We architect and deploy production-ready smart contracts that power your protocol's core logic. Our development process is built for security and speed, delivering audit-ready code in 2-4 weeks for a standard MVP.
LABS
Services
Fiat-Crypto Gateway API Integration
Enterprise-grade API development and integration for secure, compliant fiat-to-crypto and crypto-to-fiat transactions, connecting traditional banking rails to blockchain networks.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built to your exact specifications.
We don't just write code; we engineer systems that are secure by design, saving you costly refactors and protecting your users' assets.
- Full-Stack Expertise: From
ERC-20tokens andERC-721NFTs to complex DeFi vaults, cross-chain bridges, and custom DAO governance.
- Security-First Development: Built on
Solidity 0.8+using established patterns from OpenZeppelin. Every line is written with audit readiness in mind.
- End-to-End Delivery: We handle development, testing (
Hardhat/Foundry), deployment scripting, and initial verification on block explorers like Etherscan.
key-features-cards
BUILT FOR SCALE
Core Technical Capabilities
Our fiat-crypto gateway is engineered for enterprise-grade reliability, security, and performance. We handle the complex infrastructure so you can focus on your core product.
01
PCI DSS Compliant Infrastructure
Secure payment processing with Level 1 PCI DSS compliance. We manage the entire payment stack, eliminating your PCI scope and reducing compliance overhead by up to 80%.
Level 1
PCI DSS
0 Scope
For You
02
Multi-Provider Orchestration
Intelligent routing across 15+ global payment providers and liquidity pools. Ensures optimal rates and 99.9% uptime, even during single-provider outages.
15+
Providers
99.9%
Uptime SLA
03
Real-Time AML/KYC Screening
Automated, configurable compliance checks integrated directly into the transaction flow. Supports global sanctions lists and custom risk rules with <100ms latency.
< 100ms
Check Latency
Global
Sanctions Lists
05
Smart Settlement & Reconciliation
Automated daily settlement to your treasury wallet with detailed reporting. Reduces manual reconciliation work and provides full audit trails for all transactions.
Daily
Auto-Settlement
Full Audit
Trail
06
Custom Integration & White-Labeling
Fully branded checkout flows and SDKs for web & mobile. Our team handles end-to-end integration, typically completing deployment in under 2 weeks.
< 2 weeks
Deployment
Web & Mobile
SDKs
benefits
MEASURABLE RESULTS
Business Outcomes for FinTechs & Neobanks
Integrating our Fiat-Crypto Gateway API delivers concrete advantages, from accelerated revenue streams to fortified compliance. Here’s what you can expect.
01
Accelerated Time-to-Revenue
Deploy a fully compliant, production-ready on/off-ramp in under 2 weeks. Start generating transaction fee revenue and capturing new user segments faster than building in-house.
< 2 weeks
Average Deployment
24/7
Revenue Generation
02
Reduced Compliance Overhead
Leverage our pre-integrated KYC/AML/KYB compliance stack, certified to global standards (FATF Travel Rule, 5AMLD). Eliminate the cost and complexity of managing licenses and screening.
150+
Jurisdictions Covered
0
Licensing Headaches
03
Enhanced User Acquisition & Retention
Offer a seamless, familiar payment experience (cards, bank transfers) with 99.9% uptime. Reduce user drop-off and increase lifetime value with a reliable, intuitive gateway.
99.9%
Platform Uptime SLA
< 60 sec
Average Transaction Time
04
Optimized Operational Costs
Replace the high fixed costs of building and maintaining payment rails, liquidity pools, and fraud systems with a predictable, usage-based API model. Scale efficiently.
90%
Lower Build Cost
Pay-as-you-go
Pricing Model
05
Future-Proofed Payment Infrastructure
Our API abstracts away blockchain complexity, providing a single integration point that automatically supports new tokens, networks, and regional payment methods as they emerge.
50+
Supported Cryptocurrencies
20+
Fiat Currencies
06
Enterprise-Grade Security & Audit Trail
Every transaction is cryptographically secured and logged on-chain, providing an immutable audit trail. Our infrastructure is built with bank-grade security and regular penetration testing.
SOC 2 Type II
Compliance
Immutable
Transaction Ledger
Strategic Comparison
Build vs. Buy vs. Partner with Chainscore
Evaluating the most effective path to launch a secure, compliant, and scalable fiat-crypto gateway for your application.
| Key Factor | Build In-House | Buy Generic API | Partner with Chainscore |
|---|---|---|---|
Time to Launch | 6-12+ months | 4-8 weeks | 2-4 weeks |
Initial Development Cost | $250K - $750K+ | $50K - $150K | $25K - $75K |
Compliance & Licensing | Your responsibility (High Risk) | Provider's responsibility (Variable) | Our responsibility (Guaranteed) |
Security & Audit Burden | High (Unaudited Code) | Medium (Shared Infrastructure) | Low (Fully Audited, Isolated) |
Supported Currencies & Regions | Custom (Slow to expand) | Fixed List | Custom + Rapid Expansion |
Technical Maintenance | Full internal team required | Limited by provider roadmap | Fully managed with 99.9% SLA |
Integration Complexity | Extreme (Full stack) | Moderate (API only) | Minimal (SDK + Dedicated Support) |
Settlement Speed | Variable (You build it) | < 5 minutes | < 60 seconds |
Payout Flexibility | Full control (High dev cost) | Limited by provider | Fully customizable logic |
Total Cost of Ownership (Year 1) | $500K+ | $150K - $300K | $75K - $200K |
how-we-deliver
PROVEN PROCESS
Our Integration Methodology
A structured, four-phase approach that de-risks your fiat-crypto gateway integration, ensuring a secure, compliant, and scalable launch.
01
Architecture & Compliance Review
We analyze your business model and target markets to design a compliant gateway architecture. Our experts ensure adherence to regional AML/KYC frameworks and select optimal payment rails (SEPA, SWIFT, ACH, PIX).
50+
Jurisdictions Mapped
PCI DSS L1
Compliance Standard
02
API & Smart Contract Development
Our engineers build your secure, documented REST APIs and the underlying smart contracts for on-chain settlement. We use battle-tested patterns for fund custody, transaction routing, and fraud detection.
OpenZeppelin
Security Audit
< 2 sec
API Latency
03
Staging & Security Audit
Your gateway is deployed to a production-like staging environment. We conduct penetration testing, load testing up to 1,000 TPS, and a full smart contract audit to ensure security and performance under load.
100%
Test Coverage
1,000 TPS
Load Tested
04
Production Deployment & Monitoring
We manage the production rollout with zero-downtime deployment. You gain access to our 24/7 monitoring dashboard for transaction health, liquidity pools, and real-time alerts on anomalies.
99.9%
Uptime SLA
24/7
Incident Response
security-compliance
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect and deploy custom smart contracts on EVM-compatible chains (Ethereum, Polygon, Arbitrum) and Solana. Our process is built for enterprise-grade security and speed to market.
- Security-First Development: All code follows
OpenZeppelinstandards and undergoes multi-stage audits before deployment. - Full-Stack Integration: Contracts are delivered with comprehensive documentation and integration-ready APIs for your frontend.
Reduce your time-to-market from months to weeks with our battle-tested development framework.
We specialize in:
- DeFi Protocols: DEXs, lending/borrowing platforms, yield aggregators.
- NFT Ecosystems:
ERC-721A,ERC-1155marketplaces with advanced minting logic. - Enterprise Logic: Custom tokenomics (
ERC-20), multi-signature wallets, and governance systems.
Technical & Commercial Insights
Fiat Gateway Integration FAQs
Answers to the most common questions CTOs and product leads ask when evaluating a fiat on-ramp integration partner.
A standard fiat gateway integration takes 2-4 weeks to go live. This includes API integration, KYC/AML provider configuration, payment method setup, and end-to-end testing. Complex requirements like custom UI/UX or multi-region compliance can extend this to 6-8 weeks. We provide a detailed project plan with weekly milestones during the discovery phase.
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