CiviCRM Community Forums (archive)

I work for a company that provides database services for non-profits.  We have a client using CiviCRM to accept online contributions and they want us to interface with their system.  What I need to do is create a process that runs nightly on our system to retrieve the most recent contributions entered in CiviCRM.  I also need to retrieve any new contacts.  I have been looking at the REST interface.  It appears I can retrieve contributions by a date, but it doesn't appear that retrieving contacts by a date entered will be an option.  Am I wrong?

Retrieving contacts by a range of ID's could be a possible solution, but it doesn't appear the REST interface supports searching by ranges.  Am I wrong?