there are loots of web api to do this,
like ubidots,thingspeek,xively etc
these are nice !
I want a private one.
open source at www.kaaproject.org - may be helpful, not sure!
It’s confusing. Lol
I just want a simple web api, and host it on a small server. E.g may be on a raspberry pi or a desktop.
You can install a private Blynk server, though I don’t know how that fits your other technical specs https://github.com/blynkkk