steam add fun below $5

o.O I doubt about it, if it was true, it would be horrible exploited

I think it was any number "above" $5 not below. Here, just change that "500" to anything above.

Your friend puts something cheap on market for 5 dollars or less (however much he wants), nobody will buy it since its overpriced, so you search for it, buy it, and ta-da he has $5 or however much he made it. Then you could just trade the item back.

there is a javascript command to add a custom amount of funds, but it hast to be above 5$/€/whatever
go to http://store.steampowered.com/steamaccount/addfunds/ and enter this in your urlbar or javascript Console and press enter: javascript:submitAddFunds( amount );

this for example will add 13,50$
javascript:submitAddFunds( 1350 );

People are missing what is asked here:

The OP asks to add funds to his wallet for an amount lower then $5,00 (which is the minimum for steam)
The answer is no.

The javascript posted works perfectly, you can add any custom amount above $5,00 with it.
Not for free, you're still paying for it. It's just that you choose what amount gets added (you can add $6,66 if you like. Rather then either $5,00 or $10,00)

I am using Visa Virtual and i can add any amount of money on my Steam Wallet.

My add funds page. My store transactions page.

Uh, i dunno why it hasn't been mentioned by anyone, but i usually just buy an x amount of TF2 keys ($1.85) with paypal on steamtrades, and sell them on the market, and since their worth on the market is about $2.2 you don't lose money on the fees.