MarsEdit is a Mac application for blogs. It has built-in MetaWeblog API integration. You can use MarsEdit to write and edit posts in your Typlog sites.
First, you need to enable XMLRPC for MetaWeblog API. Head over to Typlog Admin, turn on XMLRPC from the Settings → Integrations page.
When using MarsEdit, you will be asked for username and password. Instead of using your real password, Typlog requires an API token for XMLRPC.
You can create a new token in Typlog Account page.
When everything is ready, fill your blog's URL in MarsEdit:
Then MarsEdit will let you fill your username and password. Please note, fill your API token into the password field.
And your will see the final result: