Many thanks, Victor!

>For people already using Unpaywall: Do you have any estimates how much
>larger the number of OA versions becomes by including CORE?

Unfortunately I do not know how many more Open Access versions the integration of CORE actually ads, it does add a bit of resilience to the tool.

My thought was the following flow for users should be: 

1) Check unpaywall.org
2) Check core.ac.uk 
3) Offer the user a link to OpenAccessButton.org (OAB) to request the document. 

This way, the certainty of there not being an OA version is very high and the request to OAB all the more valuable. It's a fabulous service, which I appreciate a ton. Now the latest release can replace that request to OAB with a library specific link, like your Link Resolver or Request Form.

>"This add-on requires a newer version of Firefox (at least version
>80.0). You are using Firefox 78.0."

This was indeed an error of my making, I picked a minimum Firefox version, but there is nothing in the tool that would stop me from lowering to 78 and I will do that for the next release. 

>We recently started an initiative to make it easier to find translations
>of scientific articles.

Interesting Project - To make integration easy, a JSON endpoint that accept a DOI would hit the mark for me and surely for others.

I appreciate the kind feedback! Feel free to reach out to me at any time at [log in to unmask], if you want to discuss about that API endpoint, or anything else for that matter.

Claus

On Sat, 13 Feb 2021 16:53:00 +0100, Victor VENEMA <[log in to unmask]> wrote:

>That is a great initiative. I have put it on the Open Science Feed.
>https://reddit.com/r/Open_Science/comments/lj2tt5/new_open_access_helper_a_free_browser_extension/
>
>For people already using Unpaywall: Do you have any estimates how much
>larger the number of OA versions becomes by including CORE?
>
>I will have to be patient, my SUSE Linux distribution tends to wait a
>few versions to have more security problems fixed. So I got the warning:
>"This add-on requires a newer version of Firefox (at least version
>80.0). You are using Firefox 78.0." I thought I'd give you a heads up in
>case this limitation is not really in the software, but a matter of you
>quickly testing that it also works with older versions and telling Mozilla.
>
>We recently started an initiative to make it easier to find translations
>of scientific articles. Would you be interested in including that kind
>of information into the add-on? Are there any requirements on the API of
>our database that would make it easier for you (or similar add-ons) to
>use it?
>
>With best regards,
>Victor
>
>On 13/02/2021 12:37, Claus Wolf wrote:
>> Hello Code4Lib community,
>>
>> Please allow me to tell you about https://www.oahelper.org, a free browser extension, which combines the APIs of unpaywall.org and core.ac.uk to help users find free and legal Open Access copies for otherwise paywalled articles.
>>
>> To ensure that your users are not left “alone”, the extension also offers basic support for EZProxy and your local Link Resolver. The goal is to let users access the benefit of the library’s subscription with a simple click of the button, or at least be able to check availability.
>>
>> The app, which is available for Chrome (and thus all Chromium based browsers, such as Opera & Microsoft Edge), Firefox, Safari (macOS) and as an app on iOS and iPadOS is free to users and libraries a like. Unlike the common wisdom that if you are not paying for something you are the product, I'd like to assure you that this isn't the case with Open Access Helper (feel free to check the network traffic). It's my hobby and a ton of fun. I won't say no to a cup of tea, if you were to insist ;)
>>
>> Downloads are available from https://www.oahelper.org
>>
>> The Chrome & Firefox extension is currently available in English, Germany, French and Dutch. The French and Dutch translations were provided through the kindness of librarians.
>>
>> I would be delighted, if you and your colleagues would consider supporting my effort:
>>
>> - Check your institution’s EZProxy Settings are represented correctly at https://www.oahelper.org/proxy/
>> - Consider submitting your Link Resolver to me ([log in to unmask])
>> - Tell your students and teaching staff about it  - Thank you :)
>> - If you speak a language other than the ones supported already, please consider contributing a translation (eMail me at [log in to unmask] to find out more)
>>
>> Many thanks for your interest!
>>
>> Kind regards,
>>
>> Claus
>> [log in to unmask]
>>
>
>--
><>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>
>Victor Venema
>Grassroots Journals
>https://grassroots.is
>
>E-mail: [log in to unmask]
>E-mail: [log in to unmask]
>Homepage: http://www2.meteo.uni-bonn.de/victor
>Blog: http://variable-variability.blogspot.com
>Mastodon: https://fediscience.org/@VictorVenema
>Twitter: https://twitter.com/VariabilityBlog
>Matrix: @viv:datenburg.org
>GIT: https://codeberg.org/Venema
>GitHub: https://github.com/VictorVenema/
>
>https://reddit.com/r/GrassrootsJournals/
>https://twitter.com/Grassr_Journals
>
>https://reddit.com/r/Open_Science/
>https://fediscience.org/@OpenScienceFeed
>https://twitter.com/OpenScienceR
>
>There is no need to answer my mails in your free time.
><>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>-<>