You use the Identify verb to get back information about a repository.

Let’s see an example request. To start we need to go to the “base” URL:

http://[ServerUrl]/oai/data/oai2_0

Then specify the verb — which in this case is Identify. So add ?verb=Identify to the end of the previous URL to get this:

http://[ServerUrl]/oai/data/oai2_0?verb=Identify

Here's an example response: