Notification listener
A system-level listener catches incoming GCash payment notifications the moment they land.
Android payment gateway
Payment received.
Webhook sent.
NotifyPay turns a spare Android phone into a payment gateway. It reads e-wallet payment notifications and delivers them to your backend as structured, secure webhooks, with no merchant API needed.
- No provider API
- Offline queue
- API-key secured
9:41
G
GCash
You have received PHP 250.00 of GCash from +63 9•• ••• 4821.
NotifyPay gateway running
{
"source": "gcash",
"amount": 250.00,
"sender_masked": "+63 9•• ••• 4821",
"created_at": "2026-10-03T09:41:00.000Z"
}x-api-key: ••••••••
Features
Everything between “ding” and “order confirmed”.
Smart parsing
Amount, masked sender, mobile number and timestamp are extracted into clean fields.
Secure webhooks
Every payment is POSTed to your endpoint with an API key header your backend verifies.
Never loses a payment
Offline? Events queue on the device and retry automatically in the background.
Always on
A foreground service keeps the gateway alive, with a live log of everything it sent.
Drop-in receiver
A ready-made API route stores payments in Supabase and normalizes PH mobile numbers.
How it works
Live in three steps.
- 1
Install on a spare phone
Sign in to your e-wallet and grant NotifyPay notification access.
- 2
Point it at your API
Set your webhook URL and API key in the app.
- 3
Get paid, get notified
Each payment reaches your backend in seconds, ready to confirm orders.
Developers
One endpoint. Clean JSON.
Your backend receives a simple POST for every payment. Verify the API key, match the amount to an order, and you're done.
- Kotlin Android app (notification listener + WorkManager retries)
- Node.js receiver route with Supabase storage
- Philippine mobile number normalization built in
// verify + store a payment
export default async function handler(req, res) {
if (req.headers["x-api-key"] !== process.env.NOTIFYPAY_API_KEY)
return res.status(401).json({ error: "Unauthorized" });
const { source, amount, sender_masked, created_at } = req.body;
await db.payments.insert({ source, amount, sender_masked, created_at });
res.json({ ok: true });
}