Ask HN: Multi-tenanted database that is shareable and embeddable?

I have struck a boulder here and I can't seem to find the right word to describe it. Basically, users sign up on "the site", uploads data onto it, and generates a javascript tag which will fetch the data he/she uploaded on "the site". The user will then put the <script type="text/javascript src="https://thesite.com/user/23423/share.js"> theSite.insertTo('#dataView'); </script> <div id="dataView"></div> into their website which will generate an html table into the div of their choice. I have no idea if there are services like this. Does google Docs have anything like this?