Unpaywall Mcp

io.github.mrfentmenPublished by GitHub account mrfentmenv1.0.0Updated Oct 24, 2026

Open access links from Unpaywall. No key required.

VerifiedSTDIODesktop onlyWeb Search & ScrapingKnowledge & Memory

Overview

AI-generated overview

Lets an assistant look up open access links for scholarly articles through Unpaywall, with no API key required.

What you can do
This local MCP server connects an assistant to Unpaywall, a service that finds free, legal open access versions of paywalled research papers. Based on the registry description, it returns open access links for articles. No tool list is published, so the exact tool names and parameters are not documented here.
When to use it
Worth adding when an assistant needs to find free full-text versions of academic papers, for example during literature review or citation checking. It is a narrow, single-purpose lookup, so it is not useful outside scholarly article access.
Requirements
Runs as a local process on the user's machine via the npm package @mrfentmen/unpaywall-mcp over stdio, so Node.js and npm are needed. The registry description states no key is required, and no environment variables or headers are declared. Desktop only; not available as a web executable.
Before you install
The server sends article identifiers or queries to Unpaywall, a third-party service, so lookups leave the machine. No credentials are requested. No tool list is published, so verify what it actually calls before relying on it.

Installation

In SourceWeft

  1. Open Unpaywall Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

This repository has no README.

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.0.0LatestSep 22, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.