Unpaywall
Chat with AI and run tools instantly.
Unpaywall API providing open access status and full-text availability for scholarly articles.
Use in your AI tool
Use the tools from this page
Opens ChatGPT on the web or desktop and asks it to use the WebMCP tools available here.
Connect the MCP server
You’ll sign in to MCPBundles when your client connects.
https://mcp.mcpbundles.com/bundle/unpaywallChat in MCPBundles Studio
Sign in once, then chat here with saved access — one connection to many servers, with a history of what your AI ran.
Chat with AI and run tools instantly.
Browse all toolsLive probe refreshed Sep 14, 2026 · Endpoint host mcp.mcpbundles.com
AI SkillSKILL.md
Domain knowledge for Unpaywall — workflow patterns, data models, and gotchas for your AI agent.
Unpaywall
Unpaywall provides open access status and full-text links for scholarly articles. Look up by DOI or search. No auth required.
Data Model
- OA Status — open access status for a DOI.
- DOI Metadata — metadata for a DOI.
- Search — search OA articles.
- Publisher Info — publisher data.
- OA Statistics — aggregate OA statistics.
Gotchas
- DOI required: Most lookups require DOI. Use format 10.1234/example.
- Email param: Including email in requests improves rate limits (polite pool).
Tools discovered (5)
Unpaywall Get Doi Metadata
Retrieve DOI metadata and registration information. Returns detailed DOI data including title, authors, journal, and publication details.
Unpaywall Get Oa Statistics
Retrieve open access statistics and trends from Unpaywall. Returns aggregated OA adoption statistics and trends (simulated for this implementation).
Unpaywall Get Oa Status
Check open access status and availability for scholarly articles using Unpaywall. Returns detailed information about article accessibility including OA status, licensing, repository availability, and full-text URLs. Essential for research compliance, open access analysis, and finding legal full-text access to academic papers.
Unpaywall Get Publisher Info
Retrieve publisher information and OA policies for a given DOI. Returns publisher details and open access policies from Unpaywall data.
Unpaywall Search Oa Articles
Search for open access articles in the Unpaywall database. Returns articles that are available as open access, useful for finding freely available research.
Frequently Asked Questions
What is the Unpaywall MCP server?
Unpaywall API providing open access status and full-text availability for scholarly articles. It provides 5 tools that AI agents can use through the Model Context Protocol (MCP).
How do I connect Unpaywall to my AI agent?
Add the MCPBundles server URL to your MCP client configuration (Claude Desktop, Cursor, VS Code, etc.). The URL format is: https://mcp.mcpbundles.com/bundle/unpaywall. Authentication is handled automatically.
How many tools does Unpaywall provide?
Unpaywall provides 5 tools that can be called by AI agents, along with a SKILL.md that gives your AI agent domain knowledge about when and how to use them.
What authentication does Unpaywall require?
Unpaywall uses open data APIs — no authentication required.
Setup Instructions
Connect Unpaywall to any MCP client in minutes
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