The Directory of Open Access Journals (DOAJ) will launch premium metadata services on March 17, 2026, introducing paid access to the most up-to-date metadata while maintaining open access to core metadata services.
The initiative is intended to support the long-term sustainability of DOAJ’s open infrastructure while ensuring that essential metadata functions remain freely accessible to the scholarly publishing community. Core metadata services will continue to remain open, community-owned and freely available, even as new value-added offerings are introduced.
Operating large-scale metadata infrastructure requires ongoing investment in technology, infrastructure and monitoring. DOAJ reported that the service’s API received 412 million requests in 2025, requiring substantial resources to maintain response times, security levels, uptime and system stability. The organization also noted that increasing automated traffic, including AI-related bot activity, has contributed to rising operational costs.
Open metadata—particularly metadata aligned with the FAIR (Findable, Accessible, Interoperable, Reusable) principles—plays a critical role in supporting open-access scholarship and improving the visibility and impact of scholarly publications. DOAJ’s dataset is widely integrated across discovery platforms, indexing services, cataloging systems, research projects and AI-driven tools.
A sustainability review conducted in 2023 by Research Consulting examined the perceived value of DOAJ within the open-access scholarly publishing ecosystem. The study, later discussed in the LSE Impact Blog, highlighted ongoing funding challenges faced by community-driven open infrastructures and suggested monetizing large-scale commercial use of metadata services as one potential path toward financial sustainability while maintaining open access principles.
Beginning March 17, DOAJ will divide some metadata services into two categories. Existing services will remain open but will provide metadata that is approximately one month old. Premium services will provide the most recent metadata versions, with some offerings updated daily.
Open services will include the OAI-PMH feed, public data dump and journal CSV files containing month-old metadata. Premium options will provide more current versions of journal and article metadata, either with daily updates or the most recent available records.
Despite the introduction of premium services, DOAJ confirmed that several tools will continue to provide free access to the latest metadata, including the platform’s website search, API access, widgets and Atom feed.
Pricing for premium services will be determined on a case-by-case basis, reflecting differences in organizational capacity and existing supporter relationships. Libraries that already support DOAJ will receive access to the most current metadata, while waivers will remain available for researchers and students from low- and middle-income countries.
DOAJ also confirmed that several core activities will remain free of charge. These include journal applications for review, indexing services, metadata updates, article metadata uploads and public search access to the index.
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