We architect and deploy audit-ready smart contracts on EVM and Solana. Our engineers write in Solidity 0.8+ and Rust, leveraging battle-tested patterns from OpenZeppelin and Anchor to eliminate common vulnerabilities and reduce audit cycles by up to 40%.
LABS
Services
Cross-Border Payment API Solutions
Turnkey API solutions that leverage stablecoins and blockchain rails to enable businesses to send and receive near-instant, low-cost international payments and remittances, with built-in FX and compliance checks.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your dApp.
From tokenomics to complex DeFi logic, we translate your business requirements into gas-efficient, secure code.
- Custom Development:
ERC-20,ERC-721,ERC-1155, staking pools, automated market makers (AMMs), and bespoke DeFi primitives. - Security-First Process: Multi-stage review, static analysis with
Slither/Mythril, and formal verification for critical functions. - Full Lifecycle Support: Development, testing on
Sepolia/Devnet, mainnet deployment, and post-launch monitoring.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Capabilities of Our Payment API
Our API delivers the technical foundation for fast, compliant, and cost-effective global payments. Built for engineering teams that need reliability and control.
01
Real-Time Settlement
Process cross-border payments in seconds, not days. Our infrastructure leverages stablecoin rails and automated on-chain settlement to eliminate traditional banking delays.
Key Benefit: Improve cash flow and user experience with near-instant finality.
< 10 sec
Avg. Settlement
24/7/365
Availability
02
Multi-Currency & FX Engine
Support 50+ fiat currencies and major stablecoins (USDC, EURC) with built-in, real-time foreign exchange. Automated routing finds the optimal path for cost and speed.
Key Benefit: Expand to new markets instantly without managing multiple banking partners.
50+
Currencies
< 0.5%
FX Spread
03
Regulatory Compliance Stack
Embedded KYC/AML checks, transaction monitoring, and sanctions screening. Our systems are designed for global compliance, including Travel Rule (FATF 16) readiness.
Key Benefit: Launch faster with pre-integrated compliance, reducing legal overhead and risk.
200+
Jurisdictions
SOC 2 Type II
Certified
05
Programmable Treasury
Automate fund flows with smart contract-based rules for escrow, recurring payments, and conditional releases. Full visibility and control over liquidity across chains.
Key Benefit: Automate complex payment logic (e.g., payroll, vendor payouts) without manual intervention.
5+
Blockchains
Audited
Smart Contracts
06
Enterprise Dashboard & Analytics
Real-time dashboard for monitoring transactions, liquidity positions, and compliance status. Export detailed reports for reconciliation and accounting.
Key Benefit: Gain operational clarity with a single pane of glass for all cross-border payment activity.
Real-Time
Reporting
API Access
All Data
benefits
MEASURABLE RESULTS
Business Outcomes for Your Platform
Our Cross-Border Payment API delivers concrete, quantifiable improvements to your financial operations, from cost structure to user experience.
01
Radically Lower Transaction Costs
Bypass traditional correspondent banking networks. Our API leverages stablecoins and on-chain settlement to reduce cross-border payment fees by up to 90% compared to legacy SWIFT or card networks.
Up to 90%
Cost Reduction
< $0.01
Avg. Settlement Fee
02
Sub-Minute Settlement Finality
Eliminate multi-day settlement delays. Transactions are confirmed on-chain in seconds, providing near-instant finality for payers and payees, improving cash flow and operational efficiency.
< 60 sec
Settlement Time
24/7/365
Availability
03
Enterprise-Grade Security & Compliance
Built with institutional security in mind. Our infrastructure is SOC 2 Type II compliant, integrates with leading AML/KYC providers, and employs multi-sig treasury management for fund security.
SOC 2 Type II
Compliance
99.95%
Uptime SLA
04
Seamless Developer Integration
Launch in weeks, not quarters. Our RESTful APIs and comprehensive SDKs mirror traditional payment rails, allowing your engineering team to integrate cross-border capabilities with minimal blockchain expertise required.
< 3 weeks
Avg. Integration
5+
SDK Languages
05
Global Liquidity & FX Execution
Access deep, on-demand liquidity across 50+ fiat corridors. Our smart order routing aggregates multiple DEXs and market makers to provide optimal FX rates without manual intervention.
50+
Fiat Corridors
Sub-1%
FX Spread
06
Transparent, Auditable Ledger
Every transaction is immutably recorded on-chain, providing a single source of truth for reconciliation, audit trails, and real-time reporting. Eliminate disputes and simplify compliance reporting.
Real-time
Transaction Tracking
Immutable
Audit Trail
Cross-Border Payment Infrastructure
Build vs. Buy: The Chainscore Advantage
Compare the total cost, risk, and time investment of developing a compliant cross-border payment system in-house versus using Chainscore's production-ready API.
| Factor | Build In-House | Chainscore API |
|---|---|---|
Time to Market (MVP) | 6-12+ months | 2-4 weeks |
Initial Development Cost | $250K - $750K+ | $25K - $75K setup |
Compliance & Licensing Overhead | High (Your responsibility) | Managed (Our responsibility) |
Smart Contract Security Risk | High (Requires full audit) | Low (Pre-audited, battle-tested) |
Supported Fiat Currencies & Corridors | Limited (Manual integrations) | 30+ currencies, 100+ corridors |
Ongoing DevOps & Node Maintenance | Full team required | Fully managed, 99.9% SLA |
FX Rate Optimization & Liquidity | Complex partner negotiations | Built-in with aggregated CEX/DEX |
Total Cost of Ownership (Year 1) | $500K - $1.5M+ | $100K - $300K |
Regulatory Updates & Monitoring | Your legal team | Continuous, included |
how-we-deliver
PROVEN PROCESS
Our Delivery Methodology
Our structured, four-phase approach ensures your cross-border payment API is delivered on time, on budget, and with the security and scalability your business demands.
01
Discovery & Architecture
We conduct a deep technical analysis of your payment corridors, regulatory landscape, and liquidity requirements to design a bespoke system architecture. This phase establishes clear technical specifications, risk assessments, and a detailed project roadmap.
1-2 weeks
Phase Duration
100%
Requirement Sign-off
02
Secure Smart Contract Development
Our engineers build the core settlement logic using audited Solidity patterns. We implement multi-signature wallets, automated compliance checks, and gas-optimized transaction routing for stablecoins and native tokens.
OpenZeppelin
Security Base
2-4 weeks
Dev Sprint
03
API Gateway & Integration
We deliver a fully documented REST/WebSocket API with SDKs for seamless integration into your existing platforms. Features include real-time FX rates, payment status tracking, and webhook notifications for settlement events.
< 100ms
API Latency
Node.js / Python
SDK Support
04
Deployment & Ongoing Support
We manage the deployment to your chosen infrastructure (AWS, GCP, or on-premise) with full CI/CD pipelines. Post-launch, we provide 24/7 monitoring, performance optimization, and dedicated technical support with defined SLAs.
99.9%
Uptime SLA
< 15 min
Support Response
security-compliance
CORE SERVICE
Smart Contract Development
Secure, gas-optimized smart contracts built by Web3-native engineers.
We architect and deploy production-grade smart contracts for tokens, DeFi protocols, and NFT ecosystems. Our code is built for security first, gas efficiency, and composability with the broader Web3 stack.
- Full Lifecycle Development: From
ERC-20/ERC-721tokens to complex DeFi logic, we handle design, implementation, testing, and deployment. - Security by Default: Every contract undergoes rigorous internal review and is built with
OpenZeppelinstandards. We facilitate third-party audits with firms like ConsenSys Diligence or CertiK. - Optimized for Production: We write gas-efficient Solidity (
0.8.x+), implement upgradeability patterns (Transparent Proxy,UUPS), and ensure comprehensive test coverage (>95%).
Deliver a secure, auditable, and maintainable codebase in 2-4 weeks, reducing your technical risk and accelerating your go-to-market.
Cross-Border Payment API
Frequently Asked Questions
Get clear answers on how our blockchain-powered payment API integrates, scales, and secures your global transactions.
Our API leverages blockchain for settlement in minutes, not days, with costs up to 90% lower than traditional correspondent banking. Unlike SWIFT, we offer programmable payments, real-time transaction tracking, and direct integration with DeFi liquidity pools for competitive FX rates. We handle compliance and liquidity, so you get the speed of crypto with the reliability of a regulated service.
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