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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 briefly checked its code - wrapping it for reasonably convenient use with Arduino IDE would be not that simple. USB is quite abstract protocol and a particular device type requires a matching handler code. You can find example for keyboard HID here: https://github.com/abcminiuser/lufa/tree/master/Demos/Device/ClassDriver/Keyboard - as you can see, there is not so small amount of code for handling it: even though all really hard work is done inside the library, you still need to make a lot of proper calls to make it work.
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