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Unpaywall

io.github.SMABoundless/unpaywall · v1.0.1

Open-access availability for 120M+ scholarly articles via the Unpaywall API

Connect Runs on your machine

Terminal
claude mcp add unpaywall -e UNPAYWALL_EMAIL=<UNPAYWALL_EMAIL> -- uvx unpaywall-mcp-server==1.0.1
claude_desktop_config.json
{
  "mcpServers": {
    "unpaywall": {
      "command": "uvx",
      "args": [
        "unpaywall-mcp-server==1.0.1"
      ],
      "env": {
        "UNPAYWALL_EMAIL": "<UNPAYWALL_EMAIL>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "unpaywall": {
      "command": "uvx",
      "args": [
        "unpaywall-mcp-server==1.0.1"
      ],
      "env": {
        "UNPAYWALL_EMAIL": "<UNPAYWALL_EMAIL>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "unpaywall": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "unpaywall-mcp-server==1.0.1"
      ],
      "env": {
        "UNPAYWALL_EMAIL": "<UNPAYWALL_EMAIL>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
UNPAYWALL_EMAIL
Required
Your email address — required by the Unpaywall API as an identifier (no API key needed). See https://unpaywall.org/products/api

Details

Package[email protected] (PYPI, stdio)
First published4 Jul 2026
Last updated4 Jul 2026
Registry nameio.github.SMABoundless/unpaywall

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