Channel Matrix
The ItPay PaaS Layer supports 13 payment channels spanning Asia's largest digital payment ecosystems. This page documents each channel's integration requirements, supported QR standards, settlement models, and operational complexity.
Note: The PaaS Layer is a managed service operated by ItPay Infrastructure Ltd. Direct integrations (no 服务商) are available for channels where ItPay holds the relevant licenses or operates under master merchant agreements.
Full Channel Matrix
| # | Channel | Country / Region | QR Standard | Integration Type | Settlement Currency | Fee Range | Complexity |
|---|---|---|---|---|---|---|---|
| 1 | WeChat Pay | 🇨🇳 China | WeChat QR (Payment Code) / Merchant QR | 服务商 (Indirect) | CNY | 0.2% ~ 0.6% | ⭐⭐⭐⭐ |
| 2 | WeChat Pay HK | 🇭🇰 Hong Kong | WeChat QR (same format) | Direct | HKD | 0.3% ~ 0.8% | ⭐⭐⭐ |
| 3 | Alipay | 🇨🇳 China | Alipay QR / Barcode | 服务商 (Indirect) | CNY | 0.2% ~ 0.55% | ⭐⭐⭐⭐ |
| 4 | AlipayHK | 🇭🇰 Hong Kong | AlipayHK QR (FPS-linked) | Direct | HKD | 0.3% ~ 0.7% | ⭐⭐⭐ |
| 5 | FPS (Faster Payment System) | 🇭🇰 Hong Kong | FPS QR (HKQR) | Direct | HKD | 0.0% ~ 0.25% | ⭐⭐ |
| 6 | PromptPay | 🇹🇭 Thailand | PromptPay QR (Thai QR Standard) | Direct (with agent) | THB | 0.0% ~ 1.0% | ⭐⭐ |
| 7 | PayNow | 🇸🇬 Singapore | SGQR (SGQR+PayNow) | Direct (with agent) | SGD | 0.0% ~ 0.5% | ⭐⭐ |
| 8 | DuitNow QR | 🇲🇾 Malaysia | DuitNow QR (DuitNow) | Direct (with agent) | MYR | 0.0% ~ 0.5% | ⭐⭐ |
| 9 | QRIS | 🇮🇩 Indonesia | QRIS (QR Code Indonesian Standard) | Direct (with PJP) | IDR | 0.0% ~ 0.7% | ⭐⭐⭐ |
| 10 | VietQR | 🇻🇳 Vietnam | VietQR (NAPAS Standard) | Direct (with partner) | VND | 0.3% ~ 1.0% | ⭐⭐⭐ |
| 11 | GCash | 🇵🇭 Philippines | GCash QR (local standard) | Direct (with partner) | PHP | 0.5% ~ 1.5% | ⭐⭐⭐ |
| 12 | InstaPay QR | 🇵🇭 Philippines | InstaPay QR (PESONet-linked) | Direct (with partner) | PHP | 0.3% ~ 0.8% | ⭐⭐⭐ |
| 13 | USDC / USDT | 🌐 Global | Wallet Address (Solana / TRC-20 / ERC-20) | Direct | USDC / USDT | 0.1% ~ 0.5% | ⭐ |
Complexity Ratings Explained
Each channel is rated on a 5-star scale indicating the operational and technical effort required to go live.
| Rating | Meaning | Typical Requirements |
|---|---|---|
| ⭐ | API Only — fully automated, no entity required | Public blockchain / open network |
| ⭐⭐ | API + Agent — API keys register with local agent | Bank-grade API, agent verification |
| ⭐⭐⭐ | Partner Integration — needs local partner with payment license | MOU / contract with licensed PSP |
| ⭐⭐⭐⭐ | 服务商 (Service Provider) Mode — requires master merchant setup | Merchant onboarding, settlement scheduling |
| ⭐⭐⭐⭐⭐ | License + Entity — requires in-country license or legal entity | Payment license, local registered entity |
Channel Integration Strategy
Direct Integration Channels
These channels are accessible via ItPay's own licensed entities or master merchant agreements. No third-party intermediary is required for routing:
| Channel | Integration Method | Notes |
|---|---|---|
| WeChat Pay HK | ItPay HK entity — direct API | Uses WeChat Pay's HK merchant API |
| AlipayHK | ItPay HK entity — direct API | FPS-linked AlipayHK merchant QR |
| FPS | ItPay HK entity — bank-integrated | Connects via HKICL's FPS API |
| PromptPay | Agent registration via local banks | ItPay acts as Payment Facilitator |
| PayNow | Agent registration via local banks | NETS SGQR API integration |
| DuitNow QR | Agent registration via local banks | PayNet API integration |
| USDC / USDT | On-chain wallet API (Solana, TRC-20, ERC-20) | No entity required |
服务商 (Service Provider) Mode Channels
These channels require a local licensed 服务商 (aggregator) to onboard sub-merchants and handle settlement:
| Channel | 服务商 Partner | Integration Notes |
|---|---|---|
| WeChat Pay | Licensed WeChat Pay 服务商 | ItPay sub-merchant under master merchant; WeChat official API |
| Alipay | Licensed Alipay 服务商 | ItPay sub-merchant under 服务商; Alipay ISV API |
Partner/Route-Through Channels
These channels require a local partner with a payment license in the respective country:
| Channel | Partner Type | Notes |
|---|---|---|
| QRIS | PJP (Penyelenggara Jasa Pembayaran) | ItPay routes through a licensed Indonesian PJP |
| VietQR | NAPAS member bank | ItPay routes through a Vietnamese NAPAS member |
| GCash | Licensed partner | ItPay routes through GCash's partner API |
| InstaPay QR | Licensed partner | ItPay routes through BSP-regulated partner |
Settlement Model Per Channel
| Channel | Settlement Cycle | Settlement Currency | FX Handling |
|---|---|---|---|
| WeChat Pay | T+1 (service provider → merchant) | CNY | 服务商 handles FX |
| WeChat Pay HK | T+1 (direct) | HKD | ItPay handles (HKD base) |
| Alipay | T+1 (service provider → merchant) | CNY | 服务商 handles FX |
| AlipayHK | T+1 (direct) | HKD | ItPay handles (HKD base) |
| FPS | Real-time to T+1 | HKD | ItPay handles (HKD base) |
| PromptPay | T+0 (real-time) | THB | Local agent handles THB→HKD |
| PayNow | T+0 (real-time) | SGD | Local agent handles SGD→HKD |
| DuitNow QR | T+1 | MYR | Local agent handles MYR→HKD |
| QRIS | T+1 | IDR | PJP handles IDR→HKD |
| VietQR | T+1 | VND | Partner handles VND→HKD |
| GCash | T+1 | PHP | Partner handles PHP→HKD |
| InstaPay QR | T+1 | PHP | Partner handles PHP→HKD |
| USDC/USDT | Real-time (on-chain) | USDC/USDT | ItPay handles (no FX needed) |
QR Standard Interoperability
The PaaS Layer normalises all QR formats into a unified ItPay QR structure, enabling cross-channel acceptance without modifying merchant-facing operations.
| Source QR | Normalised Output | Validation |
|---|---|---|
| WeChat QR | https://pay.itpay.io/qr/{charge_id} | CRC32 check + amount verify |
| Alipay QR | https://pay.itpay.io/qr/{charge_id} | Digital signature verify |
| FPS QR (HKQR) | https://pay.itpay.io/qr/{charge_id} | FPS proxy verify via HKICL |
| PromptPay QR | https://pay.itpay.io/qr/{charge_id} | Biller ID + amount verify |
| SGQR | https://pay.itpay.io/qr/{charge_id} | SGQR payload decode + verify |
| DuitNow QR | https://pay.itpay.io/qr/{charge_id} | PayNet proxy verify |
| QRIS | https://pay.itpay.io/qr/{charge_id} | NID + merchant verify |
| VietQR | https://pay.itpay.io/qr/{charge_id} | NAPAS proxy verify |
| GCash QR | https://pay.itpay.io/qr/{charge_id} | Partner proxy verify |
| InstaPay QR | https://pay.itpay.io/qr/{charge_id} | BSP-regulated verify |
| USDC/USDT | On-chain wallet address | Transaction confirm verify |
Summary
The channel matrix enables ItPay PaaS to accept payments from 1.8 billion+ digital wallet users across Asia. The integration strategy balances speed-to-market (direct for HK and crypto) with regulatory compliance (服务商 for mainland China, partners for ASEAN markets).