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Exstruct

Exstruct is an MCP server that adds productivity tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Conversion from Excel to structured JSON (tables, shapes, charts) for LLM/RAG pipelines, and autonomous Excel reading/writing by AI agents via CLI… It has 201 GitHub stars, is released under the BSD-3-Clause license and runs locally with uvx exstruct.

github.com/harumiWeb/exstruct (opens in a new tab)

View on GitHub (opens in a new tab)

Install Exstruct

Generated from the server's published package. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "exstruct": {
      "command": "uvx",
      "args": [
        "exstruct"
      ]
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --transport stdio exstruct -- uvx exstruct

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "exstruct": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "exstruct"
      ]
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "servers": {
    "exstruct": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "exstruct"
      ]
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

About Exstruct

ExStruct reads Excel workbooks into structured data and applies patch-based editing workflows through a shared core. It provides extraction APIs, a JSON-first editing CLI, and an MCP server for host-managed integrations, with options tuned for LLM/RAG preprocessing, reviewable edit flows, and local automation.

  • data-ex
  • excel
  • llm
  • rag
  • structured-data
  • document-ai
  • excel-automation
  • excel-parsing
  • python-library
  • xlwings

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FAQ

Exstruct FAQ

Still curious? Email info@appsgit.com.

What is Exstruct?

Exstruct is an MCP server that adds productivity tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Conversion from Excel to structured JSON (tables, shapes, charts) for LLM/RAG pipelines, and autonomous Excel reading/writing by AI agents via CLI… It has 201 GitHub stars, is released under the BSD-3-Clause license and runs locally with uvx exstruct. The source code is at github.com/harumiWeb/exstruct.

How do I install the Exstruct MCP server?

Add the command uvx exstruct to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is Exstruct free?

The server is open source under the BSD-3-Clause license, so running it is free. It does not declare any required API key.

Is Exstruct actively maintained?

The most recent commit was on Oct 4, 2026. The latest release is v0.9.0, published Oct 4, 2026. appsgit only lists MCP servers with a commit in the last six months and re-checks every server daily.