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MSN Spaces MetaWeblog API, version 1.00 is released which will let users to communicate with their spaces programmatically. More on this is on msdn. The API uses the XML-RPC protocol for communication between client applications and the Weblog server.

There can be many more service endpoints for many more blogging services and this API can be used for all of those which support XML-RPC based web service.

The service endpoint for MSN Spaces is https://storage.msn.com/storageservice/MetaWeblog.rpc

Any program or application can send XML-RPC requests to this service endpoint to communicate with the MSN Spaces servers.

The following methods are supported by the API:

• The metaWeblog.newPost Method posts a new entry to a blog.
• The metaWeblog.editPost Method edits an existing entry on a blog.
• The metaWeblog.getPost Method returns a specific entry from a blog.
• The metaWeblog.getCategories Method returns the list of categories that have been used in the blog.
• The metaWeblog.getRecentPosts Method returns the most recent draft and non-draft blog posts in descending order by publish date.
• The blogger.deletePost Method deletes a post from the blog.
• The blogger.getUsersBlogs Method returns information about the user's space.
• The blogger.getUserInfo Method returns basic user information, such as name, email address, and userid.

Here is a sample code in C# which uses XML-RPC.Net library and .Net Framework to communicate with MSN Spaces using MetaWeblog API.