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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
I wouldn't call it a regular/normal thing at all but it's very possible. Twitch does have an API that lets users connect their bots and there are many livestream Closed Captioning tools that can transcribe livestreams to text in real time.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.