MMEX MCP Server

MCP (Model Context Protocol) Server for interacting with Money Manager EX databases.

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🌐 Documentación en Español (Spanish)

Toda la documentación detallada y guías en español están disponibles en: 👉 README_es.md

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Requirements

• Python 3.10+
• A Money Manager EX database file (.mmb)

Installation

You can install the server directly from PyPI:

pip install mmex-mcp

Or using uv (recommended):

uv tool install mmex-mcp

Configuration

Set the MMEX_DB_PATH environment variable to point to your database:

export MMEX_DB_PATH=/path/to/your/database.mmb

For encrypted databases, also set MMEX_DB_KEY:

export MMEX_DB_KEY=your_password

Using with MCP Clients

OpenCode

{
    "mcp": {
        "mmex-mcp": {
            "enabled": true,
            "type": "local",
            "command": [
                "mmex-mcp"
            ],
            "environment": {
                "MMEX_DB_PATH": "/path/to/your/database.mmb"// Optional
            }
        }
    }
}

Claude Desktop

Since mmex-mcp is installed as a system package or via uv tool, you can configure Claude Desktop to use it directly.

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):

{
  "mcpServers": {
    "mmex-mcp": {
      "command": "mmex-mcp",
      "env": {
        "MMEX_DB_PATH": "/path/to/your/database.mmb"//Optional
      }
    }
  }
}

Other MCP Clients

For clients that support stdio MCP servers:

MMEX_DB_PATH=/path/to/file.mmb mmex-mcp

Testing

Using MCP Inspector (Recommended)

The MCP Inspector provides a web UI to test all tools interactively:

MMEX_DB_PATH=/path/to/file.mmb npx @modelcontextprotocol/inspector mmex-mcp

This will:

1. Start the MCP server
2. Launch the MCP Inspector web UI
3. Open your browser at the provided localhost URL.

Available Tools

Category	Tools
Support	mmex_support_get_db_version
Currencies	mmex_currencies_list, mmex_currencies_get, mmex_currencies_by_symbol, mmex_currencies_create, mmex_currencies_update, mmex_currencies_delete
Tags	mmex_tags_list, mmex_tags_get, mmex_tags_create, mmex_tags_update, mmex_tags_delete, mmex_tags_for_reference, mmex_tags_link, mmex_tags_unlink
Categories	mmex_categories_list, mmex_categories_get, mmex_categories_subcategories, mmex_categories_create, mmex_categories_update, mmex_categories_delete
Payees	mmex_payees_list, mmex_payees_get, mmex_payees_create, mmex_payees_update, mmex_payees_delete
Accounts	mmex_accounts_list, mmex_accounts_get, mmex_accounts_balance, mmex_accounts_create, mmex_accounts_update, mmex_accounts_update_partial, mmex_accounts_delete
Assets	mmex_assets_list, mmex_assets_get, mmex_assets_create, mmex_assets_update, mmex_assets_delete
Stocks	mmex_stocks_list, mmex_stocks_get, mmex_stocks_create, mmex_stocks_update, mmex_stocks_delete
Transactions	mmex_transactions_list, mmex_transactions_get, mmex_transactions_create, mmex_transactions_update, mmex_transactions_delete, mmex_transactions_splits, mmex_transactions_add_split, mmex_transactions_update_split, mmex_transactions_delete_split, mmex_transactions_tags, mmex_transactions_link_tag, mmex_transactions_unlink_tag
Scheduled	mmex_scheduled_list, mmex_scheduled_get, mmex_scheduled_create, mmex_scheduled_update, mmex_scheduled_delete

Total: 60 tools

Documentation

See docs/ for detailed documentation:

• docs/README.md - Overview
• docs/design.md - Technical design
• docs/implementation-plan.md - Implementation details
• docs/README_es.md - Visión General (Español)
• docs/design_es.md - Diseño Técnico (Español)
• docs/implementation-plan_es.md - Plan de Implementación (Español)

Development

If you want to contribute or build from source:

git clone https://github.com/PatricioRios/mmex_mcp
cd mmex_mcp
uv sync
MMEX_DB_PATH=/path/to/file.mmb uv run mcp dev src/mmex_mcp/server.py