Schema | Unpaywall MCP Server

Unpaywall MCP Server

Describes the environment variables required to run the server.

Name	Required	Description	Default
`UNPAYWALL_EMAIL`	Yes	Your email address used as Unpaywall API identifier

Features and capabilities supported by this server

Capability	Details
`tools`	{ "listChanged": false }
`prompts`	{ "listChanged": false }
`resources`	{ "subscribe": false, "listChanged": false }
`experimental`	{}

Functions exposed to the LLM to take actions

Name	Description
unpaywall_lookupA	Look up open-access availability for a scholarly article by DOI. Returns OA status, best OA location (PDF/landing page URL, license), all OA locations, journal info, authors, and publication details. Args: doi: The DOI to look up (e.g. "10.1038/nature12373")
unpaywall_searchA	Search Unpaywall for scholarly articles by title. Searches across 120M+ article titles. Supports AND (default), quoted phrases, OR, and negation (-term). Returns up to 50 results per page. Args: query: Search terms for article titles (e.g. "machine learning") is_oa: Filter by open-access status (true = OA only, false = closed only, omit for all) page: Page number for pagination (50 results per page, default 1)
unpaywall_export_risA	Export the most recent unpaywall_lookup or unpaywall_search results as RIS format. Save output as a .ris file and import into Zotero: File -> Import.
unpaywall_export_bibtexA	Export the most recent unpaywall_lookup or unpaywall_search results as BibTeX format.

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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