A simple, self-contained, serverless, zero-configuration, json document store.
Sits in front of S3 or Minio, lets you use it as a key/value datastore. Sort of like Redis, but with HTTP.
An HTTP server that sits between Redis and whatever clients you have and implements a REST API for the Redis protocol. Can even be used to upload and store files using PUT requests. Defaults to JSON but can return other data formats by adding an extension (.json, .txt, and so forth). JSON objects stored are single items. Also implements pubsub and WebSockets. Implemented in C.
A general-purpose JSON datastore which you can use as the back-end for different kinds of applications. Think of it as a lightweight document-based database. Used by Mozilla for synchronization.
Online documentation here: https://kinto.readthedocs.io/en/stable/index.html
This might be the JSON datastore I've been looking for.