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 minimum dimensions when displaying our checkout:

• Height: 640px

• Width: 320px

Our checkout uses the clipboard API to allow users to easily copy the Amounts, Addresses and Transaction ID that are displayed on the screen. This action might be prevented by Chrome and other browsers, so to allow the copying of text with a single button simply add the allow="clipboard-write" property to your <iframe> tag.

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 that is only applicable to UTXO deposits. It 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.
UNPROCESSABLE	This status is related to the following 2 events: The deposit received was below the minimum deposit amount, so it will not be processed nor credited to the business. This status will not trigger a callback notification. The deposit was received for an UNPROCESSABLE currency. Currently the only such currency is USDT. The support for it was discontinued for all EU based organisations.

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.

List of currencies and their supported deposit networks

Currency	Supported Networks
USDC	Ethereum chain (ETH), Binance Smart Chain (BSC) and Solana network (SOL)
ETH	Ethereum chain (ETH) and Binance Smart Chain (BSC)
SOL	SOL
BTC	BTC
BCH	BCH
LTC	LTC
XRP	XRP
XLM	XLM
LINK	ETH