Terobyte/librarian-cli

Overview

A Python CLI that converts ebooks into clean, token-counted Markdown chapters. It lets Claude read books over MCP and uses deterministic RAG with no embeddings, network, or API keys. Designed to catch misquotations by Claude.

Best for

Best for
Developers who want a deterministic, offline way to feed ebooks to Claude via MCP.

Use cases

• Convert ebooks to Markdown chapters for LLM ingestion
• Expose a bookshelf to Claude via MCP
• Run deterministic retrieval without embeddings or external services

How to use

Install

claude mcp add librarian --env LIB_HOME=$HOME/books -- uvx librarian-cli

Tools exposed

• not_found

Clients listed in this record (not verified here)

Claude Desktop, Claude Code

Example client config

{
  "mcpServers": {
    "librarian": {
      "command": "uvx",
      "args": [
        "librarian-cli"
      ],
      "env": {
        "LIB_HOME": "/path/to/books"
      }
    }
  }
}

Notes