Is the TWS API compatible with delayed data?

A paid market data subscription is typically required to receive real time (live) market data via the API offerings. Once subscribed to the appropriate package, real time data is available via the TWS API in the following ways:

• Top of Book (Level 1) Streaming Data…

Historical market data is available via a number of methods through our API offerings. The TWS API allows one to request historical bar data, historical tick data and histogram data, while the Web API allows one to request historical bar data.

For detailed documentation of this functionality and the associated limitations, please see:…

The TWS API and Web API provide functionality to request the details of an option chain.

To retrieve historical options chain data for a stock symbol like AES using the IBKR TWS API in Python, follow these steps:…

No. Delayed market data is available from recent versions of the TWS API, but is incompatible with NinjaTrader specifically because the functionality required to request and display delayed data has not been implemented within the NinjaTrader platform. To receive data from IBKR in NinjaTrader, it's necessary to have market data subscriptions enabled in the Client Portal…