Is an open source non-relational, distributed database service that requires zero-configuration.
Apache CouchDB is a document-oriented database that can be queried and indexed in a MapReduce fashion
"Due to many improvements to couchdb and that cloudant has more features than vanilla couchdb my suggestion would be to use a c++ http library to communicate with cloudant"
from question "Libraries for Couchdb in C++?"
"Regarding cloudant it s more or less just couchdb so to connect you can use these libraries from the couchdb wiki"
from question "CloudBees Runtime Classpath"