The complete reference of the REST API resources can be found in the specifications: https://github.com/ezsystems/ezpublish-kernel/blob/master/doc/specifications/rest/REST-API-V2.rst. This That file is actually more up-to-date than this documentation, as it is used as a development spec / reference. One problem is that it references the whole API, which isn't actually completely implemented. Some resources are still being worked on, but you should have most of what you need.
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