PayWarden is a self-hosted, non-custodial crypto payment gateway for cross-border digital business. Customers pay in USDT on TRON. Payments land in your wallet, your backend gets a signed webhook, and nobody else ever holds your keys.
order_created
Order for 99.00 USDT, unique address assigned
payment_detected
Transfer seen on TRON, tx 7c1e…a90b
payment_confirmed
Amount matched after 19 confirmations
webhook_sent
Signed webhook delivered, order completed
sweep_queued
Funds queued for your cold wallet
Paid. No one but you touched the funds.
Today
With PayWarden
TodaySomeone watches a block explorer and confirms payments by hand.
With PayWardenEach order gets its own address. Payments are detected and confirmed automatically.
TodayA Telegram bot pings the team. Customers wait until someone replies.
With PayWardenYour backend gets a signed webhook the moment a payment is confirmed.
TodayMonth-end reconciliation in a spreadsheet, row by row.
With PayWardenEvery order keeps a full event history, matched to its on-chain transaction.
TodayA hosted gateway holds your balance and can freeze it.
With PayWardenFunds go straight to addresses you control. Sweeps go to your own cold wallet.
Your backend calls the API with an amount and a callback URL. PayWarden returns a unique TRON address for that order.
They send USDT from any wallet or exchange. No account, no browser extension, no card.
It watches the chain, matches the transfer to the order, and waits for the block to be final.
A signed webhook hits your server. Every retry carries the same idempotency key, so you can safely deduplicate.
Optional automatic sweeps send collected USDT to the cold wallet you choose.
A REST API with an API key, and a webhook you verify in a few lines. If you have wired up a card processor before, this will feel familiar.
PayWardencurl -X POST https://pay.example.com/api/v1/payments \
-H "X-API-Key: $PAYWARDEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"external_id": "order_123",
"amount": "99.00",
"callback_url": "https://shop.example.com/webhooks/paywarden"
}'import { createHmac, timingSafeEqual } from 'node:crypto';
// sig = X-Signature header, key = your webhook secret
export function verify(body: string, sig: string, key: string) {
const hmac = createHmac('sha256', key).update(body);
const expected = 'sha256=' + hmac.digest('hex');
const a = Buffer.from(sig);
const b = Buffer.from(expected);
return a.length === b.length && timingSafeEqual(a, b);
}Full reference: Payments API and Webhooks.
Early access
The full gateway on your own server. One docker compose up starts PostgreSQL, Redis, the API, checkout pages and an admin dashboard. Licensed under BSL 1.1, with no per-transaction fees. The source isn’t public yet, so message us for early access.
In development, not yet available
A hosted version for teams that don’t want to run servers. Its non-custodial architecture is still being built, so the guarantees on this page apply to the self-hosted edition only. Message us to join the waitlist.
Join the Cloud waitlist