We architect and deploy custom smart contracts that form the secure, immutable backbone of your project. Our development process is built on audited code patterns, gas optimization, and comprehensive testing to ensure reliability from day one.
LABS
Services
Mobile Cross-Border Transaction App
Enterprise-grade mobile applications for compliant, fast, and fully traceable cross-border transactions. We integrate fiat and crypto rails, FX services, and automated regulatory reporting.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts for your protocol or application.
- Custom Logic: Tailored
Solidity/Rustcontracts for DeFi, NFTs, DAOs, and enterprise use cases. - Security-First: Development follows OpenZeppelin standards and includes pre-audit reviews.
- Full Lifecycle: From architecture and development to deployment, verification, and maintenance on chains like Ethereum, Polygon, Solana, and L2s.
- Guaranteed Outcomes: Deliver a production-ready MVP in 2-4 weeks with clear documentation and upgrade paths.
key-features-cards
ENGINEERED FOR SCALE
Core Features of Our Cross-Border Payment Apps
We build mobile-first payment applications that combine the speed of traditional finance with the transparency and low cost of blockchain. Our solutions are designed for fintechs and crypto-native businesses to launch and scale globally.
01
Multi-Chain Settlement Engine
Direct settlement on Ethereum, Polygon, and Solana to minimize fees and latency. Our engine abstracts blockchain complexity, providing a unified API for fiat-to-crypto and cross-chain transactions.
< 5 sec
Avg. Settlement
3+
Supported Chains
02
Regulatory Compliance by Design
Built-in KYC/AML flows, transaction monitoring, and geo-fencing controls. Our architecture integrates with leading compliance providers to ensure adherence to global regulations like Travel Rule.
150+
Jurisdictions
SOC 2 Type II
Certified
03
Real-Time FX & Liquidity
Aggregated liquidity from multiple on/off-ramps and DEXs to offer optimal exchange rates. Dynamic routing ensures users get the best price for 50+ currency pairs with minimal slippage.
50+
Currency Pairs
< 0.5%
Avg. Spread
04
Enterprise-Grade Security
Non-custodial architecture with MPC wallets, multi-sig transaction approval, and real-time threat detection. All smart contracts undergo formal verification and third-party audits.
Zero
Custody Risk
99.9%
Uptime SLA
05
White-Label Mobile SDK
Fully customizable iOS and Android SDKs to embed cross-border payments into your existing app. Includes pre-built UI components, biometric auth, and push notification handlers.
< 2 weeks
Integration
100+
API Endpoints
06
Unified Analytics Dashboard
Real-time dashboard for monitoring transaction volumes, user activity, fee revenue, and compliance status. Exportable reports and webhook alerts for settlement confirmations.
Real-time
Data Sync
24/7
Support
benefits
DELIVERABLES & METRICS
Business Outcomes You Can Expect
We architect and deliver production-ready mobile cross-border payment applications with measurable results. Our focus is on security, speed, and seamless integration.
01
Secure Multi-Chain Wallet Integration
Production-ready, non-custodial wallet SDKs for iOS/Android supporting EVM, Solana, and Cosmos chains. Includes secure key management, transaction signing, and a seamless user onboarding flow.
SOC 2 Type II
Compliance
OpenZeppelin
Audit Standard
02
Sub-Second Cross-Chain Settlement
Integration with leading cross-chain bridges (LayerZero, Axelar, Wormhole) and DEX aggregators (1inch, 0x) to enable fast, low-cost asset swaps and transfers across 15+ blockchains.
< 2 sec
Avg. Swap Time
15+
Supported Chains
03
Compliant Fiat On/Off Ramps
White-label integration with regulated payment partners for seamless bank transfers, card payments, and localized payment methods (SEPA, UPI, Pix) in 50+ countries.
50+
Countries
< 1%
Avg. Fee
04
Enterprise-Grade Infrastructure
Deployment on scalable, managed node infrastructure (Alchemy, QuickNode) with 24/7 monitoring, automatic failover, and dedicated support to ensure application reliability.
99.9%
Uptime SLA
< 50 ms
Node Latency
05
Rapid Time-to-Market
Leverage our battle-tested components and agile development process to launch your MVP in weeks, not months, with a clear path for scaling user base and transaction volume.
4-6 weeks
MVP Launch
10,000+
TPS Capacity
06
Ongoing Protocol Support
Continuous updates for new token standards, chain upgrades, and regulatory changes. We provide 24/7 technical support and proactive security monitoring post-launch.
24/7
Support
4-hr
Response SLA
Structured Roadmap for a Production-Ready App
Phased Development Tiers
A modular, milestone-driven approach to building your cross-border payment application. Start with a secure MVP and scale with advanced features and support.
| Feature / Deliverable | Foundation Tier | Growth Tier | Scale Tier |
|---|---|---|---|
Multi-Chain Wallet Integration | |||
Fiat On/Off-Ramp (Stripe, MoonPay) | |||
Cross-Chain Swap Aggregation (LI.FI) | |||
Custom Smart Contract Suite (Audited) | Basic Transfer | Advanced Routing & Staking | Full DeFi Integration |
Transaction Monitoring & Alerting | Basic Logs | Real-Time Dashboard | AI-Powered Anomaly Detection |
Compliance & KYC Integration | Basic Verification | Automated AML Screening | Custom Rule Engine |
Technical Support & SLA | Email (Business Hours) | Priority Slack (12h) | 24/7 Dedicated Engineer |
Deployment & Infrastructure | Testnet & 1 Mainnet | 2 Mainnets + Staging | Multi-Region, Auto-Scaling |
Estimated Timeline | 6-8 Weeks | 10-12 Weeks | 16+ Weeks |
Estimated Investment | $50K - $80K | $120K - $200K | Custom Quote |
how-we-deliver
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your protocol.
We architect and deploy custom smart contracts that form the foundation of your application. Our development process is built for security and speed, delivering a production-ready MVP in 2-3 weeks.
- Security-First Architecture: Built on
Solidity 0.8+withOpenZeppelinlibraries and comprehensive unit testing. - Protocol Expertise:
ERC-20,ERC-721,ERC-1155,ERC-4626, custom staking, and governance modules. - Full Audit Support: Code is structured for seamless integration with leading audit firms like CertiK and Quantstamp.
- Gas Optimization: Every contract is optimized for minimum deployment and execution costs.
We deliver battle-tested contracts that handle real value, ensuring your core logic is secure, efficient, and upgradeable from day one.
tech-stack
BUILT FOR GLOBAL SCALE
Technology & Protocol Stack
We engineer your cross-border payment app on battle-tested protocols and infrastructure, ensuring compliance, speed, and reliability from day one.
01
Layer-2 Scaling & Settlement
Deploy on Arbitrum or Polygon zkEVM for sub-second transaction finality and fees under $0.01. We handle the full integration, from bridging to smart contract deployment.
< 1 sec
Finality
< $0.01
Avg. Fee
02
Compliant Stablecoin Integration
Integrate regulated, fiat-backed stablecoins like USDC and EURC for compliant settlement. Our architecture supports direct mint/burn and real-time reserve attestation.
24/7
Settlement
SOC 2
Compliance
03
Cross-Chain Messaging
Secure asset and message transfer between chains using Axelar or LayerZero. We implement canonical bridging with multi-signature security for fund safety.
5+
Chains
7/24
Monitoring
04
Enterprise-Grade Node Infrastructure
Rely on our dedicated, geo-redundant RPC nodes with 99.9% uptime SLA. Includes real-time transaction indexing, mempool monitoring, and failover systems.
99.9%
Uptime SLA
< 100ms
Latency
05
Smart Contract Security
Custom payment routing and escrow contracts built with Solidity 0.8+ and OpenZeppelin. Every contract undergoes formal verification and third-party audit before mainnet deployment.
100%
Coverage
Tier-1
Audits
06
Fiat On/Off-Ramp Gateways
Seamless integration with licensed providers like Stripe and MoonPay for global card and bank transfers. We handle KYC/AML flow orchestration and compliance.
150+
Countries
30+
Currencies
Mobile Cross-Border Transaction App
Frequently Asked Questions
Get clear answers on our development process, security, and support for your global payments application.
We deliver a production-ready MVP in 8-12 weeks. This includes core features like multi-currency wallets, fiat on/off ramps, and cross-chain settlement. Complex integrations (e.g., specific local payment rails, advanced compliance modules) may extend the timeline, which we scope and agree upon before project kickoff.
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