Get paid in USDT.
Keep your keys.
A stablecoin payment gateway that settles directly to your wallets on 11 networks. Hosted checkout, signed callbacks and an API your existing NTPAY integration already speaks.
- 0%
- Custody
- 0.5%
- Fees from
- 11
- Networks
Northwind Store
Order #4821
Amount due
Send the exact amount, including decimals.
Deposit address
Everything you need to accept stablecoins
Built around one principle: the money is yours from the very first block confirmation.
Non-custodial by design
Buyers pay straight into the wallets you add. Cradex never touches the funds, so there is nothing to withdraw and nothing to freeze.
Fair per-network pricing
A small percentage per completed invoice, set per network, charged to your prepaid USD balance. No monthly fee, no setup fee.
Checkout with your brand
Your logo and brand colour on a fast, mobile-first payment page with QR codes, exact-amount guidance and live countdown.
Signed callbacks
NTPAY-style callback plus X-Cradex-Signature (HMAC-SHA256). Failed deliveries retry 8 times over 12 hours, with a full log.
Payment links
No website? Create an invoice from the dashboard and share the link over chat or email in seconds.
Multiple merchants
Run several stores from one account, each with its own API keys, webhook secret, wallets and invoice lifetime.
Buyer → your wallet. That's it.
Cradex sits beside the payment, not in the middle of it. We watch the chain, match the exact amount and notify your server.
Buyer pays
Scans the QR on your branded checkout and sends the exact USDT amount on their preferred network.
Your wallet receives
Funds arrive directly at the address you configured. No intermediate account, no payout delay.
Cradex confirms
We detect the transfer, mark the invoice completed, send a signed callback and deduct the fee from your balance.
Your NTPAY code already works
Same endpoints, same parameters, same callback fields. Point your integration at Cradex, paste new credentials and you're done.
WooCommerce
WordPress plugin with order status sync.
WHMCS
Gateway module for hosting billing.
HostBill
POST callback mode supported out of the box.
Custom
Any stack via two HTTP endpoints.
curl -X POST https://cradex.net/api/AddInvoice \
-d merchant_id=YOUR_MERCHANT_ID \
-d api_key=YOUR_API_KEY \
-d name="Order #4821" \
-d description="Pro plan, 12 months" \
-d amount=249 \
-d request_id=ORDER_4821 \
-d callback_url=https://shop.example/webhooks/cradexFrom sign-up to first payment
A light business review keeps the network safe for everyone. Most merchants go live the same week.
- 01
Create an account
Register and choose Business, or upgrade an existing Personal account any time.
- 02
Submit your profile
Tell us about your company, website and expected volume. It takes about two minutes.
- 03
Get approved
Our team reviews applications quickly, usually within one business day.
- 04
Add merchant & wallets
Create a merchant, add receiving addresses per network and copy your API credentials.
- 05
Integrate & go live
Use the API, a plugin or payment links. Top up your balance to cover gateway fees.
Ready to take your first USDT payment?
Create a business account for free. Need higher volume pricing or a custom integration? Our team is happy to help.