Crypto payments

In this section we'll go through the endpoints you'll need to execute crypto payments on your website. You can make use of our hosted checkout experience or spin-off a custom UI.

Guidelines for checkout integration in Iframe

To provide the best user experience, we strongly recommend that you use the following dimensions when displaying our checkout:
  • Minimal dimensions for the checkout Iframe- height: 500px; width: 320px;
  • Optimal dimensions for the checkout Iframe - height: 650px; width: 450px;

Payment statuses

Status
Description
NEW
A payment has been created, however, no depositCurrency has been selected yet. (Screen 1 above)
PENDING
Customer has selected a depositCurrency and is presented with a cryptocurrency deposit address. Finrax listens for blockchain events on the particular wallet address.
AWAITING
This is an optional status. It will be skipped if the deposit is eligible for Instant Deposits. This status represents that we've "seen" a transfer on the blockchain, but is still in UNCONFIRMED status. Transaction has not been validated yet on the blockchain (Screen 4 above)
DEPOSITED
The transaction has been completed and your account balance has been updated. A callback notification is triggered to your designated endpoint.
EXPIRED
Once the expirationMinutes is reached and no deposit has been received against the supplied wallet address, the payment will be changed to status EXPIRED. Bear in mind that this is a tentative status. If we locate a blockchain transaction after the payment is changed to EXPIRED, we'll update the status from EXPIRED to DEPOSITED and trigger a callback notification.
BLOCKED
The transaction received against a given payment has been blocked due to compliance reasons. This usually happens if the origin of funds is marked as illicit (i.e. Darknet, Scam , etc.)
OVERPAID
Only present if the business has the overpayment logic active. The deposited amount exceeded the expected amount, starting the process of refunding.

Adding side chain support for deposits

To make use of deposits through side chains the payload of either the Request crypto payment or the Add payment details request should be changed, so that it includes the network field.
If the network field is not included in the request, then we'll use the default network for respective currency. Details for the supported deposit and default deposit networks can be found in the table below.

List of currencies and their supported deposit networks

Currency
Network
Default Network
USDC
Ethereum chain (ETH), Binance Smart Chain (BSC) and Tron Chain (TRX)
Ethereum chain (ETH)
ETH
Ethereum chain (ETH) and Binance Smart Chain (BSC)
Ethereum chain (ETH)
USDT
Ethereum chain (ETH), Binance Smart Chain (BSC) and Tron Chain (TRX)
Ethereum chain (ETH)
BTC
BTC
BTC
BCH
BCH
BCH
LTC
LTC
LTC
XRP
XRP
XRP
XLM
XLM
XLM
LINK
ETH
ETH