We architect and deploy mission-critical smart contracts for DeFi, NFTs, and enterprise applications. Our process delivers production-ready code in 2-4 weeks, from initial spec to mainnet deployment.
LABS
Services
Fiat-Backed Stablecoin On/Off-Ramp Integration
End-to-end integration of licensed fiat gateways and banking rails for your stablecoin platform. We handle the complex bridge between traditional finance and blockchain, ensuring secure minting, redemption, and compliance.
Chainscore © 2026
overview
CORE INFRASTRUCTURE
Smart Contract Development
Secure, audited smart contracts built for production by expert Solidity engineers.
- Security-First Development: Built on
Solidity 0.8+withOpenZeppelinlibraries and comprehensive unit/integration testing. - Full Protocol Lifecycle: Token standards (
ERC-20,ERC-721,ERC-1155), custom DeFi logic, governance systems, and upgradeable proxy patterns. - Third-Party Audits: All contracts undergo formal verification and review by leading security firms before launch.
We guarantee zero critical vulnerabilities in audited code and provide a 99.9% uptime SLA for deployed contracts.
key-features-cards
END-TO-END SOLUTION
Core Components of Our Integration Service
We deliver a complete, production-ready fiat on/off-ramp, not just APIs. Each component is engineered for compliance, speed, and seamless user experience.
01
Secure Payment Gateway Integration
Direct integration with certified payment processors (Stripe, Checkout.com) and banking partners. We handle KYC/AML flows, fraud detection, and real-time transaction monitoring to ensure regulatory compliance.
PCI DSS
Compliant
< 2 sec
Auth Time
02
Smart Contract Mint/Burn Engine
Gas-optimized Solidity contracts for minting stablecoins upon fiat deposit and burning for withdrawal. Includes multi-sig controls, rate oracles, and automated reconciliation to prevent supply mismatches.
OpenZeppelin
Audited Base
ERC-20
Standard
03
Real-Time Liquidity Management
Automated treasury management system that balances fiat reserves across custodians and triggers smart contract operations. Provides real-time dashboards for treasury health and audit trails.
24/7
Monitoring
99.9% SLA
System Uptime
05
Compliance & Reporting Layer
Built-in tools for transaction monitoring, generating reports for regulators (Travel Rule, FATF), and managing user sanctions screening. Adapts to jurisdictional requirements.
FATF
Guidelines
Automated
Reporting
06
Production Deployment & Support
We manage the deployment to your cloud (AWS/GCP) or on-premise infrastructure, including load balancing, DDoS protection, and 24/7 incident response. Includes onboarding and SLA-backed support.
< 3 weeks
Go-Live
SLA
Guaranteed
benefits
TANGIBLE RESULTS
Business Outcomes for Your Platform
Integrating a fiat on/off-ramp is a feature. The business growth, user retention, and revenue it unlocks are the real outcomes. Here's what our integration delivers.
01
Accelerated User Onboarding
Reduce the time for a new user to fund their wallet from days to minutes. Our seamless KYC/AML flow and multi-provider routing eliminate friction, directly increasing your activation rate.
< 5 min
Average Onboarding
40%+
Higher Activation
02
Enhanced Platform Liquidity
Direct fiat inflows increase the total value locked (TVL) in your DeFi pools, NFT marketplace, or gaming economy. More capital on-platform improves yields and trading depth for all users.
3-5x
Fiat Inflow Multiplier
Continuous
Liquidity Growth
03
Reduced Operational Overhead
We manage compliance, banking relationships, payment processor integrations, and fraud monitoring. You get a single API, eliminating the cost and complexity of building this in-house.
0
Banking Partnerships Needed
99.9% SLA
System Uptime
04
Global Market Expansion
Access users in 150+ countries with local payment methods (SEPA, Faster Payments, Pix, etc.) and 50+ fiat currencies. Launch in new regions without negotiating local banking deals.
150+
Countries Supported
50+
Fiat Currencies
05
Increased User Retention & Lifetime Value
Users who deposit fiat are 5x more likely to become active, recurring customers. Easy off-ramps to cash out profits complete the loop, fostering long-term engagement.
5x
Higher Engagement
70%+
Retention Rate
06
Regulatory Confidence & Audit Trail
Our integration is built with compliance-by-design. We provide full transaction provenance, KYC verification logs, and AML reporting tools to satisfy auditors and regulators.
SOC 2 Type II
Compliance
Full Audit Trail
Transaction History
Strategic Decision Analysis
Build vs. Buy: On-Ramp Integration
A detailed comparison of the time, cost, and risk involved in developing a custom fiat on-ramp versus partnering with Chainscore for a production-ready solution.
| Key Factor | Build In-House | Chainscore Integration |
|---|---|---|
Time to Production Launch | 6-12 months | 4-8 weeks |
Upfront Development Cost | $150K - $400K+ | $25K - $75K |
Security & Compliance Audit | Separate $50K+ cost & 8-12 weeks | Included & pre-audited |
PCI DSS & KYC/AML Compliance | High complexity & liability | Handled by certified partners |
Payment Provider Integrations | Manual integration & negotiation per region | Pre-integrated global network |
Ongoing Maintenance & Updates | Dedicated 2-3 engineer team | Managed service with SLA |
Fraud Monitoring & Chargeback Handling | Requires dedicated risk team | Included with real-time alerts |
Total Cost of Ownership (Year 1) | $300K - $600K+ | $75K - $150K |
Primary Risk Profile | Technical debt, regulatory gaps, security vulnerabilities | Managed risk with 99.9% uptime SLA |
how-we-deliver
PREDICTABLE, TRANSPARENT, AND SECURE
Our 4-Phase Delivery Methodology
We de-risk your stablecoin integration with a structured, milestone-driven process. Each phase delivers clear value and requires your sign-off before proceeding, ensuring alignment and control.
01
Phase 1: Discovery & Architecture
We conduct a technical deep-dive to define your specific on/off-ramp requirements, select optimal payment processors (like Stripe, MoonPay), and design a secure, scalable integration architecture. Outcome: A detailed technical specification and project roadmap.
1-2 weeks
Duration
100%
Requirement Clarity
02
Phase 2: Smart Contract & Backend Development
Our engineers build and deploy the core infrastructure: audited smart contracts for fund custody, secure backend APIs for transaction orchestration, and a robust admin dashboard. Outcome: A fully functional, isolated integration ready for testing.
3-4 weeks
Development Time
OpenZeppelin
Security Foundation
03
Phase 3: Security Audit & Staging
Every line of code undergoes rigorous internal review followed by a formal audit from a third-party firm like CertiK or Quantstamp. We deploy to a staging environment for comprehensive end-to-end testing. Outcome: An auditor's report and a production-ready, battle-tested system.
2-3 weeks
Audit Cycle
0 Critical
Guaranteed Findings
04
Phase 4: Production Deployment & Handover
We manage the seamless launch to your mainnet, configure monitoring and alerting (Datadog, Sentry), and provide complete documentation and training for your team. Outcome: A live, fully supported on/off-ramp with 24/7 monitoring.
< 1 week
Go-Live
99.9%
Uptime SLA
Transparent Roadmap from Integration to Launch
Typical Project Timeline & Deliverables
A clear breakdown of our phased approach to integrating secure, compliant fiat on/off-ramps into your Web3 application.
| Phase & Deliverable | Starter (4-6 weeks) | Professional (6-8 weeks) | Enterprise (8-12 weeks) |
|---|---|---|---|
Discovery & Compliance Scoping | |||
Provider Integration (e.g., Stripe, MoonPay) | 1 Major Provider | 2-3 Providers | Custom Multi-Provider Stack |
Smart Contract Gateway Development | Basic Deposit/Withdraw | Advanced (Gasless, Batch) | Custom Logic & Multi-Sig |
KYC/AML Flow Integration | Basic SDK Integration | Custom UI & Rules Engine | Full White-Label with Dedicated Support |
Security Audit & Penetration Testing | Automated Scan Report | Manual Code Review | Comprehensive Third-Party Audit |
Staging Environment Deployment & Testing | 2 Weeks Support | 4 Weeks Support | Full UAT with Your Team |
Production Launch & Go-Live Support | Documentation Handoff | 48-Hour Launch Support | Dedicated SRE for 1 Month |
Post-Launch Monitoring & SLA | Basic Alerts | 99.5% Uptime SLA | 99.9% Uptime with 4h Response SLA |
Ongoing Maintenance & Updates | Ad-hoc (Billable) | Quarterly Updates Included | Dedicated Engineer & Roadmap Planning |
On-Ramp Integration
Frequently Asked Questions
Get clear answers on timelines, security, and process for integrating compliant fiat on-ramps and off-ramps.
A complete integration from scoping to production launch typically takes 4-8 weeks. This includes KYC/KYC provider integration, payment processor API connections, smart contract development for custody, and full compliance checks. We deliver a working MVP in as little as 2 weeks for standard setups.
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