Thanks for your reply Mark
Actually i am more interested to know that is there any API difference in Sharepoint Saas and on-primise version.
Hi can you add some more clarity to your question? What list do you need (Server or Client) and it also helps if you explain why.
I assume that you are referring to the client object model – these could be viewed as SharePoint APIs allowing third party applications to communicate with SharePoint or use them within SharePoint web parts (these could be viewed as controls / widgets if you are coming from a different background).
You can find this useful: http://msdn.microsoft.com/en-us/library/office/fp179912%28v=office.15%29.aspx