Alexandria

io.github.The-40-Thieves/alexandria-mcpv11.0.0Search

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

The current version, v11.0.0, was published to the official MCP registry on 2026-09-05. It is distributed as @the-40-thieves/alexandria-mcp on npm, filed under Search by this index, and declares 11 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.

In-path gate · all MCP tools

Using Alexandria in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

NOT YET SCREENEDno verdict on file

Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-09-05).

Contracts can change after screening, with no version bump. The gate pins Alexandria’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Environment variables

OPENAI_API_KEY

secret

OpenAI key for routing (library_ask), synthesis (library_answer, library_research), and embeddings (library_ingest). Search and read tools work without it.

ALEXANDRIA_BASE_URL

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

secret

API key paired with ALEXANDRIA_BASE_URL. Falls back to OPENAI_API_KEY.

CORE_API_KEY

secret

Unlocks the core source (CORE, 57M+ open access papers). Free key from core.ac.uk/services/api.

COURTLISTENER_API_KEY

secret

Unlocks the courtlistener source (US federal and state court opinions). Free key from courtlistener.com.

GOVINFO_API_KEY

secret

Unlocks govinfo (Congressional Record, Federal Register, US Code); also accepted by congress and regulations. Free key from api.data.gov.

GOOGLE_BOOKS_API_KEY

secret

Unlocks the googlebooks source (40M+ books). Free key from the Google Cloud Console (Books API).

GITHUB_TOKEN

secret

Unlocks githubsearch and githubmcp (GitHub code search); optional for ghsa and openiti. Public-repo read scope is enough.

NASA_ADS_API_KEY

secret

Unlocks the nasaads source (NASA Astrophysics Data System). Free key from ui.adsabs.harvard.edu.

EUROPEANA_API_KEY

secret

Unlocks the europeana source (50M+ European cultural heritage items). Free key from apis.europeana.eu.

SEMANTIC_SCHOLAR_API_KEY

secret

Optional for semanticscholar and library_recommend; raises the rate limit. Free key from semanticscholar.org/product/api.

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

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Obsidian Turbocharged

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Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "alexandria-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "@the-40-thieves/alexandria-mcp"
      ],
      "env": {
        "OPENAI_API_KEY": "<your-openai_api_key>",
        "ALEXANDRIA_BASE_URL": "<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>"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "alexandria-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "@the-40-thieves/alexandria-mcp"
      ],
      "env": {
        "OPENAI_API_KEY": "<your-openai_api_key>",
        "ALEXANDRIA_BASE_URL": "<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>"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y -- @the-40-thieves/alexandria-mcp

Claude Code (claude mcp add)

claude mcp add --scope user alexandria-mcp -- npx -y -- @the-40-thieves/alexandria-mcp

Gemini CLI (gemini mcp add)

gemini mcp add -s user alexandria-mcp npx -y -- @the-40-thieves/alexandria-mcp

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-the-40-thieves-alexandria-mcp

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v11.0.0
category: Search
quality: 90 / 100
operator: The-40-Thieves

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 965,566). Verify it yourself.

Links

Repository →