How TF2 key trading works
A practical guide to buying and selling Mann Co. Supply Crate Keys.
Choose which way to trade
A Mann Co. Supply Crate Key is a TF2 item transferred through a Steam trade offer. When buying, you pay the shop in USDT and receive keys. When selling, you send keys to the shop and receive USDT after the transfer is verified.
Sign in with Steam or Telegram. For the trade itself, provide the Trade URL of the intended Steam account; it can differ from your sign-in account. Check the identified profile and key quantity before confirming.
Buying: from a quote to keys in Steam
For example, to buy several keys for your Steam inventory, open the buy page, add the recipient’s Trade URL and choose a quantity. Available quantity depends on inventory. Select a payment network and wait for the calculated total.
- Check the recipient, quantity, cost and quote expiry. Confirming creates an order with payment instructions.
- Copy the USDT address and exact amount from that order. Pay on the specified network before the invoice deadline.
- After payment is confirmed, open the trade offer from your order. Check the keys and quantity, then accept it in Steam and complete any confirmations Steam requests.
Why the exact payment amount matters
The cost of the keys and the invoice amount may differ. Use the amount due from the created order, including all six decimal places. Do not replace it with a rounded headline price or an amount from an older order.
Check that your wallet’s fee will not reduce the amount received by the shop’s address. A different amount, network or payment after the deadline may require review. If you have already made a mistake, open support for the existing order and provide its ID and the transaction hash. Do not make another payment to try to correct it by guesswork.
Selling: key verification and your net payout
To sell keys from your inventory, open the sell page and provide the Trade URL of the account holding them. Once it is checked, choose an available quantity, a payout network and a wallet address that accepts USDT on that network.
- Compare the key value, fee and amount you will receive. The amount after the fee becomes the payout condition in your order.
- After confirming the order, open the trade offer. Check the items and number of keys you are sending, then confirm the exchange in Steam.
- Wait for the shop to receive and verify the keys. Follow the payout and its transaction in the same order.
USDT on TON, BSC and TRON
The site uses TON / Jetton USDT, BSC / BEP-20 USDT and TRON / TRC20 USDT. They share the USDT name but run on different networks. Your wallet or exchange must support the network in your order; sending TON, BNB or TRX instead of USDT does not pay a USDT invoice.
The networks available for payments and payouts can differ. Compare availability and the final terms in the form. A network’s native coin used for your wallet fee is separate from the USDT amount. Take the address, amount and network from your current order.
If an order status takes time to change
A detected payment still needs network confirmations. Preparing a Steam offer and verifying the item transfer are separate stages that follow. Timing depends on the network, Steam and order processing; this guide does not give a fixed completion time.
Open the existing order in your history and check whether Steam needs an action from you. Refresh its status if an update is delayed. If it requests review or processing does not continue, contact support for that order with its ID and, for a payment, the transaction hash. Do not create a duplicate order or send money or keys a second time.