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.
Metadata Manager (beta) offers a way to deposit and update metadata for journal articles for both single and multiple deposits.
You’ll now see your Metadata Manager workspace. This is where all deposits occur, both new deposits and updates to content you’ve already registered with Crossref. To return to this view at any time, click Home at the top of the screen.
Your workspace holds your list of publications, and it will be blank when you first log in. As you add the publications you want to manage to Metadata Manager, they’ll start collecting on this screen.
You can add new publications and edit existing publications you have previously submitted to our system from your workspace. You can also click into each publication and add or edit articles against them.
The home button - Return to the overview of all your publications by clicking Home.
Deposit history - See your previous deposits made via Metadata Manager (excludes deposits via other deposit methods such as HTTPS POST, or the web deposit form).
To deposit - Shows items for which you’ve entered information, but have not yet deposited with us. The number next to To deposit shows how many records are awaiting deposit.
Your username - Shows the credential you’ve used to log in. Click the down arrow to access account functions, log out, and view a tutorial of Metadata Manager.
Search publication - This search bar allows you to find and add publications to your workspace. You can search by title name or title-level DOI.
New publication - This section allows you to create a new journal and add it to your workspace.
Page maintainer: Sara Bowman Last updated: 2022-July-22