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LunchMoney MCP Server

by akutishevsky
MIT License
5
4
  • Apple
  • Linux

LunchMoney MCP Server

A Model Context Protocol (MCP) server implementation for LunchMoney, providing programmatic access to personal finance management through LunchMoney's API. Also available as a Desktop Extension Tool (DXT) for easy installation in Claude Desktop.

Overview

This MCP server enables AI assistants and other MCP clients to interact with LunchMoney data, allowing for automated financial insights, transaction management, budgeting, and more.

Features

Comprehensive Tool Coverage

  • User Management - Access user account details

  • Categories - Create, update, and organize spending categories

  • Tags - Manage transaction tags

  • Transactions - Full CRUD operations on transactions with advanced filtering

  • Recurring Items - Track and manage recurring expenses

  • Budgets - Create and monitor budgets by category

  • Assets - Track manually-managed assets

  • Plaid Accounts - Manage connected bank accounts

  • Cryptocurrency - Track crypto holdings

Key Capabilities

  • Full integration with LunchMoney API v1

  • Type-safe implementation with TypeScript and Zod validation

  • Modular architecture for easy extension

  • Standard MCP server implementation using stdio transport

Usage

Installation Options

Option 1: Desktop Extension Tool (DXT) - Recommended

The easiest way to install this server is as a Desktop Extension Tool in Claude Desktop:

  1. Download the latest .dxt file from the releases page

  2. Open Claude Desktop and go to Extensions

  3. Click "Install Extension" and select the downloaded .dxt file

  4. Enter your LunchMoney API token when prompted (get it from LunchMoney Developer Settings)

  5. The LunchMoney tools will be immediately available

Option 2: Manual MCP Configuration

To use this MCP server with any MCP-compatible client (such as Claude Desktop), you need to add it to the client's configuration.

Configuration

The server can be configured in your MCP client's configuration file. The exact location and format may vary by client, but typically follows this pattern:

{ "mcpServers": { "lunchmoney": { "command": "npx", "args": ["@akutishevsky/lunchmoney-mcp"], "env": { "LUNCHMONEY_API_TOKEN": "your-api-token-here" } } } }

Replace "your-api-token-here" with your actual LunchMoney API token from LunchMoney Developer Settings.

Common MCP Client Configuration Locations

Different MCP clients store their configuration in different locations:

  • Claude Desktop:

    • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

    • Windows: %APPDATA%\Claude\claude_desktop_config.json

    • Linux: ~/.config/Claude/claude_desktop_config.json

  • Other MCP Clients: Check your client's documentation for the configuration file location.

Setup Steps

  1. Locate your MCP client's configuration file (create it if it doesn't exist).

  2. Add the LunchMoney server configuration to the mcpServers section.

  3. Save the file and restart your MCP client.

  4. The LunchMoney tools should now be available in your client.

Requirements

  • Node.js 16+ installed on your system

  • npx available in your system PATH

  • Valid LunchMoney API token with appropriate permissions

As a standalone MCP server

# Run with npx LUNCHMONEY_API_TOKEN="your-api-token" npx @akutishevsky/lunchmoney-mcp

Example Prompts

Here are some example prompts you can use with the LunchMoney MCP server:

Account Overview

  • "Show me my LunchMoney account details"

  • "What's my current account status?"

Category Management

  • "List all my spending categories"

  • "Create a new category called 'Subscriptions' with a monthly budget of $100"

  • "Show me details for my 'Food & Dining' category"

  • "Create a category group for all my entertainment expenses"

  • "Delete the 'Unused Category' and reassign its transactions to 'Miscellaneous'"

Transaction Management

  • "Show me all transactions from last month"

  • "Find all transactions over $100 in the past week"

  • "Create a new expense for $45.99 at Amazon in the Shopping category"

  • "Update transaction #12345 to change the amount to $50"

  • "Show me all pending transactions"

  • "Group these coffee shop transactions together"

Budgeting

  • "Show me my budget summary for this month"

  • "Set a budget of $500 for Groceries this month"

  • "Remove the budget for Entertainment category"

  • "How much have I spent vs budgeted in each category?"

Asset Tracking

  • "List all my assets"

  • "Create a new asset for my savings account with a balance of $10,000"

  • "Update my investment account balance to $25,000"

Recurring Expenses

  • "Show me all my recurring expenses"

  • "What subscriptions do I have?"

  • "List recurring items for the next 3 months"

Banking Integration

  • "Show me all my connected Plaid accounts"

  • "Refresh my bank account data"

  • "Trigger a sync for my checking account"

Cryptocurrency

  • "Show me all my crypto holdings"

  • "Update my Bitcoin balance to 0.5 BTC"

  • "List all my manually tracked crypto assets"

Analysis & Insights

  • "What are my top spending categories this month?"

  • "Show me all transactions tagged as 'vacation'"

  • "Find all transactions at coffee shops"

  • "List all transactions that need to be categorized"

Available Tools

User Tools

  • get_user - Retrieve current user details

Category Tools

  • get_all_categories - List all spending categories

  • get_single_category - Get details for a specific category

  • create_category - Create a new category

  • create_category_group - Create a category group

  • update_category - Update category properties

  • add_to_category_group - Add categories to a group

  • delete_category - Delete a category

  • force_delete_category - Force delete with data cleanup

Tag Tools

  • get_all_tags - List all available tags

Transaction Tools

  • get_transactions - List transactions with extensive filtering options

  • get_single_transaction - Get detailed transaction information

  • create_transactions - Create new transactions

  • update_transaction - Update existing transaction

  • unsplit_transactions - Remove transactions from split groups

  • get_transaction_group - Get transaction group details

  • create_transaction_group - Create a transaction group

  • delete_transaction_group - Delete a transaction group

Recurring Items Tools

  • get_recurring_items - List recurring items for a date range

Budget Tools

  • get_budget_summary - Get budget summary by date range

  • upsert_budget - Create or update budget amounts

  • remove_budget - Remove budget for a category

Asset Tools

  • get_all_assets - List all manually-managed assets

  • create_asset - Create a new asset

  • update_asset - Update asset properties

Plaid Account Tools

  • get_all_plaid_accounts - List all connected Plaid accounts

  • trigger_plaid_fetch - Trigger fetch of latest data from Plaid

Crypto Tools

  • get_all_crypto - List all cryptocurrency assets

  • update_manual_crypto - Update balance for manually-managed crypto

Development

Project Structure

lunchmoney-mcp/ ├── src/ │ ├── index.ts # Server entry point │ ├── config.ts # Configuration management │ ├── types.ts # TypeScript type definitions │ └── tools/ # Tool implementations │ ├── user.ts │ ├── categories.ts │ ├── tags.ts │ ├── transactions.ts │ ├── recurring-items.ts │ ├── budgets.ts │ ├── assets.ts │ ├── plaid-accounts.ts │ └── crypto.ts ├── build/ # Compiled JavaScript output ├── package.json ├── tsconfig.json └── README.md

Building

# Build the MCP server npm run build # Build DXT package for distribution npm run build:dxt

Adding New Tools

  1. Create a new file in src/tools/

  2. Implement tool handlers using the MCP SDK

  3. Register tools in src/index.ts

  4. Add types to src/types.ts if needed

API Reference

The server implements the full LunchMoney API v1. For detailed API documentation, see:

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT License

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