To add cryptocurrency exchange symbols in the TradingView charting library, you need to integrate the symbols through the TradingView API. First, ensure your exchange data source supports the TradingView format for tickers. Then, use the symbols option in the TradingView chart widget to load the required cryptocurrency symbols. The symbols should be in the format that TradingView recognizes, such as "BTCUSD" for Bitcoin/US Dollar pairs. As part of Cryptocurrency Exchange Development, it’s crucial to ensure that your backend system is well-connected to the data provider and handles real-time updates efficiently to display accurate charting data for users.