Kohana_couchdb_client is a project mainly written in PHP, it's free.
Provides a simple API for working with CouchDB databases
Kohana CouchDB Client hopes to provide a simple API for working with Apache CouchDB from the Kohana PHP web framework.
This project is currently being developed against:
This project aims to closely follow the same general spirit of the Kohana framework itself as regards code organization, in-line documentation, and code formatting. To this end, suggestions are welcome.