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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use Unpaywall with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Access millions of open-access scholarly articles. Check OA status and retrieve full-text PDF links using DOIs.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 1 capability

The complete Unpaywall capability set.

These are the exact actions your AI can choose when you ask it to work with Unpaywall.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through Unpaywall.

  1. 01

    Get article oa status

    Retrieve Open Access status and locations for a specific DOI

Observed, not estimated

823ms average. Fast in production.

Unpaywall is checked daily against the live service.

Daily averagePeak 951ms
Aug 20Today
Fastest day
645ms
Slowest day
951ms
14-day trend
Slowing+16%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Unpaywall, so you can see the experience inside your AI.

It does not authenticate your account with Unpaywall. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Unpaywall Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_FhVinYZ5ipCUoRhSWZX441L0cACxRSjvwvPVvMMz/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Unpaywall capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "unpaywall-open-access-papers-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_FhVinYZ5ipCUoRhSWZX441L0cACxRSjvwvPVvMMz/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions Unpaywall owners ask.

  • 01

    How do I check if a specific research paper is available for free?

    Use the get_article_oa_status capability with the paper's DOI. Your agent will query the Unpaywall database and return the Open Access status along with direct links to the PDF if available.

  • 02

    Does this capability provide legal versions of the papers?

    Yes. Unpaywall only indexes legal, author-archived, or publisher-provided Open Access versions of scholarly articles. It does not access pirated content.

  • 03

    What information is required to use this server?

    You need the DOI (Digital Object Identifier) of the article and a valid email address to authenticate with the Unpaywall API.

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