A common problem when setting up a TypePad blog is entering the wrong password. TypePad is unusual in that it requires a separate, web services password when logging in from an application such as MarsEdit. To locate the password, log in to your TypePad administration panel on the web, and look inside your user settings.
At this writing, the API Endpoint URL for TypePad sites is: http://www.typepad.com/services/xmlrpc
For instance, if the URL looks like this:
http://example.com/mt/mt.cgi?__mode=menu&blog_id=6
Then the Blog ID is 6, the number immediately following the blog_id=
part.