There are 3 repositories under iqfeed topic.
C++ 17 based library (with sample applications) for testing equities, futures, etfs & options based automated trading ideas using DTN IQFeed real time data feed and Interactive Brokers (IB TWS API) for trade execution. Some support for Alpaca & Phemex. Notifications via Telegram [irc: Libra #tradeframe ]
IQFeed.CSharpApiClient is fastest and the most well-designed C# DTN IQFeed socket API connector available
Dockerized IQFeed client with X11VNC for remote viewing
A Java API for the high quality, market-data-vendor "DTN IQFeed" https://iqfeed.net
IQFeed Historical Data