• STATUS
  • LINKS
  • DECISION
  • HUMAN

How to check DOI access status with your AI

Connect Unpaywall to your AI client to see if a paper is free to read. Once connected, just provide a DOI to get the status.

Ask AI about this page

Short answer

Can my AI tell me if a paper is behind a paywall?

Yes. You give your AI a DOI, and it uses Unpaywall to check for open access versions. You'll see if the paper is free or locked. Here is how it works.

The outcomes.

What you get from this task.

The AI handles the lookup so you don't have to hunt through journal sites.

STATUS

Access confirmation

The AI uses get_article_oa_status to tell you if a paper is open access. You'll know immediately if you can read it for free.

LINKS

Direct PDF access

If an open access version exists, the AI finds the direct link. You get a path straight to the full text.

DECISION

Paywall alerts

The AI identifies when a paper is restricted. This prevents you from wasting time on sites that require a subscription.

HUMAN

Manual verification

If the tool doesn't find a match, you'll need to decide if you want to purchase the article or use a library proxy.

The workflow

What your AI does when a DOI arrives.

The AI acts as a bridge between your chat and the Unpaywall database.

  1. Identify the DOI

    Your AI extracts the DOI from the text or URL you provide.

    get_article_oa_status

  2. Check access status

    The AI queries the Unpaywall database to see if that specific DOI has a legal open access version available.

    get_article_oa_status

  3. Retrieve links

    The AI pulls the direct URL for the open access PDF or landing page.

    get_article_oa_status

  4. Report findings

    The AI tells you if the paper is free to read and provides the link if it is.

    get_article_oa_status

Try it

Copy these to start.

Use these prompts to trigger the Unpaywall check.

Starting points

Replace the bracketed text with your specific DOI or paper details.

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"
    }
  }
}
Copy into chat04

  • Check the access status for DOI 10.1038/s41586-020-2012-7

  • Is this paper behind a paywall? DOI 10.1126/science.abb7015

  • Find an open access version for DOI 10.1016/j.cell.2021.01.001

  • Check if I can read this for free: 10.1038/nature12345

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Start here

Connect Unpaywall once, then ask.

Connect the Unpaywall MCP to your client. Your credentials stay encrypted, and you can start checking DOIs immediately.

Connect Unpaywall to your AI

FAQ

How this task behaves.

  • 01

    Can the AI download the PDF for me?

    No. The AI can find the link to the open access PDF, but you have to click the link and download it yourself.

  • 02

    What if the DOI is invalid?

    The AI will tell you it couldn't find any information for that specific DOI.

  • 03

    Can the AI bypass paywalls on subscription sites?

    No. The AI only finds legal, open access versions through Unpaywall. It cannot hack or bypass journal paywalls.

  • 04

    Does it work with just a paper title?

    It works best with a DOI. While the AI might find the DOI from a title, providing the DOI directly is the most reliable way.

  • 05

    Can the AI change my library settings?

    No. The AI only reads access data; it has no control over your institutional subscriptions or library accounts.

  • More questions about Unpaywall? See everything the Unpaywall Connector can do

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