There's plenty of unofficial APIs for MySpace floating around but despite acknowledgement from MySpace management of Facebook's powerful interface and its popularity with developers and meek promises to counter with a similar move, we haven't seen anything yet... until now.   The web album services interface on http://media.myspace.com/services/media/albums.asmx gives a hint of a fuller API.  The following operations are supported for web albums:

To give you a taste and to have an archival excerpt in case the page disappears, the following is a sample SOAP 1.2 request and response for GetAlbumsSlideShow:
<pre>POST /services/media/albums.asmx HTTP/1.1
Host: media.myspace.com
Content-Type: application/soap+xml; charset=utf-8
Content-Length: <font class="value">length</font>

<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
<soap12:Body>
<GetAlbumsSlideShowResponse xmlns="http://myspace.com/services/media">
<GetAlbumsSlideShowResult>
<MiniAlbumSlideShow>
&lt;AlbumId&gt;<font class="value">int</font>&lt;/AlbumId&gt;
&lt;Hash&gt;<font class="value">string</font>&lt;/Hash&gt;
&lt;Title&gt;<font class="value">string</font>&lt;/Title&gt;
&lt;/MiniAlbumSlideShow&gt;
&lt;MiniAlbumSlideShow&gt;
&lt;AlbumId&gt;<font class="value">int</font>&lt;/AlbumId&gt;
&lt;Hash&gt;<font class="value">string</font>&lt;/Hash&gt;
&lt;Title&gt;<font class="value">string</font>&lt;/Title&gt;
&lt;/MiniAlbumSlideShow&gt;
&lt;/GetAlbumsSlideShowResult&gt;
&lt;/GetAlbumsSlideShowResponse&gt;
&lt;/soap12:Body&gt;
&lt;/soap12:Envelope&gt;</pre>

(via)