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Open Access Tools and Services


 Think, Check, Submit can help researchers identify trusted journals for their research. Through a range of tools and practical resources, this international, cross-sector initiative aims to educate researchers, promote integrity, and build trust in credible research and publications. New related issues



This is a plug-in that allows you to find Open Access articles. Add Unpaywall to your browser.


Open Access Button

This plug-in will allow you to obtain full-text articles.  Open Access button will help you to get free, legal research articles delivered instantly or to request from the authors.



Open APC and ESAC

Open APC (Article Processing Charges) offers a way to see the level of expenses on APCs in various countries by institution. ESAC aggregates data and relevant facts for a number of major publishers in order to illustrate their market position and better assess the development of the scholarly publishing market as it transitions to open access.



The Directory of Open Access Journals indexes and provides access to high quality, open access, peer-reviewed journals. The EUI Library is a supporting institutional member of DOAJ. DOAJ also contains information on a journal's level, if any, of APCs. A predatory journal will not be listed in DOAJ. It is still of interested to consult the  archived version of Beall's list of predatory journals


Plan-S and cOAlisation S

Plan-S, launched in 2018, contains one main target plus 10 principles on Open Access as a reality. On 4 September 2018, a group of national research funding organisations, with the support of the European Commission and the European Research Council (ERC), announced the launch of cOAlition S, an initiative to make full and immediate Open Access to research publications a reality.

Other OA tools

Other useful Open Access tools and plug-ins are  Google Scholar Button,  Lazy Scholar (which finds both open access and subscription articles) and  Kopernio (also finding both open access and subscription articles, but requires registration). 

European Research Council (ERC)


OpenAIRE is a network of Open Access repositories, archives and journals that support Open Access policies. OpenAIRE started out as a policy support mechanism for the EC (FP7 pilot and H2020 OA policies), with the aim to be the European scholarly communication hub providing its services to many European funders. Its predecessor, Driver, was in 2014 merged with the OpenAIRE infrastructure.

Cadmus is certified OpenAIRE compliant since 2013.  More information on Cadmus in OpenAIRE.

Horizon Europe until 2027

Horizon Europe is EU’s key funding programme for research and innovation with a budget of €95.5 billion. MOre infromation: Horizon Europe Programme Guide and ERC Work Programme 

Search for projects in Cordis containing EU-funded projects since 1990.


The European E-theses portal Dart contains nearly 700,000 Open Access full-text theses. It is a partnership of research libraries and library consortia who are working together to improve global access to European research theses. Dart harvests the EUI open access theses in Cadmus, and EUI theses are therefore found also in the  Dart E-theses Portal.


Italy's national portal for Electronic Scientific Litterature of Institutional Repositories, Pleiadi, harvests the scientific production of Italian universities and research institutes and has nearly 3 million records. Cadmus content is searchable from  Pleiadi.

Registry of Open Access Repository Mandates and Policies (ROARMAP)

ROARMAP is an international registry of open access mandates and policies (adopted by universities, research institutions and research funders) that require or request their researchers to provide open access to their peer-reviewed research article output by depositing it in an open access repository. The  Open Access Check Tool tells you if a ROARMAP registered OA policy corresponds to H2020 OA guidelines. is a global science gateway—accelerating scientific discovery and progress through a multilateral partnership to enable federated searching of national and international scientific databases and portals. Cadmus content is searchable from Worldwide science via Pleiadi, and via OpenAIRE.

Page last updated on 14 October 2022

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