mineru-open-mcp 1.0.21

MinerU MCP Server for PDF to Markdown conversion

MinerU Open MCP

An Official Mineru MCP server that exposes MinerU's document parsing as MCP tools. Connect any MCP-compatible AI client to convert PDFs, Word docs, PowerPoint files, and images into Markdown.

No API key required — Flash mode works out of the box, free with no sign-up, for files up to 20 pages / 10 MB. Set MINERU_API_TOKEN to unlock higher limits and extra output formats.

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⚡ Quickest Way to Run — uvx (no install needed)

mineru-open-mcp is on PyPI. With uv installed, you can run it directly — no separate install step.

Configure your MCP client

stdio — Claude Desktop, Cursor, Windsurf

The MCP client launches mineru-open-mcp as a subprocess automatically.

Using uvx (recommended — always runs the latest version):

{
  "mcpServers": {
    "mineru": {
      "command": "uvx",
      "args": ["mineru-open-mcp"],
      "env": {
        "MINERU_API_TOKEN": "your_key_here"
      }
    }
  }
}

No API key? The server runs in Flash mode — free, markdown-only, learn more at Flash Mode Docs

mineru-open-mcp not on PATH? Use the full path: "/Users/you/.local/bin/mineru-open-mcp", or use the uvx approach above which handles this automatically.

Usage Examples

Example 1: Parse a local PDF document with target page ranges

User prompt: "Parse the 3rd-5th pages of this PDF into markdown: <your_path_to_file>" What happens:

• MinerU uploads and parses the PDF
• Returns clean Markdown with tables (HTML) and formulas (Latex) preserved
• Returns markdown texts in the chat if length permitted along with the output path, and the zip url if you prefer
• MCP client summarizes the content

Example 2: Parse a remote url hosting a file

User prompt: "Extract contents from this paper: https://arxiv.org/pdf/2509.22186" What happens:

• MinerU parses the paper into markdown
• MCP client formats and explains the tables

Example 3: Parse local PDF files with independent page ranges

User prompt: "Parse <file1> page 1-5, <file2> page 2-9, <file3> page 3 into markdown" What happens:

• MinerU uploads and parses the files separatedly
• Returns target format ouputs, the zip url for you to download, markdown abstract, the directory you want to save the output to
• MCP client uses the content for further analysis

Example 4: Advanced custom preferences

User prompt1: "use pipeline model to parse this Korean file your_path_here" User prompt2: "parse your_path_here and save the markdown to your_output_dir" What happends:

• Pipeline model is another model provided by MinerU service (BTW, vlm model is the default choice)
• You are allowed to specify a model, an ocr language, or even an independent output dir different from OUTPUT_DIR by structuring your prompt
• Your requests are parameterized into parse_documents tool and MinerU will handle the rest.

streamable-http — web-based MCP clients

Start the server manually, then point your client at it:

MINERU_API_TOKEN=your_key mineru-open-mcp --transport streamable-http --port 8001

{
  "mcpServers": {
    "mineru": {
      "type": "streamableHttp",
      "url": "http://127.0.0.1:8001/mcp"
    }
  }
}

Features

• parse_documents ? convert local files and/or remote URLs to Markdown; Input supports PDF, images（png/jpg/jpeg/jp2/webp/gif/bmp, Doc, Docx, Ppt, PPTx. Flash Mode also supports xlsx.
• get_ocr_languages — list all OCR languages supported by MinerU
• Flash mode — works without an API key (free, markdown output only, supports PDF/images/Docx/PPTx/xls/xlsx); For full features, please provide MINERU_API_TOKEN, which will disable flash mode.
• Output behavior ? single-file parses return inline Markdown by default; batch parses save results to disk and return file metadata. Oversized inline content is also saved locally and returned via extract_path.
• Two transport modes ? stdio, streamable-http

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Environment Variables

Variable	Description	Default
MINERU_API_TOKEN	MinerU API token, apply on MinerU for full capability. If not provided, flash mode is enabled.	—
OUTPUT_DIR	Directory used when parsed results need to be saved locally, such as batch parsing or oversized inline content	~/mineru-downloads

Privacy Policy

mineru-open-mcp connects to the official MinerU API (mineru.net) to parse documents.

• Data sent: Document content (files or URLs you provide for parsing)
• Data storage: Parsed results are temporarily cached by MinerU servers; not used for training
• Third-party: MinerU API (mineru.net) — see MinerU Privacy Policy
• Local data: Parsed results will be saved to target output directory. Log files (only when ENABLE_LOG=true), saved to MINERU_LOG_DIR;
• Contact: [e-mail] (or raise an issue at MinerU-Ecosystem )