Web3 Payment Gateway Development: Accept Global Crypto Payments, Instantly.
Go beyond traditional finance. We build secure, custom, and compliant crypto payment solutions that unlock new markets, reduce overhead, and future-proof your revenue.
Why Build Your Web3 Gateway With Errna?
Traditional payment systems are slow, expensive, and exclusionary. We build the infrastructure for the new financial internet: fast, global, secure, and tailored to your exact business needs.
Instant Fiat Settlement
Eliminate cryptocurrency volatility risk. Our gateways allow you to accept crypto from customers and receive stable fiat currency (like USD or EUR) directly in your bank account, settled instantly at the point of sale.
Bank-Grade Security
Security is not an afterthought; it's our foundation. We leverage multi-signature wallets, hardware security modules (HSMs), smart contract audits, and AI-powered threat detection to protect your funds and your customers' data.
Seamless API & SDK Integration
Our developer-first approach means you get robust APIs and comprehensive SDKs for a frictionless integration. Your team can connect our payment gateway to your existing platform in days, not months.
Built-in Compliance Engine
Navigate the complex regulatory landscape with ease. Our solutions come with integrated KYC/AML verification tools and sophisticated transaction monitoring to ensure you meet global compliance standards from day one.
Global Reach, Lower Fees
Break free from the high fees and chargebacks of traditional card networks. Access a global customer base and significantly boost your profit margins with transaction fees that are a fraction of the cost of credit cards.
White-Label & Fully Custom
This is your payment gateway, not ours. We offer fully white-labeled and customizable solutions that align with your brand identity, user experience, and specific business logic for a truly bespoke financial tool.
24/7 Dedicated Expert Support
Your operations never sleep, and neither does our support. Our team of blockchain and payment experts is available around the clock to ensure your gateway runs smoothly and any issues are resolved instantly.
Proven CMMI 5 Expertise
With a history of delivering complex software solutions since 2003 and a CMMI Level 5 certified process, we bring a level of maturity, reliability, and quality assurance that is unmatched in the Web3 space.
AI-Enhanced Fraud Prevention
Stay ahead of emerging threats. We integrate advanced AI and machine learning models to analyze transaction patterns in real-time, proactively identifying and blocking fraudulent activity before it can impact your business.
Our Web3 Payment Gateway Services
We offer a complete suite of services to design, build, deploy, and maintain a high-performance Web3 payment gateway tailored to your unique ecosystem.
Custom Gateway Development
We build bespoke Web3 payment gateways from the ground up, designed to meet your specific business requirements, supported currencies, and desired user flow. This is the ultimate solution for enterprises seeking full control and unique functionality.
- Architecture designed for high-throughput and low latency.
- Support for any public or private blockchain network.
- Fully owned IP and source code.
White-Label Gateway (SaaS)
Launch your branded crypto payment gateway in record time. Our production-ready, white-label solution provides a secure, scalable, and feature-rich platform that you can customize and deploy under your own brand.
- Fast time-to-market for immediate revenue generation.
- Lower upfront investment compared to custom development.
- Continuously updated with new features and security patches.
On-Ramp & Off-Ramp Integration
Bridge the gap between fiat and crypto. We integrate secure on-ramp (fiat-to-crypto) and off-ramp (crypto-to-fiat) solutions, allowing your users to easily buy, sell, and use digital assets within your platform.
- Connect with leading liquidity providers for competitive rates.
- Support for global payment methods like credit cards and bank transfers.
- Enhances user adoption by simplifying the crypto experience.
Smart Contract Development
Automate complex payment logic with secure smart contracts. We develop and audit contracts for escrow services, recurring payments, automated royalty distributions, and other decentralized financial workflows.
- Gas-optimized code to minimize transaction costs.
- Rigorous testing and formal verification for maximum security.
- Enables trustless, automated transactions without intermediaries.
Multi-Chain Wallet Integration
Provide your users with a unified payment experience across multiple blockchain ecosystems. We build and integrate non-custodial wallets that support a wide range of cryptocurrencies and NFTs from different networks.
- Support for EVM and non-EVM chains (e.g., Ethereum, Solana, Bitcoin).
- Secure key management and user-friendly interfaces.
- WalletConnect and browser extension compatibility.
DeFi Payment Solutions
Integrate decentralized finance protocols directly into your payment flow. Allow users to pay with yield-bearing assets, stablecoins, or even stream payments in real-time using advanced DeFi primitives.
- Unlock novel payment models and revenue streams.
- Integration with lending, staking, and yield farming protocols.
- Enhance capital efficiency for you and your users.
Subscription & Recurring Billing
Implement automated recurring payments for your SaaS, membership, or content platform using cryptocurrency. Our smart contract-based solutions ensure reliable and timely billing without manual intervention.
- Reduces failed payments and involuntary churn compared to credit cards.
- Flexible billing cycles (monthly, yearly, etc.).
- Full control over subscription management for users.
KYC/AML & Compliance Modules
Ensure your gateway is fully compliant with global regulations. We integrate robust Know Your Customer (KYC) and Anti-Money Laundering (AML) solutions for identity verification and real-time transaction monitoring.
- Partnerships with leading identity verification providers.
- Configurable risk-scoring and automated reporting.
- Helps secure banking relationships and institutional partnerships.
Transaction Analytics Dashboard
Gain actionable insights into your payment flows. We build comprehensive dashboards that provide real-time data on transaction volume, popular currencies, user demographics, and other key performance indicators.
- Customizable reports for finance and operations teams.
- Track revenue, fees, and settlement times with precision.
- Identify trends to optimize your business strategy.
E-commerce Plugin Development
Seamlessly enable crypto payments on popular e-commerce platforms. We develop custom plugins for Shopify, WooCommerce, Magento, and others, making it easy for merchants to start accepting Web3 payments.
- Simple installation and configuration for merchants.
- Automatic order status updates and inventory management.
- Expands your gateway's reach to thousands of online stores.
Volatility Hedging Solutions
Protect your business from cryptocurrency price fluctuations. Beyond instant fiat settlement, we can implement advanced automated hedging strategies that use financial derivatives to lock in value for delayed settlements.
- Ideal for businesses with complex treasury management needs.
- Reduces risk for cross-border B2B transactions.
- Automated execution based on predefined risk parameters.
API & SDK Development
Empower developers to build on your payment ecosystem. We create well-documented, secure, and easy-to-use APIs and Software Development Kits (SDKs) for various programming languages and platforms.
- RESTful and WebSocket APIs for flexible integration.
- SDKs for web, iOS, and Android environments.
- Comprehensive developer portal with tutorials and support.
Security Audits & Penetration Testing
Ensure your payment gateway is impenetrable. Our cybersecurity experts conduct rigorous security audits, smart contract analysis, and penetration testing to identify and remediate any potential vulnerabilities.
- Comprehensive reports with actionable recommendations.
- Testing against OWASP Top 10 and common blockchain attack vectors.
- Builds trust with users and institutional partners.
Token Gating for Payments
Create exclusive payment options or offer special discounts to holders of specific tokens or NFTs. This powerful Web3-native feature can drive community engagement and reward loyal customers.
- Verify token ownership on-chain in real-time.
- Integrate with your existing loyalty or membership programs.
- A unique marketing tool to attract the crypto-native audience.
24/7/365 Maintenance & Support
We provide ongoing maintenance, security monitoring, and technical support to ensure your payment gateway operates at peak performance. Our dedicated team is always on standby to manage updates and resolve any issues.
- Proactive system monitoring and incident response.
- Regular software updates and security patching.
- Tiered support plans to meet your specific needs.
Our Proven Development Process
We follow a CMMI Level 5 certified, agile methodology to ensure transparency, efficiency, and a final product that perfectly aligns with your strategic goals.
1. Discovery & Strategy
We begin with in-depth workshops to understand your business model, technical requirements, compliance needs, and long-term vision. We define the project scope, architecture, and roadmap.
2. Design & Prototyping
Our UI/UX experts design an intuitive and secure user flow. We create wireframes and interactive prototypes to visualize the end-user experience before writing a single line of code.
3. Agile Development
Working in two-week sprints, our developers build the gateway's core components, APIs, and smart contracts. You get regular demos and can provide feedback throughout the entire process.
4. Rigorous Testing & Security Audit
Quality assurance is paramount. We conduct extensive testing, including unit, integration, and performance tests. An independent security audit and penetration test are performed to ensure maximum security.
5. Deployment & Support
We manage the full deployment to your chosen cloud or on-premise infrastructure. After launch, we provide comprehensive support, monitoring, and maintenance to ensure flawless operation.
Success Stories
Reducing Transaction Fees for a Global E-commerce Retailer
Client Overview: A rapidly growing online fashion retailer with a significant international customer base was struggling with high credit card processing fees (averaging 3.5%) and frequent cross-border payment failures. They wanted to tap into the crypto market and reduce operational overhead.
The Challenge: They needed a payment solution that could accept popular cryptocurrencies, instantly convert them to USD to avoid volatility, and integrate seamlessly into their existing Shopify-based checkout process without disrupting the user experience.
Key Challenges:
- High credit card and currency conversion fees.
- Losing customers in emerging markets due to payment friction.
- Concerns about managing crypto volatility.
- Requirement for a simple, non-technical merchant dashboard.
Positive Outcomes:
Enabling Recurring Crypto Subscriptions for a B2B SaaS Company
Client Overview: A B2B SaaS provider in the marketing analytics space wanted to cater to their growing base of Web3-native clients. Their existing Stripe integration couldn't handle crypto, and they were losing potential customers who preferred to pay with digital assets.
The Challenge: The primary goal was to build a reliable, automated system for recurring monthly subscriptions using stablecoins (like USDC and USDT). The solution needed to integrate with their user authentication system and provide clear reporting for their finance team.
Key Challenges:
- Lack of a reliable crypto-native subscription model.
- High rate of failed credit card payments causing churn.
- Need for automated invoicing and tax reporting.
- Ensuring a simple subscription management portal for clients.
Positive Outcomes:
Building a High-Throughput, Multi-Chain Gateway for an NFT Marketplace
Client Overview: An emerging NFT marketplace specializing in digital art and collectibles needed a robust payment infrastructure to handle high-volume primary sales and secondary market royalties. Their initial solution was limited to a single blockchain and couldn't scale.
The Challenge: We were tasked with building a multi-chain payment gateway supporting Ethereum, Solana, and Polygon. It needed to handle thousands of concurrent transactions during popular NFT drops and automatically calculate and distribute royalties to artists via a custom smart contract.
Key Challenges:
- Scaling issues during high-traffic NFT mints.
- High gas fees on the Ethereum network deterring users.
- Complex royalty-splitting logic.
- Need for a secure, non-custodial wallet connection.
Positive Outcomes:
Technology Stack & Tools
We build with a modern, battle-tested technology stack, ensuring your payment gateway is secure, scalable, and interoperable.
What Our Clients Say
"Errna's team delivered a robust and secure payment gateway that has been a game-changer for our international sales. The instant fiat settlement feature is brilliant—it completely removed our concerns about crypto volatility. True professionals from start to finish."
"We needed a custom, white-label solution, and Errna exceeded our expectations. They understood our complex B2B SaaS billing requirements and built a recurring payment system that has significantly reduced churn. Their technical expertise is top-tier."
"The security audit and penetration testing they conducted were incredibly thorough. The Errna team identified potential vulnerabilities we hadn't considered and provided clear, actionable steps to fortify our infrastructure. We now have full confidence in our platform's security."
"Integrating their on-ramp solution was surprisingly fast. The API is well-documented, and their developer support was fantastic. Our users can now buy crypto directly in our app, which has massively improved user experience and engagement."
"As an NFT marketplace, transaction speed and reliability during drops are critical. The multi-chain gateway Errna built for us handles peak loads flawlessly. The automated royalty distribution smart contract saves our team countless hours each month."
"Their CMMI Level 5 process maturity is evident in their work. The project was managed impeccably, with clear communication and on-time delivery at every stage. It's rare to find this level of professionalism and technical skill in the blockchain space."
Frequently Asked Questions
Our primary solution is instant fiat settlement. The moment a customer pays in crypto, we lock in the exchange rate and deposit the equivalent fiat amount (e.g., USD, EUR) into your account. This means you, the merchant, are never exposed to the price fluctuations of the cryptocurrency. For more advanced needs, we can also implement automated hedging strategies.
Our gateways are blockchain-agnostic. We can integrate support for any major cryptocurrency, including Bitcoin (BTC), Ethereum (ETH), and popular stablecoins like USDC, USDT, and DAI. We support multiple blockchain networks like Ethereum, Solana, Polygon, BNB Chain, and more, depending on your specific requirements.
The timeline varies based on complexity. A standard integration of our white-label solution with an existing platform via API can take as little as 2-4 weeks. A fully custom-built gateway with unique features will typically take 3-6 months, following our agile development process.
Web3 payment gateways offer significant savings. While credit card fees typically range from 2.5% to 4%, our solutions usually have transaction fees around 1% or less, depending on the volume and services required. Plus, with crypto payments, chargeback fraud is virtually eliminated, saving you even more.
We integrate with leading identity verification and transaction monitoring services. Our built-in compliance modules can be configured to meet the specific KYC/AML regulations of your jurisdiction, including customer identity checks, risk scoring, and reporting for suspicious activity.
No, not unless you want to. With our instant fiat settlement feature, you never have to hold crypto. The funds are converted and sent to your bank account in your local currency. This simplifies accounting and removes any treasury management burden associated with digital assets.
Ready to Future-Proof Your Payments?
Unlock new revenue streams, reduce costs, and access a global market of millions of crypto users. Schedule a free consultation with our Web3 payment experts to discuss your project and get a personalized strategy and quote.