The unAPI Server is a WordPress plug-in implementing the final version of the unAPI specification, ďa tiny HTTP API for the few basic operations neces
This is a glib answer, and a none-too-useful one at that. But you might hazard a peek at the following Ariadne article for more information: http://www.ariadne.ac.uk/issue48/chudnov-et-al/
I said machine-readable, right? Be glad; we've verified you're not a machine. :)
In order to see unAPI in action, you may install an unAPI client such as these Greasemonkey scripts:
If you'd like, you may validate your unAPI service by entering a post URL -- any regular WP post URL will do -- over at http://validator.unapi.info/
An unAPI identifier is typically composed of a prefix and an integer, but may be any string. Since WordPress already identifies individual posts with a locally unique integer, we only need to tack on a prefix. The default should work for you, but you can feel free to change it. Some folks prefer OAI-interoperable identifiers such as "oai:domain.tld:blogname:". Others opt for simplicity, such as the default prefix, "unleash.it:". Still others use valid URLs, such as "http://domain.tld/blog/archive/". It really is up to you; democracy, ho!
Oh, okay, why don't you send me an e-mail? Try leftwing at alumni rutgers edu. Patches welcome.