paper_download

通过 DOI 下载一篇论文 PDF（本地多源下载：Unpaywall → Publisher OA → arXiv → Sci-Hub → scidownl）。

SERVERScholar MCP Server SOURCE45645678a/scholar-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade A, identity unverified Pull the record →

This record as markdown: /tools/45645678a-scholar-mcp/paper-download.md

WHAT IT DOES

What paper_download does on Scholar MCP Server

AI agents call paper_download to retrieve information from Scholar MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why paper_download is rated Low

This is a fetch/retrieval operation that obtains published academic papers. While it accesses repositories including Sci-Hub (which operates in legal gray zones in some jurisdictions), the tool itself performs no side effects, code execution, data modification, or destructive actions.

From the tool's definition Tool downloads PDF papers via DOI from multiple academic sources (Unpaywall, Publisher OA, arXiv, Sci-Hub, scidownl). The action is retrieval-only with no modification, deletion, or execution of code.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs paper_download safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Scholar MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For paper_download, this is the rule to start with:

paper_download Allowed

paper_download is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "paper_download": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Scholar MCP Server, apply this rule, and every paper_download call is checked against it from then on.

FAQ

Questions about paper_download

What does the paper_download tool do? +

通过 DOI 下载一篇论文 PDF（本地多源下载：Unpaywall → Publisher OA → arXiv → Sci-Hub → scidownl）。. It is categorised as a Read tool in the Scholar MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on paper_download? +

Register the Scholar MCP Server MCP server in PolicyLayer and add a rule for paper_download: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Scholar MCP Server. Nothing to install.

What risk level is paper_download? +

paper_download is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit paper_download? +

Yes. Add a rate_limit block to the paper_download rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block paper_download completely? +

Set action: deny in the PolicyLayer policy for paper_download. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides paper_download? +

paper_download is provided by the Scholar MCP Server MCP server (45645678a/scholar-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Scholar MCP Server, and thousands of servers like it.

This server

All 8 Scholar MCP Server tools →

Across the catalogue

The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →