AcceptFRECX PaymentsIn Seconds.
The payment gateway built exclusively for the Frequency Chain ecosystem. Invoices, QR codes, and API — powered by FRECX.
Amount Due
1,250.00
FRECX
Secured by Frequency Chain
The only payment gateway you need for the Frequency Chain ecosystem.
FPAY is purpose-built for FRECX. No multi-chain complexity, no third-party dependencies — just a direct, secure bridge between your business and the Frequency Chain network.
Generate invoices, accept QR payments at point-of-sale, or integrate our API into your e-commerce platform. Every transaction settles on-chain with full transparency.
FRECX Exclusive
Built from the ground up for the Frequency Chain. Mainnet and Testnet support with native FRECX token integration.
Three Payment Channels
Invoices for B2B, QR codes for retail, and a RESTful API for developers — all unified in one dashboard.
Non-Custodial
Your keys, your funds. Wallet signature verification ensures you maintain full control of every transaction.
Real-Time Everything
Instant payment confirmations, push notifications via Firebase, and webhook callbacks the moment funds arrive.
Three ways to get paid
with FRECX.
Each channel is built for a different use case. Choose what fits your business, or use all three.
Invoice Payments
Create professional crypto invoices with auto-generated numbers, shareable payment links, and real-time status tracking. Perfect for B2B transactions, freelancers, and service providers.
QR Payments
Dynamic QR codes for instant point-of-sale payments. Custom branding, real-time push notifications, and payment history export.
Web API
RESTful API with webhook support for seamless e-commerce integration. Programmatic invoice generation, custom redirect flows, and IP whitelisting for maximum security.
Quick Example
POST /api/invoice { "amount": 1250, "currency": "FRECX", "network": "mainnet", "callback": "https://..." }
Four steps. That's it.
Create
Generate an invoice, QR code, or API request. Set amount in FRECX or display fiat equivalent.
Share
Send a payment link to your customer. They connect via Magic Link, WalletConnect, or MetaMask.
Pay
Customer confirms the transaction from their wallet. Real-time conversion shows exact FRECX amount.
Done
On-chain confirmation in seconds. You get a webhook callback + push notification instantly.
2
Networks
Mainnet & Testnet
3
Payment Channels
Invoice · QR · API
44+
Fiat Currencies
Real-time rates
<3s
Confirmation
Block finality
Everything under
one roof.
Connect any wallet.
Support for Magic Link, WalletConnect, MetaMask, and XDCPay. Customers choose their preferred method — FPAY handles the rest. Wallet signature verification and tKey threshold key management keep every session secure.
Your payments, at a glance.
A full merchant dashboard with transaction history, payment analytics, CSV exports, and multi-currency conversion. Filter by status, date, network, or amount. Track every FRECX payment in real time from creation to confirmation.
Never miss a payment.
Push notifications via Firebase Cloud Messaging, in-app alerts, and configurable email notifications. Get notified the instant a customer sends FRECX — whether it's an invoice payment, QR scan, or API transaction.
Show prices in 44+ currencies.
Real-time price conversion from FRECX to USD, EUR, GBP, AED, INR, and 39 more fiat currencies. Customers see the familiar fiat amount while paying in crypto — reducing friction and increasing conversion rates.
Non-custodial by design.
JWT authentication, API key management with IP whitelisting, wallet signature verification, and on-chain transaction validation. FPAY never holds your private keys — every payment goes directly to your wallet.
Works everywhere.
Fully responsive payment pages, QR scanning support on mobile browsers, and touch-optimized dashboard. Your customers can pay from any device, anywhere — the experience adapts automatically.
Built on Frequency Chain
FPAY runs exclusively on the FRECX network. One chain, zero complexity. Deploy on Testnet first, go live on Mainnet when ready.
FRECX Mainnet
Production environment for live payments and real FRECX transactions.
FRECX Testnet
Sandbox environment for testing payment integrations with free test tokens.
Five layers of protection.
FPAY is non-custodial by design. We never touch your private keys. Every layer — from authentication to on-chain validation — is built to keep your funds and data secure.
Non-Custodial
Your keys never leave your wallet
Authentication
JWT token-based auth
OAuth 2.0 integration
Session expiry handling
Magic Link email login
API Security
API key generation & rotation
IP address whitelisting
CORS policy enforcement
Rate limiting per key
Wallet Security
Wallet signature verification
tKey threshold management
Non-custodial architecture
Private key isolation
Transaction Security
On-chain validation
Block explorer verification
Double-spend protection
Tamper-proof receipts
Data Security
SSL/TLS encryption
MongoDB injection prevention
Input sanitization
File upload validation
Integrate in minutes.
A clean RESTful API with webhook callbacks, API key authentication, and a full Postman collection. Create invoices, QR payments, and web payments programmatically.
# Create an invoice
$ curl -X POST https://api.fpay.io/api/invoice \
-H "x-api-key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"amount": 1250,
"currency": "FRECX",
"network": "mainnet",
"successUrl": "https://yoursite.com/success",
"failureUrl": "https://yoursite.com/failure"
}'
# Response
{
"invoiceId": "INV-2024-0847",
"paymentUrl": "https://pay.fpay.io/inv/...",
"status": "pending",
"expiresAt": "2024-12-01T23:59:42Z"
}
Ready to accept
FRECX payments?
Set up your payment gateway in minutes. No setup fees, no monthly charges — just pay per transaction.