Bank Account Balances: Available Balance vs Current posted balances

The API grabs the Current posted balances, it would be very nice to have the API grab Available Balance. Not sure if this is just my account. I am using Wells Fargo (www.wellsfargo.com). The Balance column grabs the Current posted balance, for this API to be useful I need to see Available balance to budget the day and week.
Available balance = Current Posted Balance - Pending Transactions
Available Balance display on the Top of the screen and at the Bottom of the Account Dashboard when user is logged in to Wells Fargo account. This balance is what I need to capture daily to see the exact amount of funds available in the account.

Thanks for posting, @jaysidd!