Aggregates (Per Second)
WS
Real-Time: wss://socket.polygon.io/crypto
Stream second-by-second aggregated OHLC (Open, High, Low, Close) and volume data for a specified cryptocurrency pair via WebSocket. These aggregates update continuously in Coordinated Universal Time (UTC). If no trades occur within a given minute, no bar is emitted, transparently indicating a period without trading activity. This endpoint provides a live feed of aggregated bars, enabling users to monitor intraday price movements, refine trading strategies, and power real-time crypto market visualizations.
Use Cases: Real-time monitoring, dynamic charting, intraday strategy development, market research.
Plan AccessIncluded in select Currencies plans
Plan RecencyReal-time
Plan HistoryNot applicable to websockets
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