The minimum amount of crypto you can buy with every direct deposit is $50.
Keep in mind that if you set up a ‘rule’ to buy crypto from a percentage of your paycheck, and the percentage comes out to a dollar amount that’s less than $50, the order will not go through. For example, if you are trying to move 3% of your $1,500 direct deposit ($45 total) into Bitcoin, the order will not go through.