However in order to use the TypePad API the Twitter client must allow a custom Twitter API server URL to be entered like Tweetie 2 does.
The TypePad address to enter when adding the custom twitter URL is:
For those of you hosting your own blog using SixApart’s Movable Type, it appears that the Twitter-compatible APIs are not yet available for it. Hopefully in the future these APIs will also be brought to Movable Type.
As usage of Twitter and Twitter clients has become increasingly popular, blogging services have been looking for ways to integrate with the Twitter app ecosystem. Late last year WordPress added Twitter APIs to their own API offering.
I’m sure many of you will agree, after starting to tweet you may find yourself spending more time posting on twitter than your blog, leaving your personal blog somewhat neglected. Using the WordPress and TypePad Twitter-compatible APIs is a way to post with a familiar app not only to your blogs, but also to your Twitter accounts, so you don’t have to download yet another app.
Source: TypePad adds Twitter-compatible API (article in Japanese)