We architect and deploy custom Solidity/Rust smart contracts with formal verification and comprehensive audit trails. Our focus is on security-first development, leveraging battle-tested patterns from OpenZeppelin and implementing multi-signature governance and upgradeable proxy patterns by default.
LABS
Services
Legacy Payment Rail Connector Services
We build secure smart contract adapters and API gateways to connect your blockchain settlement layer with traditional payment systems like SWIFT, ACH, and domestic real-time networks.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
Reduce your time-to-market from months to weeks with our templated, modular approach.
- End-to-End Delivery: From initial specification and
Hardhat/Foundrysetup to deployment onEVM/L2/Solanamainnet. - Security as Standard: Every contract undergoes peer review, automated analysis with
Slither/MythX, and integration with monitoring tools. - Measurable Outcomes: Achieve gas optimization savings of 15-40%, 99.9%+ uptime post-launch, and clear documentation for your team.
key-features-cards
ENTERPRISE-GRADE INTEGRATION
Core Connector Capabilities
Our connectors are engineered for reliability and scale, providing a seamless bridge between blockchain value and traditional financial rails. We handle the complex compliance and technical integration, so you can focus on your product.
benefits
TANGIBLE RESULTS
Business Outcomes for Your Platform
Our legacy payment rail connectors deliver measurable improvements to your platform's operations, compliance, and user experience. Go beyond basic integration to achieve specific business goals.
01
Expand Your Market Reach
Instantly unlock access to billions of users and trillions in transaction volume by connecting to ACH, SEPA, SWIFT, and domestic card networks. Serve customers in regions where crypto on/off-ramps are not yet viable.
150+
Countries Supported
3+
Major Rails
02
Reduce Settlement Time & Costs
Automate reconciliation and settlement workflows to cut manual processing by over 80%. Our connectors handle currency conversion, fee calculations, and compliance checks, reducing operational overhead and speeding up fund availability.
80%
Ops Reduction
< 24h
Settlement Time
03
Ensure Regulatory Compliance
Deploy with built-in compliance for AML, KYC, and sanctions screening. Our connectors are designed to meet the regulatory requirements of major financial jurisdictions, reducing your legal risk and audit burden.
Built-in
AML/KYC
PCI DSS
Compliant
04
Improve User Onboarding & Retention
Offer a seamless, familiar payment experience. Users can fund accounts or cash out using their existing bank accounts and cards, eliminating the friction of learning new crypto-specific payment methods.
90%+
Success Rate
2-3 Clicks
User Flow
05
Gain Real-Time Financial Visibility
Access unified dashboards and APIs for tracking transactions, fees, and settlements across all connected rails. Make data-driven decisions with clear insights into cash flow and payment performance.
Real-Time
Reporting
Unified API
Single Interface
06
Future-Proof Your Payment Stack
Build on a modular, API-first architecture that easily adapts to new regulations, payment methods, and banking partners. Avoid vendor lock-in and technical debt with our standardized connector framework.
API-First
Architecture
Modular
Design
Choose Your Integration Path
Phased Development Tiers
A structured approach to connecting your application to legacy payment rails (SWIFT, SEPA, Fedwire). Select the tier that matches your project's scale, timeline, and compliance requirements.
| Feature / Deliverable | Discovery & Architecture | Core Integration | Full-Scale Production |
|---|---|---|---|
Technical Design & API Specification | |||
Smart Contract Connector for On/Off Ramps | Proof-of-Concept | Production-Ready | Production-Ready + Custom Logic |
Banking Partner Gateway Integration | Sandbox Only | 1 Primary Rail | Multi-Rail (SWIFT, SEPA, etc.) |
Compliance & KYC/AML Workflow Design | Framework Outline | Basic Integration | Advanced, Automated System |
End-to-End Transaction Testing | Simulated Environment | Staging with Test Nets | Live Pilot with Partner Bank |
Production Deployment & Go-Live Support | Assisted Deployment | Managed Launch & Cutover | |
Ongoing Monitoring & 24/7 Support SLA | Business Hours | 24/7 with 1-Hour Response | |
Typical Timeline | 2-3 Weeks | 6-10 Weeks | 12-16 Weeks |
Estimated Investment | $15K - $25K | $75K - $150K | Custom Quote ($200K+) |
how-we-deliver
PROVEN FRAMEWORK
Our Integration Methodology
We deploy a structured, four-phase approach to connect your Web3 application with traditional payment rails, ensuring security, compliance, and rapid time-to-market.
01
Architecture & Discovery
We analyze your existing stack and transaction flows to design a secure, scalable integration blueprint. This phase defines the optimal API endpoints, data models, and compliance guardrails.
2-5 days
Scoping Sprint
100%
Requirement Mapping
02
Secure Gateway Development
Our engineers build the core connector using battle-tested libraries and financial-grade security protocols (TLS 1.3, FIPS 140-2). We implement idempotent APIs and real-time webhooks for reliable payment status.
ISO 27001
Security Framework
< 100ms
P99 Latency Target
03
Compliance & Reconciliation Engine
We integrate automated AML/KYC checks via trusted providers and build a dual-ledger reconciliation system. This ensures every on-chain settlement matches its off-chain counterpart with audit trails.
24/7
Transaction Monitoring
0.00%
Reconciliation Drift
04
Deployment & SLA Governance
We manage the staged rollout to production, including load testing and failover setup. You receive a dedicated dashboard and are backed by a 99.9% uptime SLA with 24/7 incident response.
99.9%
Uptime SLA
< 15 min
Mean Time to Resolution
Legacy Payment Rail Connector
Frequently Asked Questions
Common questions about integrating traditional payment systems with blockchain infrastructure.
A Legacy Payment Rail Connector is a secure, API-driven middleware that bridges traditional financial systems (like ACH, SWIFT, SEPA, and card networks) with blockchain protocols. You need one to enable real-world payments for your Web3 application, allowing users to fund wallets with fiat, cash out to bank accounts, or accept card payments for NFTs and digital assets. It solves the critical on/off-ramp challenge for mainstream adoption.
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