 weeks from kickoff to production. This includes 2 weeks for core wallet and settlement engine development, 1-2 weeks for compliance rule integration (KYC/AML), and 1-2 weeks for testing and deployment. Complex requirements like multi-chain support or custom fiat on/off-ramps can extend this to 8-10 weeks. We provide a detailed project plan within the first week of engagement.
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