[jsondata]

I built essentially what you describe a while back (jsondata.io if you're interested, though the certificate has expired and I've turned off the actual service for now). The idea was to make an infinitely scalable (within reason) solution that works well as a pastebin-style, no-setup-required data store for hacking on projects, but also as something that can scale with the needs of a business.

The architecture is built on AWS Lambda and DynamoDB, along with a small Ruby Sinatra service to handle payments and access control.

After running it for a while and getting some limited feedback from potential users/customers, I ultimately abandoned the project due to an apparent lack of interest. For hobby projects, it's fairly easy to spin up a self-hosted data store for low volume needs (or use one of the other free services). For anything more than that, a business is probably going to spend the necessary time/money to maintain a full DBMS or use something like Firebase.

I might be missing an opportunity (I've had thoughts about resurrecting the project), but for the time being, I'm just not convinced there is enough demand on the paying side.

[sowbug]

Part of the fun of prototyping is setting up your own service; at least, I always find that part fun. That likely eliminates some of the target market.

If the service API were fully standardized, and users paid for their own database, and signing up for a new website meant that the user granted controlled DB access to the site, then that might be enough impetus for developers to use a provider of the service. Maybe it could follow a Dropbox model where the first N bytes/month are free per user, and service providers pay affiliate fees to sites that recruit lots of paying users.

See also Attic Labs (https://techcrunch.com/2018/01/08/salesforce-acquires-attic-...).