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Find free legal full-text versions of scholarly articles via Unpaywall
Passed 22 of 22 test cases with the skill, and 21 of 22 without it.
1 fixed21 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
A test case the skill fixed. Same model, same prompt, with and without the skill.
I don't have the DOI for a paper, only its title 'Attention Is All You Need'. How do I search the Unpaywall API by title to look up its open access status?
| Checked | Without skill | With skill |
|---|---|---|
| Explains that Unpaywall API requires a DOI path parameter and does not support title search endpoints. | Missed | Passed |
The instructions your model reads when the skill loads.
Unpaywall is a free, open database of over 40 million free scholarly articles. Built by the nonprofit OurResearch, Unpaywall indexes legal open access (OA) copies of papers from thousands of institutional repositories, preprint servers, publisher websites, and government archives. It is the most comprehensive source for finding freely available versions of paywalled academic literature.
Researchers, librarians, and tool developers use Unpaywall to locate open access copies of papers they need, assess the OA status of publications, and integrate OA discovery into their workflows. The database is updated daily, scanning repositories and publisher sites for new open access content. Unpaywall categorizes OA into types: gold (published OA), green (repository copy), hybrid (OA in subscription journal), and bronze (free to read on publisher site).
The API requires only an email address for authentication and is free for non-commercial use with a generous rate limit of 100,000 requests per day.
Authentication is via email address passed as a query parameter. No API key or registration is needed -- just provide a valid email:
[email protected]
This email is used for contact purposes only and to identify your application. The API will reject requests without a valid email address. For commercial use or higher rate limits, contact OurResearch for an API key.
GET https://api.unpaywall.org/v2/{doi}| Param | Type | Required | Description |
|---|---|---|---|
| doi | string | Yes | The DOI of the paper (URL-encoded in path) |
| string | Yes | Your email address |
curl "https://api.unpaywall.org/v2/10.1038/[email protected]"
is_oa: boolean indicating if any OA version existsbest_oa_location: the best available OA copy with url, url_for_pdf, evidence, host_type, license, and versionoa_locations: array of all known OA copiesoa_status: gold, green, hybrid, bronze, or closedtitle, doi, year, genre, journal_name, publishertest cases passed, vs 21 / 22 without
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