Catalog Integration


Integrating Library Catalogs

If your library's catalog has a Z39.50 server, we can set it up so that relevant titles from your catalog display right on your search results Another option for adding your library catalog is available through Worldcat - see below for more information. SKIP TO OCLC Worldcat


We will need the following information to set up your catalog as a target:

1. Your library catalog's URL

2. Your library catalog’s z39.50 server name and port location.

3. The database code associated with your library’s holdings. It may be a default value like "INNOPAC" or "UNICORN," but it may also be a value specific to your library - if your catalog admin doesn't know, the vendor can often provide this information.

4. If your z39.50 server port has a firewall, you’ll need to allow access to the following Credo IPs:

If you have the server and port info, but are not sure whether your catalog has a firewall, you can contact for testing. We’ll verify and confirm with you.



The "More Library Resources" area can display results from and link directly to the WorldCat platform. Displayed results will be limited to your library's holdings.

You will need the following information:

  1. Your OCLC Library Code
  2. Your WorldCat Search API Key

This information must be requested from OCLC by the library. Credo Reference cannot request this on your behalf. Libraries can begin the request process by reviewing the information here:

or by emailing

Once you have that information, please send it to for addition to your account.



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