Bitget API

1.1 Log in to your Bitget account, then go to the API management page in your user center.
1.2 Select Create API key.
1.3 Create your notes and passphrase, configure your permissions settings, then fill in your IP address. Verify your account, then select Next.

Using the API is free.

WebSocket is a better choice if you need real-time market trends and data updates, such as price movements and volume. WebSocket is a message-based protocol that provides more efficient data transfer with lower latency than the REST API. The REST API is a better choice if you only need to occasionally check on market data, such as historical trades and candlestick chart data. It is based on the HTTP protocol and features a wide range of applications. It is also a better choice for developing automated trading programs.

Yes it is. The symbol must be in uppercase.