Twitter clone with API similar to Twitter?

Question

As we all know, Twitter consistently has problems keeping their service up and running.

There are literally dozens of Twitter clones out there. Does anybody know of a Twitter clone with an API that is as similar as possible to Twitter's API as possible?

Thank you.

Answer 1

identi.ca (http://identi.ca) is twitter clone based in the opensource status.net (http://status.net) solution with a twitter compatible API: http://status.net/wiki/API

Answer 2

Take a look at identi.ca:

http://status.net/wiki/TwitterCompatibleAPI