Our REST API makes all of the metadata we hold publicly available. It receives the majority of our API traffic, with around 1 billion hits per month. It’s one of the key ways that we fulfil our mission to make research objects easy to find, cite, link, assess, and reuse. From 1 December 2025, we will be revising the rate limits for the public and polite pools of the REST API to ensure that we can maintain a stable and reliable system, and that metadata is freely available to everyone.
Noyam Journals, based in Accra, Ghana, was recently recognised for the completeness of its metadata through the Crossref Metadata Award, part of our 25th anniversary celebrations. Noyam was one of six publishers worldwide to receive the award and stood out as a leader among members of our Global Equitable Membership (GEM) Program.
Wednesday 22nd October 2025—Crossref, the open scholarly infrastructure nonprofit, today releases an enhanced dashboard showing metadata coverage and individual organisations’ contributions to documenting the process and outputs of scientific research in the open. The tool helps research-performing, funding, and publishing organisations identify gaps in open research information, and provides supporting evidence for movements like the Barcelona Declaration for Open Research Information, which encourages more substantial commitment to stewarding and enriching the scholarly record through open metadata.
Welcome back to our series of case studies of research funders using the Grant Linking System. In this interview, I talk with Cátia Laranjeira, PTCRIS Program Manager at FCCN|FCT, Portugal’s main public funding agency, about the agency’s approach to metadata, persistent identifiers, Open Science and Open Infrastructure.
With a holistic approach to the management, production and access to information on science, FCCN|FCT’s decision to implement the Grant Linking System within their processes was not simply a technical upgrade, but a coordinated effort to continue building a strong culture of openness. With the mantra “register once, reuse always”, FCCN|FCT efforts to embrace open funding metadata was only logical.
Registering new articles and working with volumes/issues
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Registering new articles and working with volumes/issues
The Metadata Manager tool is in beta and contains many bugs. It has been deprecated since 2021 and will be sunset at the end of 2025. We recommend using an alternative such as the web deposit form, our new record registration form for journal articles and grants, or the OJS plugin if your content is hosted on the OJS platform from PKP.
Click into the journal to view all of its associated articles in your workspace. You will only see previous deposits made using Metadata Manager. To see deposits made using other deposit methods, manually add them by searching for the article using Search.
If your journal does not have volumes or issues, click Add record, select New article, and go to add article metadata.
New article in new volume and/or issue
If the article is part of a new volume and/or issue, click Add record and select New volume/issue. Complete the fields in the volume/issue form. The blue/asterisk * mark indicates a required field. Click Save, then click Close. The volume/issue is now added into your workspace (you only need to do this once for all articles associated with this volume/issue). The volume/issue now appears in your journal Record List - click Add article on the right of that row.
If the new article is part of an existing volume or issue, click on Add article by the relevant volume/issue. To add an existing volume/issue to your workspace, enter its DOI into the search bar and click Add.
Provide contributor, funding, license, references, and additional metadata by clicking on each section to open it out. The blue/asterisk * mark indicates a required field, and we recommend that you deposit as much metadata as possible for the optional fields.
At any time, click Continue (at the top right of the screen) and select Add to deposit, Save, or Review.
If you would like to know more about the metadata for each field, we provide tool tips that appear on the right side of the form. You can turn these off be selecting Off in Show help slider at the top of the form. For a broader overview, explore our metadata best practices.
Metadata Manager checks your metadata to ensure that you provide the correct type of information needed for a successful deposit. You will see warnings when the metadata does not validate, which contain guidance on the type of metadata we are expecting. These do not need to be corrected until you are ready to submit the deposit.
If you participate in Crossmark, you can also add Crossmark metadata to the article record using Metadata Manager. This section will automatically appear at the bottom section of the article form for Crossmark participants - please contact us if the section doesn’t appear for you.
Page maintainer: Sara Bowman Last updated: 2022-July-22
