Put an end to losses
from fake transaction IDs.
MASTER PAY authenticates every wallet, bank, or UPI payment by reconciling the customer's transaction ID with the genuine SMS delivered to your registered Android device. No payment gateway, no KYC, and no per-transaction charges — simply reliable verification you can trust, anywhere in the world.
Clara Monroe
04/29CVV
645
under 2 seconds
<2s Typical verification speed
99.9% Transaction-ID match precision
0 Charges per transaction
Monthly verification capacity
From sign-up to a verified order in two minutes
No complicated onboarding, no PCI requirements, and no weeks spent waiting on gateway approval.
- 01
Create your account
Set up your merchant profile and receive your API Key and Device Auth Key right away.
- 02
Install the application
Download the MASTER PAY APK onto your store's phone, paste in the Device Auth Key, and you're set.
- 03
Connect the API
Add a single API call to your checkout. Compatible with PHP, Node, Python — anything that can send a POST request.
- 04
Verify hands-free
The customer submits a transaction ID, the app reads the SMS, the order is confirmed in seconds, and you dispatch.
Every forged transaction ID is an order shipped for free.
Buyers reuse screenshots of old payments, enter invented transaction IDs, or remit less than the order value. By the time your team has verified the SMS by hand, the parcel is already packed and on its way out the door.
- · Checking each SMS by hand takes 5–10 minutes per order
- · Fraudulent orders slip through outside business hours
- · Delays frustrate buyers, abandon carts, and cost you sales
- · Conventional gateways deduct 2–3% on every transaction
MASTER PAY, summed up in one line:
Your customer enters a transaction ID, and we cross-check it against the genuine SMS on the device you control. The order is approved — or declined — in under two seconds.
Engineered for merchants who can't afford to wait
Everything you need to retire manual verification — and nothing you don’t.
Verification in under two seconds
Built on FCM push and Socket.IO in real time, so customers barely notice a loading indicator.
Tamper-resistant matching
We reconcile the transaction ID, amount, and customer number together — forged screenshots simply don't qualify.
A single API call
POST /verify-payment is the entire integration, and it works with any backend you run.
Real-time dashboard
Follow every verification, match, and mismatch as it happens, with built-in filtering and export.
Compatible with any wallet, anywhere
Mobile wallets, bank transfers, UPI, and neobank apps — any service that issues a transaction SMS, in any country.
Your device, your data
Messages never leave your device unless they match, and your inbox is never stored on our servers.
Wherever wallet payments are accepted
If your team still verifies SMS messages by hand in WhatsApp groups, this was built for you.
Confirm payment before anything leaves the warehouse
Fulfil only the orders that were genuinely paid, and cut returns from fraudulent purchases to almost nothing.
Grant access the instant payment clears
Course enrolment, game top-ups, and subscription credits are released automatically the moment the SMS arrives.
Dispatch riders only once payment is confirmed
Stop assigning riders to orders that were never actually paid for.
Clear answers, fast
Still have questions? Reach out and we usually reply within a few hours.
Does MASTER PAY hold or process my customers' funds?
No. We provide verification only. Customers pay you directly through their own wallet, and we simply confirm that the payment arrived by reading the SMS on your device.
What kind of phone do I need?
Any Android device running version 7 or later that receives the wallet SMS. It only needs to stay online — over Wi-Fi or mobile data, whichever you prefer.
What happens if my phone goes offline?
Pending verifications are queued and run automatically the moment your device reconnects. For high-volume merchants, we recommend keeping a backup device on hand.
Could someone fool the system with a fake screenshot?
No. Screenshots are never examined. We match the transaction ID the customer submits against the authentic SMS the wallet provider sent to your phone.
How do I add it to my website?
A single API call — POST /verify-payment with the transaction ID, amount, customer number, and your order ID. It works with PHP, Node, Python, Laravel, WooCommerce, and more.
Is there a charge for each verification?
Our early-access plan carries no per-transaction fees. Subscription pricing will follow later, with preferential rates locked in for early adopters.
Stop footing the bill for fraud
you can prevent.
Open a merchant account in about a minute. Your API Key and Device Auth Key will be ready on the very next screen.