Lunch Money MCP Server

<div align="center"> # PRD <br/> Lunch Money MCP Server _Executive summary: what we're building and why - scannable by VP level for business context and decision making_ </div> --- ## Table of Contents - [📋 Context & Opportunity](#context--opportunity) - [User & Context](#user--context) - [What problem are we solving?](#what-problem-are-we-solving) - [Why now?](#why-now) - [🎯 Solution & Scope](#solution--scope) - [What are we building?](#what-are-we-building) - [What does success look like?](#what-does-success-look-like) - [Anti-Goals (What we're NOT building)](#anti-goals-what-were-not-building) - [Key Assumptions & Risks](#key-assumptions--risks) - [⚡ Execution](#execution) - [How does it work?](#how-does-it-work) --- ## 📋 Context & Opportunity ### User & Context Money MCP Server _Executive summary: what we're building and why - scannable by VP level for business context and decision making_ </div> --- ## Table of Contents - [📋 Context & Opportunity](#context--opportunity) - [User & Context](#user--context) - [What problem are we solving?](#what-problem-are-we-solving) - [Why now?](#why-now) ### What problem are we solving?on--scope) - [What are we building?](#what-are-we-building) - [What does success look like?](#what-does-success-look-like) - [Anti-Goals (What we're NOT building)](#anti-goals-what-were-not-building) - [Key Assumptions & Risks](#key-assumptions--risks) - [⚡ Execution](#execution) ### Why now? MCP protocol adoption is accelerating with Cursor and Claude Pro native support, making chat-based financial tools accessible to the growing developer community already using Lunch Money for personal finance tracking. ## 🎯 Solution & Scope ### What are we building? A Model Context Protocol (MCP) server that connects to the Lunch Money API through standard I/O, enabling instant natural language financial analysis within any MCP-compatible chat client. ### What does success look like?es-it-work) --- ] **1.** Reduce time to get spending insights from 15+ minutes to under 30 seconds ## 📋 Context & Opportunity ### User & Context response time under 2 seconds for all financial calculations ### Anti-Goals (What we're NOT building) - NOT building budget modification or expense creation capabilities - NOT building expense categorization or transaction editing features - NOT supporting bulk transaction imports or data exports - NOT creating a standalone financial analysis dashboard ### Key Assumptions & Risks 1. **Biggest Risk:** Lunch Money API rate limits could prevent real-time queries for active users 2. **User Assumption:** Users will adopt chat-based financial queries over familiar web UI navigation ### What problem are we solving? standard I/O can reliably handle complex financial data parsing and categorization ## ⚡ Executionaude Pro native support, making chat-based financial tools accessible to the growing ### How does it work?already using Lunch Money for personal finance tracking. ## 🎯 Solution & Scope ### What are we building? A Model Context Protocol (MCP) server that connects to the Lunch Money API through standard I/O, enabling instant natural language financial analysis within any MCP-compatible chat client. ### What does success look like?d I spend on food last month?" - **Then** server queries transactions, intelligently groups food-related categories, and returns total with breakdown - **When** they ask "What's my average electricity bill for 6 months?" - **Then** server analyzes utility transactions and calculates precise monthly average **Smart Category Intelligence** ### Anti-Goals (What we're NOT building) - **Given** broad category queries like "food" or "transportation" - NOT building budget modification or expense creation capabilities - NOT building expense categorization or transaction editing features - NOT supporting bulk transaction imports or data exports ## Why now? MCP protocol adoption is accelerating with Cursor and Claude Pro native support, making chat-based financial tools accessible to the growing ## ⚡ Executionunity already using Lunch Money for personal finance tracking. ## How does it work?### How does it work?