Unpaywall MCP Server

Example Use Cases

• 1

  Fetch detailed metadata for scholarly articles by DOI.

• 2

  Search for academic article titles with open access filtering.

• 3

  Retrieve and extract text from open access PDFs for summarization or analysis.

Description

This MCP server exposes Unpaywall's API functionalities to AI clients, enabling them to fetch metadata by DOI, search article titles, obtain the best open access fulltext links, and download and extract text from open access PDFs. It facilitates integration with MCP-enabled LLM clients, supporting polite usage with required email identification and offering tools to control output size and handle rate limits. The server runs on Node.js 18+ and can be used via npx or local installation, making it easy to deploy and integrate.