💰 Expense Tracker MCP

🤖 AI-Powered Expense Management using Model Context Protocol

📌 Overview

Expense Tracker MCP is an AI-powered financial management system built usingModel Context Protocol (MCP ).

The system allows Large Language Models to interact with expense data throughMCP tools, enabling users to:

• Add expenses

• Search expenses

• Analyze spending patterns

• Generate financial insights

• Communicate with expense data using natural language

🧠 MCP Architecture

flowchart TB


USER["👤 User"]

CLIENT["🔌 MCP Client"]

SERVER["⚡ FastMCP Server"]

TOOLS["🛠 MCP Tools"]

FASTAPI["🚀 FastAPI Application"]

MONGO["🍃 MongoDB Database"]



USER --> CLIENT

CLIENT --> SERVER

SERVER --> TOOLS

TOOLS --> FASTAPI

FASTAPI --> MONGO

🚀 Key Features

💸 Expense Management✅ Create expenses✅ Update expenses✅ Delete expenses✅ Retrieve expense records✅ Store financial history

🔌 Model Context Protocol

This project implements MCP architecture:

User|MCP Client|FastMCP Server|Expense Tools|MongoDB

Related MCP server: Splitwise MCP Server

🛠️ Technology Stack

###🐍 Core Development

⚡ MCP Framework

🚀 Backend

🍃 Database

📦 Validation & Configuration

Pydantic v2Pydantic SettingsEnvironment Variablespython-dotenv

📂 Project Structure

Expense_Tracker/
│
├── app/
│   └── db/
│       ├── database.py       # MongoDB connection configurations & client initialization
│       └── application.py    # Core FastAPI application routing and logic
│
├── mcp/
│   ├── mcp_client.py         # MCP Client implementation for context bridging
│   └── mcp_server.py         # FastMCP Server registering the operational tools
│
├── .env                      # Local environment variable configuration
├── .gitignore                # Specified version control exclusions (e.g., venv, __pycache__ )
├── .python-version           # Explicit python version pinning
├── pyproject.toml            # Project metadata, dependencies, and editable tool configurations
└── README.md                 # System documentation## ⚙️ Installation

Clone repository:

git clone https://github.com/YOUR_USERNAME/Expense-Tracker-MCP.git

cd Expense-Tracker-MCP

Install dependencies:

pip install -e .

🔐 Environment Configuration

Create .env


MONGODB_URI=your_mongodb_connection_string

DATABASE_NAME=expense_tracker

▶️ Running Application

Start MCP Server

-expense-server

or

python mcp_server.py

🌐 Remote MCP Server

This project also provides a remote MCP server that users can connect to:https://expense-tracker-01.fastmcp.app/mcp

API Documentation:

http://localhost:8000/docs

🔮 Future Improvements

-Expense prediction using ML-Budget recommendation engine-Voice-based expense entry-Multi-user authentication-React dashboard-Cloud deployment-Mobile application

👨‍💻 Developer

Sarim Abbas

AI Engineer | Backend Developer | Agentic AI Developer

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