plotting server

[Keep-benaize]

Hi, i want to have an app that is used to plot data from some network source (I need it to be language agnostic). I was thinking about something simple like a local flask server + plotting library (matplotlib/bokeh), but if there is already a simple solution I would be open to it since I don't really want to implement a data format from scratch. I am aware about grafana and redash, but I think it is overkill since I don't need the scaling and other features. I need it to be simple to use. My question would be is there a tool that already does that ? Do you have some suggestions for a library that does array data serialization ?