How to Sell Optimism (OP) for Tether (USDT) in Portugal

To sell Optimism for Tether in Portugal, first, find a cryptocurrency exchange that supports the OP/USDT trading pair. Create an account, verify your identity, and deposit your OP into your exchange wallet. Locate the OP/USDT pair on the trading platform and place a sell order to exchange your Optimism for Tether. If the OP/USDT pair is unavailable, you can first sell Optimism for a stablecoin like USDC (USDC) or a fiat currency such as the Euro, then trade that for Tether. Be mindful of potential exchange fees, which vary by platform and can affect the total amount you receive.