Content Management Interoperability Services (CMIS) is an open-source OASIS standard that enables applications to work with one or more content management systems by defining a standard domain model and standard set of services and protocol bindings for Web Services and AtomPub.
The CMIS Web Services bindings and RESTful AtomPub bindings are described in the OASIS CMIS specification.
Information about CMIS client APIs is provided by the vendors of the client APIs.