Payment Gateway Development
Payment gateway development requires deep expertise in financial systems, security architecture, and regulatory compliance. We build custom payment gateways that process fiat and crypto, support multiple currencies, detect fraud in real-time, and maintain PCI compliance. Our team has built exchange infrastructure handling millions in daily volume, giving us the experience to create payment systems that perform under pressure.
Why Build a Custom Payment Gateway
Off-the-shelf payment solutions work until they don't. High transaction fees eat into margins. Limited customization blocks product innovation. Dependency on third-party roadmaps slows your business.
A custom payment gateway gives you control. Set your own fee structures. Build checkout experiences that convert. Integrate payment methods your competitors can't offer. Own the relationship with processors instead of renting it.
For businesses processing significant volume or operating in specialized markets, custom payment infrastructure pays for itself. Lower per-transaction costs, higher approval rates through smart routing, and the flexibility to move fast on new payment methods.
Payment Capabilities
From traditional card processing to cryptocurrency, we build payment systems that handle the full spectrum of modern commerce.
Fiat Payment Processing
Credit cards, debit cards, ACH, wire transfers, and local payment methods. Support for Visa, Mastercard, Amex, and regional networks with real-time authorization and settlement.
Cryptocurrency Payments
Accept Bitcoin, Ethereum, stablecoins, and other digital assets. Instant conversion to fiat if needed. Hot and cold wallet infrastructure with institutional-grade security.
Multi-Currency Support
Process payments in 100+ currencies with real-time FX rates. Dynamic currency conversion, multi-currency merchant accounts, and cross-border settlement optimization.
Payment Orchestration
Route transactions across multiple processors for higher approval rates. Failover logic, smart routing based on card type and geography, and processor-agnostic architecture.
Compliance and Security
Payment systems face constant scrutiny from regulators and attackers. We build with both in mind from day one.
PCI DSS Compliance
Level 1 PCI DSS compliant architecture from the ground up. Tokenization, encryption at rest and in transit, secure key management, and annual audit readiness.
Regulatory Compliance
Money transmission licensing support, AML/KYC integration, sanctions screening, and jurisdiction-specific reporting. We build systems that satisfy regulators.
Fraud Detection
Machine learning fraud scoring, velocity checks, device fingerprinting, and 3D Secure integration. Block fraud without blocking legitimate customers.
Integration Approach
Payment gateways need to connect with everything: processors, banks, fraud systems, accounting software. We design for interoperability.
API-First Design
RESTful APIs with comprehensive documentation. SDKs for major platforms. Webhooks for real-time notifications. Built for developers who need to integrate fast.
Processor Connections
Pre-built integrations with major processors: Stripe, Adyen, Worldpay, First Data, and regional acquirers. Add new processors without rebuilding your system.
Settlement Systems
Automated reconciliation, split payments, marketplace payouts, and real-time settlement reporting. Handle complex money flows between multiple parties.
Our Development Process
Building payment infrastructure requires careful planning, rigorous security, and thorough testing before a single transaction flows through.
Requirements & Compliance
Define payment flows, regulatory requirements, processor relationships, and security standards before writing code.
Architecture & Development
Build PCI-compliant infrastructure with tokenization, encryption, fraud detection, and processor integrations.
Testing & Certification
Comprehensive security testing, PCI audit preparation, processor certification, and load testing under realistic conditions.
Launch & Monitoring
Gradual traffic migration, real-time monitoring, fraud tuning, and ongoing optimization as volume grows.
Why Hexmount for Payment Gateway Development
Building payment infrastructure demands experience with high-stakes financial systems. We have it.
Exchange-Grade Infrastructure
We built trading systems handling millions in daily volume. Payment gateways need the same reliability, security, and performance under pressure.
Compliance Experience
Shipped fintech products in complex regulatory environments. We know how to build payment systems that satisfy compliance teams and pass audits.
Full-Stack Capability
From frontend checkout to backend settlement, we handle the entire payment stack. No gaps, no handoffs, no finger-pointing between vendors.
Related Services
Payment gateways are part of a broader fintech ecosystem. Explore related services we offer.
Ready to Build Your Payment Gateway?
Building a custom payment gateway? Need multi-currency support or crypto integration? We have experience with high-volume payment infrastructure and complex compliance requirements. Tell us what you're building.
We choose our clients as much as they choose us. Let's see if we're a fit.