This is non-official. It's my own attempt at documenting Fedora's REST API in a resource-oriented (vs method-oriented) way.
Resource: objects
The collection of objects stored in the repository.
Example URL: http://localhost:8080/fedora/objects
GET
Without parameters
Presents a simple HTML search form for finding objects in the repository.
With "terms" or "query" parameter
Starts a search.
With "sessionToken" parameter
Gets the next page of search results.