@pipeworx/unpaywall

Connect: https://gateway.pipeworx.io/unpaywall/mcp · Install: one-click buttons

Tools: 2

Unpaywall MCP — open-access paper lookup, no API key (polite-pool email).

Tools

• get_oa(doi) — OA status + best free legal copy for a DOI.
• search_papers(query, is_oa?, page?) — keyword search, optionally OA-only.

Auth

Unpaywall requires a contact email as a polite-pool identifier.

• Platform email: gateway env PLATFORM_UNPAYWALL_EMAIL (injected as _email).
• BYO: ?_email=you@example.com on the gateway URL.

Data source

https://api.unpaywall.org/v2/ — public, email-identified.

Tools

• get_oa — Given a DOI, fetch open-access status and the best free legal copy if one exists. Returns is_oa, oa_status (gold | green | hybrid | bronze | closed), best location (URL, host type, license), and journ
• search_papers — Keyword search across Unpaywall’s coverage of scholarly papers. Optionally restrict to OA-only. Returns up to 50 results per page.