Accept USDT ERC-20 for online stores
Add a “Pay with crypto” button: your store creates a payment via the API, the customer pays on a ready-made page, and the order status updates via webhook.
How well USDT ERC-20 fits online stores
Good fit · Fit 58%A good option next to your main coin.
Pros
- A stablecoin pegged to the dollar: your revenue does not depend on the exchange rate.
Keep in mind
- The network fee is noticeable: for small orders add a cheaper network to the checkout, such as BEP-20, TON or Solana.
- Network
- Ethereum
- Standard
- ERC-20
- Coins
- USDT, USDC, ETH
- Best for
- orders from a few hundred dollars
Order ↔ payment
Pass your order number in orderId — it comes back in every webhook.
Prices in dollars
Set the amount in USD — it’s converted to the chosen coin at a locked rate.
USDC and USDT
The two main stablecoins on one network — customers pay with whatever they have.
A typical integration takes an evening: one request to create a payment at checkout and a webhook handler that marks the order as “Paid”. Repeating the request with the same Idempotency-Key won’t create a second payment, even if the customer clicks the button twice.
Network fees on Ethereum are higher than on TRON or BSC, so it makes sense to offer ERC-20 for large payments and B2B invoices, with alternatives on other networks for small orders. One payment page can show several options.
Recommended coin set for online stores
To cover most customers, enable on the checkout page: USDT TRC-20, USDT BEP-20, USDT on TON. The customer picks the network, and every payment lands on one project balance.
One request to create a payment
The response contains the address, the exact amount and a link to a ready-made payment page. Status updates arrive via HMAC-signed webhooks.
curl https://api.moonvex.org/v1/payments \ -H "Authorization: Bearer $MOONVEX_SECRET_KEY" \ -H "Idempotency-Key: $(uuidgen)" \ -d '{"orderId":"order-1001","amount":"49","currency":"USDC","network":"ETHEREUM"}'
FAQ
Which currency should the price be in when customers pay in USDT ERC-20?
USDT ERC-20 is pegged to the dollar, so you can set the price in the coin or in USD; the amounts are nearly the same.
Is there a plugin for WooCommerce, OpenCart or Tilda?
Ready-made plugins are in development. For now you connect via the REST API or the Node.js SDK; on any platform with webhooks it’s a few dozen lines of code.
Who pays the network fee?
The sender pays the transfer fee, as with any wallet. The service covers fund sweeps and gas for payouts.
What if the customer doesn’t pay in full?
The customer has a window to top up. You’ll receive a webhook with the status and the actual amount.
What address will the customer get?
A separate 0x… address per payment, or a permanent deposit address per customer.
Other coins for online stores
USDT ERC-20 for other use cases
Compare USDT ERC-20 with others
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