See below for a list of frequently asked questions and answers about the PKP Index.

What is the PKP Index?

The PKP Index is a database of articles, books, and conference proceedings using PKP's free, open source Open Journal Systems, Open Monograph Press, and Open Conference Systems software applications. The Index covers all subject areas and includes content from publishers from around the world.

Who can register for the PKP Index?

We are retiring the PKP Index, and are no longer accepting new registrations or submissions.

Why is PKP Index being retired?

PKP started the Index in 2015 to provide a simple, low-barrier service to allow publishers using PKP software to showcase their work and demonstrate their value as soon as they have published their first issue, chapter, or proceeding. We developed the service because new journals found it difficult to be included in major indexing services, often having to wait two years or more to demonstrate a consistent publishing record. Over the past six years we have seen the scholarly indexing environment change, in particular for Open Access journals and with the rise and spread of the Directory of Open Access Journals (DOAJ) and Directory of Open Access Books (DOAB), and we feel that the original issues we were trying to address have been more successfully addressed by others.

In addition, our Index, as popular as it has been to publishers, has to our knowledge never been widely adopted and included by other cataloguing and dissemination services. This has perhaps resulted in a misapprehension amongst journals and publishers that registering within the Index would result in inclusion elsewhere or in expanded readership, and this may simply not be the case.

Finally, as a small team focused first and foremost on providing open source scholarly publishing software, we have never found a suitable way to cost-effectively sustain a service like the Index. New content inclusion requests required constant review and attention, and the infrastructure in general demanded significant maintenance and ongoing optimization work. This maintenance isn’t trivial or cost-free, and the resource expense was drawing us away from far more pressing issues at hand. Ultimately, we feel that it is more responsible for us to use our limited resources in areas where we are stronger.

We are confident that other indexing tools, in particular DOAJ and DOAB, provide a more equitable and sustainable solution to having content (Open Access content in particular) more findable online.

What happens to my journal’s content that’s currently in PKP index?

The content that is in the Index will be kept as-is, and entirely available to harvest via OAI, until December 31 2021. The Index and its contents will be taken offline on January 1, 2022 and archived offline indefinitely by PKP.

What are other alternatives to PKP index?

The best resource available to understand how to increase the impact and readership of your journal is Getting Found, Staying Found, Increasing Impact. If you read it years ago we encourage you to take a closer look - it has been recently updated with a vast amount of new information that relates to today’s scholarly publishing environment. This is the best document to start with, and to refer back to regularly.

We also strongly recommend DOAJ and DOAB. DOAJ is the pre-eminent directory of Open Access journals and their contents, and is entirely searchable. PKP meets regularly with DOAJ to ensure that OJS continues to integrate well with the Directory. A guide on how to apply for DOAJ inclusion has been written by PKP and can be found here.

DOAB is an equivalent directory for Open Access books, and can include monographs published in Open Monograph Press (OMP).

What was the criteria for inclusion in the PKP Index?

To be accepted into the Index, your journal, press, or conference site must: 1) be utilizing PKP Software; 2) include at least one article, chapter, or proceeding, and 3) provide a registered ISSN for journals. Tests, demonstrations, and empty installations will be rejected.

Where can I find my OAI Base URL?

I am receiving an OAI error message when I try to add my publication to the Index.

This could be for a number of reasons. Please review these posts from the PKP Community Support Forum regarding similar errors.

Error says “URL already in use” and I cannot add my publication.

This is most likely because your publication has already been registered in the Index and/or there is a duplicate record in the Index. Send an email with the Publication Name and URL to pkp.contact@gmail.com and we will look into it.

My publication’s articles are not appearing in my PKP Index record.

First, ensure that your individual articles are added to the issue’s Table of Contents. This will allow the metadata for each article to be available for harvesting via OAI. For more information visit this forum post

My publication’s articles from the newest issue are not appearing in my PKP Index record.

The Index harvester will harvest your metadata on a weekly basis. If the newest articles do not appear after a week, please send an email detailing your error to: pkp.contact@gmail.com. Be sure to include the publication name(s) and URL(s).

I cannot locate my publication(s) in the PKP Index.

Using the search box, include quotation marks ( “ “ ) around your publication name. If your publication is not found this way, you can browse all of the PKP Index publications by title.

Why was my publication not accepted into the PKP Index?

Most likely your publication was not accepted into the Index because it failed to meet all of the criteria for inclusion. You can find the criteria for inclusion above.

Can I index a publication that is not using PKP software?

No. All publications must be using PKP software in order to be included in the Index.

How can I update information about my journal or press in the Index?

In order to update information in the Index, you will need to log in with your credentials and click “Edit Publication” for the journal or press you want to update.

Contact Us

The PKP Index is an initiative of the Public Knowledge Project.

For PKP Publishing Services please use the PKP|PS contact form.

For support with PKP software we encourage users to consult our wiki for documentation and search our support forums.

For any other correspondence feel free to contact us using the PKP contact form.

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