Carrot MCP

A collection of MCP (Model Context Protocol) servers for various hardware and data interfaces.

Installation

pip

pip install carrot-mcp

This installs all MCP servers (pdf, io, nfc, office) by default.

uv

uv pip install carrot-mcp

Install specific servers only

# pip or uv
pip install carrot-mcp[pdf]
pip install carrot-mcp[io]
pip install carrot-mcp[nfc]
pip install carrot-mcp[office]

Or install sub-packages directly

pip install carrot-mcp-pdf
pip install carrot-mcp-io
pip install carrot-mcp-nfc
pip install carrot-mcp-office

Quick Start

uvx (recommended)

# Run a specific server directly (no install needed)
uvx carrot-mcp-pdf@latest
uvx carrot-mcp-io@latest
uvx carrot-mcp-nfc@latest
uvx carrot-mcp-office@latest

CLI

# List all available servers
carrot-mcp list

# Run a specific server
carrot-mcp pdf
carrot-mcp io
carrot-mcp nfc
carrot-mcp office

# Run with uv
uv run carrot-mcp office

Python module

python -m carrot_mcp_pdf
python -m carrot_mcp_io
python -m carrot_mcp_nfc
python -m carrot_mcp_office

Available Servers

Server	Package	Category	Description
PDF	`carrot-mcp-pdf`	Document	PDF processing
Office	`carrot-mcp-office`	Document	Excel & Word automation with auto-backup
IO	`carrot-mcp-io`	Hardware	Serial, TCP, UDP communication
NFC	`carrot-mcp-nfc`	Hardware	NFC reader (PN532, CLRC663)

Document Servers

PDF MCP Tools

Tool	Description
`version`	Get server version info

Office MCP Tools

Excel Tools

Tool	Description
`workbook_metadata`	Get workbook metadata (sheet names, properties)
`workbook_search`	Search for values in a sheet
`create_sheet`	Create a new sheet (creates workbook if needed)
`rename_sheet`	Rename a sheet
`delete_sheet`	Delete a sheet
`insert_rows`	Insert rows into a sheet
`delete_rows`	Delete rows from a sheet
`insert_columns`	Insert columns into a sheet
`delete_columns`	Delete columns from a sheet
`read_range`	Read cell values from a range
`write_range`	Write a 2D array to a range (supports formulas)
`copy_range`	Copy a range to another location
`delete_range`	Clear cell contents in a range
`read_chart`	Read chart information from a sheet
`write_chart`	Create a chart (bar, line, pie, scatter)
`format_range`	Format cells (font, color, alignment, merge/unmerge)

Word Tools

Tool	Description
`inspect`	Inspect document structure (paragraphs, tables, images)
`insert_para`	Insert a paragraph
`modify_para`	Modify paragraph text
`format_para`	Format a paragraph (style, alignment, font)
`delete_para`	Delete a paragraph
`insert_table`	Insert a table with optional data
`modify_table`	Modify a table cell
`format_table`	Apply a table style
`delete_table`	Delete a table
`insert_image`	Insert an image
`delete_image`	Delete an inline image

Backup Tools

Tool	Description
`backup_history`	List all backup versions of a file
`backup_restore`	Restore a file to a specific backup version

Features:

Auto-backup: All modifications are automatically versioned
Legacy format support: .doc → .docx, .xls → .xlsx via win32com (Windows)
100 version limit with 14-day expiry per file

Hardware Servers

IO MCP Tools

Tool	Description
`version`	Get server version info
`list_transports`	List available transport types and serial ports
`open`	Open a connection (serial, tcp, udp)
`close`	Close a connection
`read`	Blocking read from buffer with timeout
`recv`	Non-blocking read from buffer
`write`	Write data (hex or ascii with escape support)
`script`	Execute a sequence of I/O operations (write/read/wait/flush)
`history`	Get operation history for a connection

NFC MCP Tools

Tool	Description
`version`	Get server version info
`list_readers`	List available reader types and transports
`connect`	Connect to NFC reader
`disconnect`	Disconnect from reader
`find`	Find and activate an NFC card
`transceive`	Raw frame exchange with bit-level control
`exchange`	Data exchange with auto CRC
`reqa`	ISO14443-A REQA
`wupa`	ISO14443-A WUPA
`halt`	ISO14443-A HALT
`select`	ISO14443-A SELECT
`anticoll`	ISO14443-A anti-collision
`field_on`	Turn on RF field
`field_off`	Turn off RF field
`script`	Execute a sequence of NFC operations
`trace_get`	Get trace log entries
`trace_clear`	Clear trace log buffer

MCP Configuration

Add to your MCP client config (e.g., Claude Desktop):

{
  "mcpServers": {
    "carrot-pdf": {
      "command": "uvx",
      "args": ["carrot-mcp-pdf@latest"]
    },
    "carrot-office": {
      "command": "uvx",
      "args": ["carrot-mcp-office@latest"]
    },
    "carrot-io": {
      "command": "uvx",
      "args": ["carrot-mcp-io@latest"]
    },
    "carrot-nfc": {
      "command": "uvx",
      "args": ["carrot-mcp-nfc@latest"]
    }
  }
}

Development

# Clone and setup
git clone <repo-url>
cd carrot-mcp
uv sync --all-packages

# Run tests
uv run pytest

# Run tests for specific server
uv run pytest tests/office/ -v
uv run pytest tests/io/ -v

# Bump version and release
bump.bat                        # interactive
bump.bat carrot-mcp-office      # direct package

License

Apache License 2.0 - see LICENSE for details.

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