scholar-mcp

scholar-mcp is a plugin for Claude Code from pvliesdonk/scholar-mcp. Its manifest loads nothing; the 1 skill it bundles cost 42 tokens per session together, scanned A, original, MIT.

A scholarly research server for finding papers, patents, books, and technical standards. It connects an AI coding agent to academic-source data.

In plain words
What is it for?
Use it to find relevant publications, patents, books, and standards, and to work with citation information. It can also download PDFs when read-only mode is disabled.
Why use it?
It reduces the need to search several research databases separately when you need trustworthy sources. An optional Semantic Scholar API key can help avoid strict unauthenticated request limits.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it to find relevant publications, patents, books, and standards, and to work with citation information. It can also download PDFs when read-only mode is disabled.

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Install in Claude Code
/plugin marketplace add pvliesdonk/scholar-mcp
/plugin install scholar-mcp
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/pvliesdonk/scholar-mcp

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for scholar-mcp

README.md
[![agentmods](https://agentmods.dev/badge/plugins/pvliesdonk/scholar-mcp/plugin/github.svg)](https://agentmods.dev/plugins/pvliesdonk/scholar-mcp/plugin)
Your own site
<a href="https://agentmods.dev/plugins/pvliesdonk/scholar-mcp/plugin"><img src="https://agentmods.dev/badge/plugins/pvliesdonk/scholar-mcp/plugin/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for scholar-mcp

Your own site · 80×15
<a href="https://agentmods.dev/plugins/pvliesdonk/scholar-mcp/plugin"><img src="https://agentmods.dev/badge/plugins/pvliesdonk/scholar-mcp/plugin.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 1 skill cost 42 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

scholar-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 18d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude-plugin/plugin/.claude-plugin/plugin.json · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{
  "name": "scholar-mcp",
  "description": "Scholarly-sources MCP server for papers, patents, books, and standards.",
  "version": "2.0.0",
  "author": {
    "name": "Peter van Liesdonk"
  },
  "homepage": "https://pvliesdonk.github.io/scholar-mcp/",
  "repository": "https://github.com/pvliesdonk/scholar-mcp",
  "license": "MIT",
  "keywords": [
    "scholar",
    "papers",
    "patents",
    "books",
    "standards",
    "citations",
    "mcp"
  ],
  "userConfig": {
    "s2_api_key": {
      "type": "string",
      "title": "Semantic Scholar API key",
      "description": "Semantic Scholar API key. Optional but strongly recommended: a key has an introductory 1 req/s allowance; anonymous users share capacity and may be throttled. Request one at https://www.semanticscholar.org/product/api#api-key-form.",
      "required": false,
      "sensitive": true
    },
    "read_only": {
      "type": "boolean",
      "title": "Read-only mode",
      "description": "When true, write-tagged tools (PDF download and conversion cache writes) are hidden. Set false to enable them.",
      "required": false,
      "default": true
    },
    "cache_dir": {
      "type": "directory",
      "title": "Cache directory",
      "description": "Directory for the SQLite cache database (cache.db) and downloaded PDFs (pdfs/, md/).",
      "required": true
    },
    "contact_email": {
      "type": "string",
      "title": "Contact email",
      "description": "Contact email for the OpenAlex polite pool (improves rate limits). Also enables Unpaywall lookups as a PDF fallback source.",
      "required": false
    },
    "docling_url": {
      "type": "string",
      "title": "docling-serve URL",
      "description": "Base URL of a running docling-serve instance for PDF conversion (e.g. http://localhost:5001). When unset, PDF conversion tools return an error.",
      "required": false
    },
    "vlm_api_url": {
      "type": "string",
      "title": "VLM API URL",
      "description": "OpenAI-c

Read the full file on GitHub · 95 lines

Contents

What it installs

The manifest is a name and a version. 1 skill travel with it, and installing the plugin installs all of them — 42 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 18d ago Changed 81b6b165a68d
  2. 25d ago Changed ce0d42b3ba4d
  3. 1mo ago Changed f90c52df1f05
  4. 1mo ago Changed af584ed1ecb6
  5. 1mo ago Changed 612a08426995
  6. 1mo ago First seen · 95 lines scan A 7bb6618614a9

Subscribe to this mod's changes

scholar-mcp is a plugin published in the GitHub repository pvliesdonk/scholar-mcp (2 stars, last pushed today), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.