Document Understanding MCP Server

Name: Document Understanding MCP Server
Author: jaesharp

@jaesharp

Document Understanding MCP Server について

A document reading, search, and metadata server to provide access to PDFs (and, in the future, other formats) to LLMs via the Model Context Protocol (MCP)

基本情報

カテゴリ

その他

ライセンス

MIT

ランタイム

python

トランスポート

stdio

公開者

jaesharp

設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "document-understanding-mcp-server": {
      "command": "uv",
      "args": [
        "venv",
        "#",
        "Create",
        ".venv"
      ]
    }
  }
}

ツール

ツールは検出されませんでした

ツールは README から自動的に抽出されます。メンテナーは ## Tools という見出しの下に記載することで、このタブに反映できます。

概要

What is Document Understanding MCP Server?

A Model Context Protocol (MCP) server that provides tools for extracting text, metadata, layout, tables, and images from PDF documents, with OCR fallback for scanned pages. It is currently in alpha stage and intended for local development and testing only.

How to use Document Understanding MCP Server?

Install Python 3.11+, uv, sync dependencies from pyproject.toml, and install Java (for table extraction) and Tesseract (for OCR). Set the required environment variable DOCUMENT_UNDERSTANDING_BASE_PATH to the directory the server may read PDFs from. The server offers tools that AI models can invoke via the MCP interface.

Key features of Document Understanding MCP Server

Extracts text content with automatic OCR fallback for scanned pages
Retrieves PDF metadata (author, title, dates)
Provides detailed layout info (text blocks, images, drawings with coordinates)
Extracts tables from PDF pages using tabula-py
Searches for exact text occurrences and returns bounding boxes
Detects languages of extracted text content

Use cases of Document Understanding MCP Server

Analyze scanned invoices or contracts for data extraction
Search for specific terms across large PDF documents
Understand page structure and spatial relationships in PDFs
Extract tables from financial reports or scientific papers

FAQ from Document Understanding MCP Server

Does the server require Java or Tesseract?

Yes, table extraction requires a Java Runtime Environment (JRE). The OCR fallback for scanned pages requires Tesseract OCR. The server will refuse to start if either is missing, unless you use --allow-no-java or --allow-no-tesseract flags.

What is the `DOCUMENT_UNDERSTANDING_BASE_PATH` environment variable?

It is the absolute path to the directory the server is allowed to read PDFs from. The server will not start without this variable, unless the --allow-any-path security risk flag is used.

Is this server ready for production use?

No. The README explicitly warns it is in alpha stage and should not be deployed in production or exposed to untrusted networks.

Can the server handle encrypted PDFs?

Yes, several tools accept an optional password argument to open encrypted PDFs.

How can I enable experimental tools?

Use the --enable-experimental command-line flag at startup to enable tools like find_nearby_content.

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