Developer Toolkit
Integrate Free UPI Payments On Your Website
Accept peer-to-peer payments directly into your bank account with zero commission, zero onboarding fees, and no middleman. Generate interactive client-side embed widgets, payment buttons, and direct redirection deep-links instantly.
Widget Configurator
Customize your payment widget parameters and get instant embed code below.
<iframe
src="https://www.proupiqr.in/embed/?pa=merchant%40upi&pn=Kunal+Siyag&am=500&tn=Invoice+%231024&theme=287a57"
width="340"
height="480"
style="border:none; background:transparent; overflow:hidden;"
title="UPI Payment QR Widget"
></iframe>Live Sandbox Preview
Scanning this QR code from any standard UPI app (GPay, PhonePe, Paytm, BHIM) will request ₹500 to Kunal Siyag.
Redirection API & Query Parameters
If you want to generate payment QR codes dynamically inside your custom CRM, billing software, or ecommerce site, you can directly invoke our rendering endpoints by passing standard URL query parameters.
| Parameter | Type | Description | Example |
|---|---|---|---|
| pa | String (Required) | Your registered merchant/personal UPI Virtual Payment Address (VPA) | payee@bank |
| pn | String (Required) | The display name of the payee/business | John Store |
| am | Number (Optional) | Requested transaction amount. (Locks the amount field on scanning apps) | 250.50 |
| tn | String (Optional) | Transaction note or reference ID (shows up on the customer's payment statement) | Order-8390 |
| theme | String (Optional) | Custom hex color (without # prefix) to theme the payment widget button | ef4444 |
| logo | String (Optional) | Brand overlay logo. Options: phonepe, gpay, paytm, bhim | phonepe |
Redirection API Endpoint
Redirecting customers directly to their default payment app is ideal for mobile checkout screens. Use the base URL structure below:
https://www.proupiqr.in/r/?url=upi%3A%2F%2Fpay%3Fpa%3Dmerchant%40upi%26pn%3DKunal%2520Siyag%26am%3D250 Note: All spaces and special characters must be properly URL-encoded.
Zero commission explained
Unlike payment gateways that charge 2% to 3% transaction fees, our widget uses native UPI link protocols. Payments flow directly from the customer's bank app to your bank account over the NPCI network, entirely bypassing any third-party gateway processor.