How do I install Alexandria?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

Is Alexandria official?

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

How is the trust score calculated?

This listing scores 50 (Fair). The formula is published on the methodology page.

MCPpedia

Alexandria MCP Server | MCPpedia

Alexandria MCP Server

Name: Alexandria MCP Server
Author: the-40-thieves

Search, read, and cite across 152 libraries: 11 tools, 3 prompts, and a full-text resource.

Tools Versions Alternatives

Registrythe-40-thieves

50Fair

Install

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "the-40-thieves-alexandria-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@the-40-thieves/alexandria-mcp@11.0.0"
      ],
      "env": {
        "OPENAI_API_KEY": "YOUR_OPENAI_API_KEY",
        "ALEXANDRIA_BASE_URL": "",
        "ALEXANDRIA_API_KEY": "YOUR_ALEXANDRIA_API_KEY",
        "CORE_API_KEY": "YOUR_CORE_API_KEY",
        "COURTLISTENER_API_KEY": "YOUR_COURTLISTENER_API_KEY",
        "GOVINFO_API_KEY": "YOUR_GOVINFO_API_KEY",
        "GOOGLE_BOOKS_API_KEY": "YOUR_GOOGLE_BOOKS_API_KEY",
        "GITHUB_TOKEN": "YOUR_GITHUB_TOKEN",
        "NASA_ADS_API_KEY": "YOUR_NASA_ADS_API_KEY",
        "EUROPEANA_API_KEY": "YOUR_EUROPEANA_API_KEY",
        "SEMANTIC_SCHOLAR_API_KEY": "YOUR_SEMANTIC_SCHOLAR_API_KEY"
      }
    }
  }
}

Install guide

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Environment

Name	Required	Notes
OPENAI_API_KEY	No	OpenAI key for routing (library_ask), synthesis (library_answer, library_research), and embeddings (library_ingest). Search and read tools work without it. Secret.
ALEXANDRIA_BASE_URL	No	OpenAI-compatible gateway base URL shared by every LLM role (router, synth, research, embeddings, rerank). Falls back to https://api.openai.com/v1.
ALEXANDRIA_API_KEY	No	API key paired with ALEXANDRIA_BASE_URL. Falls back to OPENAI_API_KEY. Secret.
CORE_API_KEY	No	Unlocks the core source (CORE, 57M+ open access papers). Free key from core.ac.uk/services/api. Secret.
COURTLISTENER_API_KEY	No	Unlocks the courtlistener source (US federal and state court opinions). Free key from courtlistener.com. Secret.
GOVINFO_API_KEY	No	Unlocks govinfo (Congressional Record, Federal Register, US Code); also accepted by congress and regulations. Free key from api.data.gov. Secret.
GOOGLE_BOOKS_API_KEY	No	Unlocks the googlebooks source (40M+ books). Free key from the Google Cloud Console (Books API). Secret.
GITHUB_TOKEN	No	Unlocks githubsearch and githubmcp (GitHub code search); optional for ghsa and openiti. Public-repo read scope is enough. Secret.
NASA_ADS_API_KEY	No	Unlocks the nasaads source (NASA Astrophysics Data System). Free key from ui.adsabs.harvard.edu. Secret.
EUROPEANA_API_KEY	No	Unlocks the europeana source (50M+ European cultural heritage items). Free key from apis.europeana.eu. Secret.
SEMANTIC_SCHOLAR_API_KEY	No	Optional for semanticscholar and library_recommend; raises the rate limit. Free key from semanticscholar.org/product/api. Secret.

Alexandria MCP Server

Install

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