Librarian MCP Server
by SegaraRai
Librarian is a Model Context Protocol (MCP) server that provides an API for listing, searching, and retrieving markdown files stored in a structured manner. It serves as a knowledge base for Large Language Models (LLMs), providing them with the information they need on demand.
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What is Librarian MCP Server?
Librarian is a read-only Model Context Protocol (MCP) server designed to efficiently deliver structured document content to Large Language Models (LLMs). It provides an API for listing, searching, and retrieving markdown files, acting as a knowledge base.
How to use Librarian MCP Server?
To use Librarian, you need to install it using Node.js and npm or pnpm. Configure the document folder path using command-line arguments or environment variables. Then, you can use the provided API endpoints (getDocuments, getDocument, listDocuments, searchDocuments, listTags) to interact with the server and retrieve information. The server is designed to integrate with LLMs through the MCP framework.
Key features of Librarian MCP Server
Structured Document Organization
Tag-Based Filtering
Hierarchical Tag Inheritance
Flexible Search Capabilities (string and regex)
Efficient Document Retrieval
Tag Discovery
MCP Integration
Use cases of Librarian MCP Server
Providing context to LLMs for generating responses
Building a knowledge base for LLMs
Searching for specific information within a collection of documents
Retrieving documentation on demand
FAQ from Librarian MCP Server
How do I configure the document folder?
How do I configure the document folder?
You can configure the document folder path using command-line arguments (e.g., node dist/bin.js --docs-root /path/to/your/docs) or environment variables (e.g., LIBRARIAN_DOCS_ROOT=/path/to/your/docs node dist/bin.js).
How does tag inheritance work?
How does tag inheritance work?
A document inherits all tags from index.md files in its parent directories. Tags are merged from the most general (root) to the most specific (document).
What search modes are available?
What search modes are available?
Librarian supports both simple string searches (case insensitive) and regular expression searches with customizable flags.
What error responses does Librarian provide?
What error responses does Librarian provide?
Librarian uses standard MCP error responses with appropriate error codes and messages, including INVALID_ARGUMENT, NOT_FOUND, and INTERNAL.
How can I contribute to the project?
How can I contribute to the project?
Contributions are welcome! Please feel free to submit a Pull Request.