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.
You can now easily search for publications and add them to your ORCID profile in the new beta of Crossref Metadata Search (CRMDS). The user interface is pretty self-explanatory, but if you want to read about it before trying it, here is a summary of how it works.
When you go to to CRMDS, you will see that there is now a small ORCID sign-in button on the top right-hand side of the screen.
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Clicking on this button allows you to connect CRMDS to your ORCID profile and authorises CRMDS to add publications to your profile. First, if you are not already logged into ORCID, CRMDS will ask ORCID to log you in:
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Once you have logged in, ORCID will ask you if you want to allow CRMDS to be able to view and update your ORCID profile:
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After you authorise CRMDS to access your profile, you will be returned to the CRMDS screen and the top right corner of the CRMDS page will indicate that you have connected to your ORCID profile (note, you can always de-authorise CRMDS from accessing your ORCID profile in your ORCID settings):
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Once you are logged in, you can enter search terms that are likely to return records of your publications:
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Each search result will show an icon telling you whether that particular item is visible in your ORCID profile. If the item is not in your ORCID profile, you see an icon like this:
And if the item is already in your ORCID profile, you will see an icon like this:
In the following search results you can see that 1 item is already in Josiah Carberry’s profile, and 2 items are not:
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Clicking on the “Add to Profile” button will confirm that you want to add the specified publication to your ORCID profile:
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After clicking on “Yes” to add the publication to your profile, the search results will refresh to reflect that the item has been added.
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You can then just continue searching for and adding any publications that are not in your ORCID profile.
Note that, occasionally, you may see an orange icon that says that an item is “Not Visible”
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This only occurs when you have previously added an item to your profile using CRMDS and then either:
Set the ORCID privacy for that particular work item to “Private” in your ORCID profile.
Deleted the work from your ORCID profile.
Unfortunately, CRMDS has no way to determine which of these two events occurred However, If you click on the “Not Visible” icon, you will be prompted with two ways to resolve this issue. Either you can:
Reset the privacy settings on the specified work to “Public” or “Limited”
Confirm to CRMDS that you have deleted the item from your profile.
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If the issue was your privacy settings, then once you have changed the privacy settings to public/limited you can simply click on the “Refresh” button and CRMDS will reflect the correct status of the work.
The best way to avoid this kind of confusion is to go to your ORCID settings and set the default privacy level for “works” to either “limited” or “public.”
Crossref Metadata Search is still a “Crossref Labs” project and, as such, we are very interested to hear feedback on this new ORCID functionality for CRMDS. Please send comments, etc. to:
