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Mastra AI
Unpaywall (Open Access Papers) MCP Server

Bring Open Access
to Mastra AI

Learn how to connect Unpaywall (Open Access Papers) to Mastra AI and start using 1 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.

MCP Inspector GDPR Free for Subscribers
Get Article Oa Status

Compatible with every major AI agent and IDE

ClaudeClaude
ChatGPTChatGPT
CursorCursor
GeminiGemini
WindsurfWindsurf
VS CodeVS Code
JetBrainsJetBrains
VercelVercel
+ other MCP clients
Unpaywall (Open Access Papers)

What is the Unpaywall (Open Access Papers) MCP Server?

Connect to the Unpaywall database to instantly find legal, open-access versions of scholarly papers. This server allows your AI agent to bypass paywalls by locating freely available PDFs and repository versions of research articles using their Digital Object Identifier (DOI).

What you can do

  • OA Status Verification — Instantly check if a specific scholarly article is available for free under an Open Access license.
  • PDF Retrieval — Get direct links to legal, full-text PDF versions of research papers hosted on publisher sites or institutional repositories.
  • Metadata Inspection — Retrieve information about the type of Open Access (gold, green, bronze, etc.) and the hosting source.
  • Research Automation — Streamline literature reviews by letting your agent automatically find accessible versions of cited works.

How it works

  1. Subscribe to this server
  2. Enter your email address (required by Unpaywall's API policy)
  3. Start searching for open-access papers in Claude, Cursor, or any MCP-compatible client

Who is this for?

  • Researchers & Academics — quickly find full-text versions of papers without navigating multiple library portals
  • Students — access required reading materials that are legally available for free
  • Data Scientists — automate the collection of open-access research data and papers for analysis

Built-in capabilities (1)

get_article_oa_status

Retrieve Open Access status and locations for a specific DOI

Why Mastra AI?

Mastra's agent abstraction provides a clean separation between LLM logic and Unpaywall (Open Access Papers) tool infrastructure. Connect 1 tools through Vinkius and use Mastra's built-in workflow engine to chain tool calls with conditional logic, retries, and parallel execution. deployable to any Node.js host in one command.

  • Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add Unpaywall (Open Access Papers) without touching business code

  • Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation

  • TypeScript-native: full type inference for every Unpaywall (Open Access Papers) tool response with IDE autocomplete and compile-time checks

  • One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure

M
See it in action

Unpaywall (Open Access Papers) in Mastra AI

AI AgentVinkius
High Security·Kill Switch·Plug and Play
Why Vinkius

Unpaywall (Open Access Papers) and 4,000+ other MCP servers. One platform. One governance layer.

Teams that connect Unpaywall (Open Access Papers) to Mastra AI through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.

4,000+MCP Servers ready
<40msCold start
60%Token savings
Raw MCP
Vinkius
Server catalogFind and host yourself4,000+ managed
InfrastructureSelf-hostedSandboxed V8 isolates
Credential handlingPlaintext in configVault + runtime injection
Data loss preventionNoneConfigurable DLP policies
Kill switchNoneGlobal instant shutdown
Financial circuit breakersNonePer-server limits + alerts
Audit trailNoneEd25519 signed logs
SIEM log streamingNoneSplunk, Datadog, Webhook
HoneytokensNoneCanary alerts on leak
Custom domainsNot applicableDNS challenge verified
GDPR complianceManual effortAutomated purge + export
Enterprise Security

Why teams choose Vinkius for Unpaywall (Open Access Papers) in Mastra AI

The Unpaywall (Open Access Papers) MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 1 tools execute in hardened sandboxes optimized for native MCP execution.

Your AI agents in Mastra AI only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.

Unpaywall (Open Access Papers)
Fully ManagedVinkius Servers
60%Token savings
High SecurityEnterprise-grade
IAMAccess control
EU AI ActCompliant
DLPData protection
V8 IsolateSandboxed
Ed25519Audit chain
<40msKill switch
Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

The Vinkius Advantage

How Vinkius secures Unpaywall (Open Access Papers) for Mastra AI

Every tool call from Mastra AI to the Unpaywall (Open Access Papers) MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

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

Use the get_article_oa_status tool 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 tool 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.

04

How does Mastra AI connect to MCP servers?

Create an MCPClient with the server URL and pass it to your agent. Mastra discovers all tools and makes them available with full TypeScript types.

05

Can Mastra agents use tools from multiple servers?

Yes. Pass multiple MCP clients to the agent constructor. Mastra merges all tool schemas and the agent can call any tool from any server.

06

Does Mastra support workflow orchestration?

Yes. Mastra has a built-in workflow engine that lets you chain MCP tool calls with branching logic, error handling, and parallel execution.

07

createMCPClient not exported

Install: npm install @mastra/mcp

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