We had some nice generated api docs at http://zwiki.org/zwikidir/doc/doxygen/html/ and http://zwiki.org/zwikidir/doc/epydoc/ , these are currently missing.
Here are some useful methods on zwiki page objects:
edit -- change a page
create -- make a new page
comment -- add a comment
reparent -- change a page's position in the hierarchy
delete -- delete this page
renderLinksIn -- render links in a fragment of text
renderText -- render some wiki markup as for the specified page type
include -- include the body of another page
wikiUrl -- the url of this wiki
pageUrl -- the url of this page
setupCatalog -- set up/configure a catalog in this wiki
setupTracker -- set up/configure an issue tracker in this wiki
updatecontents -- ensure the page hierarchy is up-to-date
upgrade -- upgrade and re-render this page so that it's compliant with the latest code
upgradeId -- ensure this page's id follows Zwiki policy
upgradeAll -- upgrade and fix up everything in this wiki