Access & modify classic Google Sites content programmatically.

Deprecated: Sites API is deprecated and might stop working at any time. Sites API can only access classic Sites. Sites API can't access the rebuilt version of Sites that was launched on November 22, 2016.
Create new sites or copy existing sites
Retrieve, create, modify, and delete pages, attachments, and other content.
Upload and download attachments and files.
Modify sharing permissions across a site
Review the revision history across the site.