Open Access Helper does not collect any Personally Identifiable Information (PII) and I do everything to keep it this way.
However to function, the following network requests are made:
To find Open Access copies of scientific articles:
The Digital Object Identifier of the document you are viewing will be sent to the API of unpaywall.org, if no copy is identified a secondary request to the API of core.ac.uk is made.
To find the number of Times Cited:
The Digital Object Identifier of the document you are viewing will be sent to the API of open citations.net
To find Recommendations:
If you click the bronze badge for CORE Recommender, the DOI for the document, along with the title and abstract (if available) of the document you are viewing are sent to oahelper.org, which then in turn requests recommendations from an API at core.ac.uk.
The reason for using oahelper.org to broker the request are found in the request and response formats required for this call. oahelper.org will not collect any information about you personally.
Links to Third Party Services
When there is no Open Access copy, you might be presented the option to request the document from openacessbutton.org. When you click the blue badge to make use of this option, the DOI and URL of the current page are sent to openaccessbutton.org, which will then guide you the rest of the process.
Links to oahelper.org
When you click the Times Cited badge (white badge with purple border), you will be taken to oahelper.org. This request includes the DOI. At oahelper.org an API of opencitations.net is used to display this information. The site does not collect PII.
How is the Digital Object Identifier (DOI) found
The Digital Object Identifier (DOI) is typically found in a meta element as part of the head element of the HTML page you are viewing. For a small number of scientific publishers, additional narrowly defined elements on the page are inspected.
While the DOI is a unique identifier, it can only identify a scientific publication and not you personally.
The reason for describing how it is identified, is to also show that the extension is very limited in scope of what it looks for.
You have full control over how Open Access Helper functions from the settings! Check them out and take control, so that Open Access Helper can service you well!
If you have questions - contact Claus at email@example.com