NoSQL databases that officially support MonoTouch

I am having trouble finding a NoSQL databases that officially support MonoTouch via a local DB on the device. If their are, could someone provide a list of them here.

Is MongoDB a NoSQL database?

NoSQL databases come in a variety of types including document databases, key-values databases, wide-column stores, and graph databases. MongoDB is the world's most popular NoSQL database.

What is the name of the fully managed service model that many NoSQL databases now leverage?

Oracle NoSQL Database Cloud Service is now a fully managed database service running on Gen 2 Oracle Cloud Infrastructure hardware.

According to http://nosql-database.org/ there's siaqodb. Note that others might support MonoTouch without being mentioned in that site.

Edit: a few more clicks shows that HSS Database (from the same list) also supports MonoTouch.

You might also want to look at which ones support iOS (e.g. with Objective C) and see if bindings are available (or write your own).