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.
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.
The Review selection provides a condensed view of all the metadata you’ve provided in the form, so you can check it before submitting the record for deposit. Click Continue at the top of the form, and select Review. You can also Review All submissions on the To deposit screen before submitting the deposit.
Submitting a deposit
When you have finished adding article metadata and would like to deposit, click Continue from the article form, and select Add to deposit.
You can also do this from the Record List - select the article(s) you would like to deposit by checking the box to the left of the article title. You will then see the Action menu, and you can select Add to deposit. You can also move to, duplicate, and remove selected records using these buttons in the Action menu. If you select Remove for a record that has not been deposited, it will be erased from Metadata Manager. Records previously deposited will not be deleted from our system, only removed from the Metadata Manager workspace. If you created an article outside of a volume or issue, you can associate it with a volume or issue using Move to.
To submit your item(s) for deposit, click To deposit at the top of the screen. Please submit a maximum of 20 articles at a time. This will reduce the chance of an error with Metadata Manager.
Here, you can collect and review all your journal-specific records using Review all. The system will display any errors with a red flag by the respective record(s). You must correct these errors before you can deposit. If there are no errors, the Deposit button will be activated. Click Deposit and the system will immediately process your deposit request.
Page maintainer: Sara Bowman Last updated: 2022-July-22
