We have some rather unusual news to share: Crossref fees are going down again. At its meeting in Paris earlier this month, the Crossref Board approved two further recommendations from the Resourcing Crossref for Future Sustainability (RCFS) project: effective 1st January 2027, we will reduce the majority of Content Registration fees for all 25,000 members, and remove fees for back-year records altogether.
Content Registration fees haven’t increased in around 20 years, and this is the first significant change to them in that timeâdownwards. Since these fees account for the largest share of Crossref’s revenue (around 60%), and since every member registers DOI records, these changes reach further than anything we’ve announced under the RCFS project so far.
The infrastructure that registers and distributes Crossref metadata has been running and growing for more than two decades. It now does considerably more than it was built to do, and it shows: two large, tightly coupled monoliths (Content System and REST API), where a change in one place risks breaking something in another.
In December 2026, we plan to publish new Crossref Member Practices which will set out the standards we expect all Crossref members to meet. From August to October 2026 we are consulting with our members on a draft of these Member Practices. This blog provides the background to this, and explains how you can share your views.
The Crossref community in India is as diverse as the region that it represents, comprising 1605 members, 11 sponsoring organisations, and 5 ambassadors, who between them cover the length and breadth of this country. Between November 2025 and March 2026, we organised three webinars focused on supporting this community with best metadata and publishing practices. We collaborated with the Directory of Open Access Journals (DOAJ) and the Committee on Publication Ethics (COPE) to embed understanding of metadataâs role in the greater context of publishing integrity.
Continuing our blog series highlighting the uses of Crossref metadata, we talked to David Sommer, co-founder and Product Director at the research dissemination management service, Kudos. David tells us how Kudos is collaborating with Crossref, and how they use the REST API as part of our Metadata Plus service.
Introducing Kudos
At Kudos we know that effective dissemination is the starting point for impact. Kudos is a platform that allows researchers and research groups to plan, manage, measure, and report on dissemination activities to help maximize the visibility and impact of their work.
We launched the service in 2015 and now work with almost 100 publishers and institutions around the world, and have nearly 250,000 researchers using the platform.
We provide guidance to researchers on writing a plain language summary about their work so it can be found and understood by a broad range of audiences, and then we support researchers in disseminating across multiple channels and measuring which dissemination activities are most effective for them.
As part of this, we developed the Sharable-PDF to allow researchers to legitimately share publication profiles across a range of sites and networks, and track the impact of their work centrally. This also allows publishers to prevent copyright infringement, and reclaim lost usage from sharing of research articles on scholarly collaboration networks.
An example of a Kudos publication page showing the plain language summary
How is Crossref metadata used in Kudos?
Since our launch, Crossref has been our metadata foundation. When we receive notification from our publishing partners that an article, book or book chapter has been published, we query using the Crossref REST API to retrieve the metadata for that publication. That data allows us to populate the Kudos publication page.
We also integrate earlier in the researcher workflow, interfacing with all of the major Manuscript Submission Systems to support authors who want to build impact from the point of submission.
More recently, we started using the Crossref REST API to retrieve citation counts for a DOI. This enables us to include the number of times content is cited as part of the âbasket of metricsâ we provide to our researchers. They can then understand the performance of their publications in context, and see the correlation between actions and results.
A Kudos metrics page, showing the basket of metrics and the correlation between actions and results
What are the future plans for Kudos?
We have exciting plans for the future! We are developing Kudos for Research Groups to support the planning, managing, measuring and reporting of dissemination activities for research groups, labs and departments. We are adding a range of new features and dissemination channels to support this, and to help researchers to better understand how their research is being used, and by whom.
What else would Kudos like to see in Crossref metadata?
We have always found Crossref to be very responsive and open to new ideas, so we look forward to continuing to work together. We are keen to see an industry standard article-level subject classification system developed, and it would seem that Crossref is the natural home for this.
We are also continuing to monitor Crossref Event Data which has the potential to provide a rich source of events that could be used to help demonstrate dissemination and impact.
Finally, we are pleased to see the work Crossref are doing to help improve the quality of the metadata and supporting publishers in auditing their data. If we could have anything we wanted, our dream would be to prevent âfunny charactersâ in DOIs that cause us all kinds of escape character headaches!
Thank you David. If you would like to contribute a case study on the uses of Crossref Metadata APIs please contact the Community team.
Related reading
Blog
Using the Crossref REST API. Part 11 (with MDPI/Scilit)
