When you already hold USDC on another platform (e.g. exchange, non-connected wallet) and want to send USDC to Buzzing, crypto transaction is one of your choice.
User flow
On Buzzing, click Deposit and select Crypto → Direct Deposit.
You will see:
The unique USDC deposit address on Base
A QR code for the same address
On the external platform (e.g. exchange / wallet app): :
Chooses USDC
Selects Send / Transfer
Pastes the Buzzing deposit address or scans the QR code
Selects Base as the network
Confirms the transaction
Once the transaction is confirmed on-chain, Buzzing detects the deposit and updates the USDC balance.