This shortcode will return the same output information as the WordPress function get_bloginfo(‘url’):
the Blog address (URI) is the URL for your blog’s web site address and is set in Administration ? Settings ? General. This data is retrieved from the home record in the wp_options table.
This shortcode does NOT supports conditional branching with [ELSE_blog_url].
Shortcode nesting is NOT supported.
There is no API function equivalent for this shortcode.