Calibre Librarian MCP Server

Surfaces your Calibre e-book catalog to Claude via the Model Context Protocol, enabling search, metadata management, and library maintenance through natural language.

→ chepetime/calibre-librarian-mcp · listed on glama

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// key findings

🚨

Known vulnerabilities in dependencies: 1 critical, 1 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

// known CVEs in dependencies1 critical1 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalvitest@4.0.17GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

high@modelcontextprotocol/sdk@1.25.3GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

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// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configCALIBRE_COMMAND_TIMEOUT_MS— No 15000 Timeout for calibredb commands in milliseconds

configCALIBRE_DB_COMMAND— location of the calibredb executable (e.g., /opt/homebrew/bin/calibredb).

configCALIBRE_ENABLE_WRITE_OPERATIONS— Note: Remove :ro from the volume mount and add -e =true to enable write operations.

configCALIBRE_LIBRARY_PATH— absolute path to your Calibre library directory.

configFAVORITE_SEARCH_ENGINE_URL— base URL used when the server offers external book lookups (defaults to DuckDuckGo: https://duckduckgo.com/?q=).

configMCP_SERVER_NAME— No Calibre Librarian MCP Server name shown in MCP clients

configXDG_CONFIG_HOME

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 3 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/chepetime-calibre-librarian-mcp-1rlraj)](https://m8ven.ai/mcp/chepetime-calibre-librarian-mcp-1rlraj)

commit: 27a2864854662a2b9c07c3835dc6a7793341701a

code hash: accdbb0bdbd1639beed56d8d0f4b82728c2099b68968609ec05d9bf59af5492c

verified: 6/15/2026, 2:12:18 PM

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