Each purchase directly reduces your available spending limit. The way each purchase impacts your spending limit is defined not only by the amount but also by the "Pay mode" you are using.
If you have configured "Pay in full" in the Pay mode section, your purchases will be deducted from your USDC balance. This means every time you make a transaction, the amount spent is immediately subtracted from your existing USDC funds, lowering your available balance accordingly.
If your USDC balance isn't sufficient to cover the entire transaction, other assets in your wallet—such as ETH or wBTC—can be used directly for payments. You can easily manage or select your preferred asset for payments within the card section.
You can always view your current spending limit and asset balances directly from the app, giving you clear and real-time control over your available funds.
If you have the pay mode configured to make your purchases with installments your spending limit will depend mainly on the type of assets deposited in your Exa App wallet and the amount of each.
We associate a Risk-Adjust Factor to each asset to assess each collateral asset's borrowing and lending power. That's why your spending limit in USD depends not only on the value in USD in your wallet but also on which assets compose the wallet.
Asset deposited--> | WETH | USDC | WBTC | wstETH | OP |
The amount of USDC you can borrow with $1 of each asset | $0.78 | $0.83 | $0.71 | $0.75 | $0.32 |
For example, if you:
Deposited $100 in WETH --> Credit Card borrow limit USDC 78
Deposited $100 in USDC ---> Credit Card borrow limit USDC 83
Deposited $100 in WBTC ---> Credit Card borrow limit USDC 71
Deposited $100 in wstETH ---> Credit Card borrow limit USDC 75
Deposited $100 in OP ---> Credit Card borrow limit USDC 32
The most likely scenario is that you have deposited more than one asset, so your credit limit will be calculated as a weighted sum, considering the risk factor of each asset and the amount you have deposited in your Exa Wallet.
If you want more information about calculating the credit limit and interest, please refer to our Math Paper.