# Use the MinnowMonsters trading bot
This bot will automatically buy and resell cheap cards to generate you a passive profit. It is still experimental so we cannot give any guarantees, but our users are very happy with it so far. The selling feature means to put cards up for sale, with alpha cards being a scarce resource the chances of price rising are high.
First you have to authorize @buildteam if you have not done that with your account:
https://steemconnect.com/authorize/@buildteam
Then you send a transfer to @minnowmarket with the following memo:
`{"action":"resell","modus":"bcx","settings":{"editions":{"beta":false},"limits":{"maxBcx":0.5,"max":1},"surcharge":{"alpha":1.30}}}`
A convenient steemconnect link is here:
https://steemconnect.com/sign/transfer?to=minnowmarket&amount=5.000%20SBD&memo=%7B%22action%22:%22resell%22,%22modus%22:%22bcx%22,%22settings%22:%7B%22editions%22:%7B%22beta%22:false%7D,%22limits%22:%7B%22maxBcx%22:0.5,%22max%22:1%7D,%22surcharge%22:%7B%22alpha%22:1.30%7D%7D%7D
Or use our editor: https://www.minnowbooster.net/monsters
And after a few minutes you will see that the bot did buy a few cards for your funds. Send as much as you like, the bot will handle all amounts in STEEM or SBD that you send it.
## Fees
This bot is free to use. It uses its own market, so we earn the 5% market fee that is mandatory for every steemmonsters trade. But we take no extra cut. So for you as a user, the experience is the same as trading in any other market.
## Settings
### action
Can be one of `buy` or `resell`, where buy will buy cards and resell will buy cards and put them up for save again.
### modus
Can be one of
* `cheapest`: buy the cheapest cards based upon historic prices
* `lowlevel`: same as `cheapest`, but only lvl 1 cards
* `bcx`: buy the cheapest cards by usd per bcx
* `usd`: buy the cheapest cards by usd
### settings
#### editions
for both `alpha` and `beta` you can set it true or false to indicate if you want to buy cards of that edition.
#### surcharge
for both `alpha` and `beta` you can set a specific surcharge, 1.3 means to add 30% extra price to the by price for selling it afterwards, giving you about 25% profit after the market fees.
#### limits
For these four:
* `min`: Don't buy cards cheaper than this in usd
* `max`: Don't buy cards more expensive than this in usd
* `minBcx`: Don't buy cards cheaper than this in usd per bcx
* `maxBcx`: Don't buy cards more expensive than this in usd per bcx
## BCX
The metric BCX means the amount of cards that were used to get to this card. If you have a card that is 4 cards combined, it has 4 BCX, if it costs 60 cents, the usd per bcx is 15 cents. This makes comparisons between level 1 and higher level cards easier and allows you to snipe the really good deals.