[trexen]

Where do you plan to access it from? Do you mean server or cloud software? Have you searched google - there are large numbers of such applications.

Question has too little context, what is your interest, to build applications with it, or build it? On what platform?

[pcmaffey]

Yeah, a public API anyone can sign up for, get a token, and call from anywhere to store key/value data, without needing to setup a server/database. Basically like Web Storage API, but saved in the cloud instead of locally, so that it persists.

I wasn't able to find anything that exists like this (if you know of any, please share). My interest is in using it, but if it doesn't exist, I wonder about building it as a service.

[AznHisoka]

that is Amazon S3 in a nutshell.