MCP Servers

Semantic Scholar MCP Server

Enables searching and retrieving academic papers, authors, citations, and recommendations from Semantic Scholar via MCP.

README

Semantic Scholar MCP Server

An MCP server that provides access to the Semantic Scholar academic paper API, with optional ngrok tunnel for remote access.

Features

search_papers — Search for papers by keyword, year, field of study, and citation count
get_paper — Get full details for a paper by S2 ID, DOI, ArXiv ID, etc.
get_citations — List papers that cite a given paper
get_references — List papers referenced by a given paper
search_authors — Search for authors by name
get_author — Get author profile (h-index, paper count, affiliations)
get_author_papers — List papers by a specific author
recommend_papers — Get paper recommendations based on a seed paper
batch_get_papers — Look up multiple papers in a single request

Setup

Requires Python 3.10+ and uv.

# Install dependencies
uv sync

Optionally set an API key for higher rate limits:

export S2_API_KEY="your-key-here"

Usage

HTTP transport (default) — for remote clients

uv run python server.py

The server listens on http://localhost:8000. The MCP endpoint is at /mcp.

With ngrok tunnel

uv run python server.py --ngrok

This opens a public ngrok tunnel and prints the URL to stderr.

stdio transport — for Claude Desktop

uv run python server.py --transport stdio

Claude Desktop config (claude_desktop_config.json):

{
  "mcpServers": {
    "semantic-scholar": {
      "command": "uv",
      "args": ["--directory", "/path/to/this/project", "run", "python", "server.py", "--transport", "stdio"]
    }
  }
}

Options

Flag	Default	Description
`--transport`	`streamable-http`	`streamable-http` or `stdio`
`--port`	`8000`	Port for HTTP transport
`--ngrok`	off	Open an ngrok tunnel

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