How many Polygon WebSocket connections can I use at one time?

Each account comes with access to one simultaneous WebSocket connection per cluster. This means that if you have our Stocks Developer package and our Currencies package, you will have access to one stocks WebSocket connection, one crypto WebSocket connection, and one forex WebSocket connection. You can connect to as many tickers/events as you want in a single WebSocket feed. For example, you could stream AAPL trades, GM Quotes, and F aggregates per minute in a single connection.
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Additional stock WebSocket connections may be purchased for $75/month/connection.