Creating Users

To create cards, you must first create a user. The Core API facilitates user creation through a single POST request, returning the end user's information and Know Your Customer (KYC) status. Please note that the KYC review process takes one business day.
Once the user's KYC is approved, their Infinity Account and cryptocurrency wallet will be automatically generated.

Creating Cards

Funding accounts
The user will have access to two wallets, each with its own balance. One is the Infinity account wallet, which holds the balance in fiat currency, and the other is the Crypto wallet, which holds the balance in cryptocurrencies.
Users can deposit cryptos from their own wallets into the Interlace custody crypto wallet, where the received crypto will be automatically converted to fiat at the real-time market price. Each user has a unique funding address.
The balances in both wallets can be easily checked using the Balance API.

Manage Cards
Next, let's create a card. When using it, be sure to safeguard your card number, cardholder name, expiry date, and CVV. To make online purchases, simply provide the necessary card information to the merchant.
Users can recharge the card according to their account balance and actual usage needs. Additionally, users have the flexbility to freeze or activate their cards whenever needed.