Personal Expenses MCP Server
An MCP server for tracking personal monthly budgets, allowing users to add people, initialize months with salary, log expenses, and retrieve monthly statements through natural language.
README
Personal Expenses MCP Server
An MCP server for tracking a personal monthly budget — salary, per-month snapshots, and running expenses — exposed as tools an MCP client (e.g. Claude Desktop or Claude Code) can call directly in conversation.
Data is stored in memory only; it resets whenever the server restarts.
Requirements
- Python >= 3.12
- uv
Install
uv sync
Run
uv run python main.py
Tools
| Tool | Description |
|---|---|
add_person(name, base_salary) |
Adds a new person with their initial base salary. |
initialize_new_month(name, month, has_salary_changed, new_salary_amount=0) |
Starts a new tracking month for a person, snapshotting their current (or updated) salary. |
log_expense(name, month, description, amount_in_dollars) |
Logs an expense against a person's month and returns the updated total spent / salary left. |
get_monthly_statement(name, month) |
Returns the full expense breakdown and remaining balance for a person's month. |
Using with an MCP client
Add an entry to the client's MCP server config (e.g. Claude Desktop's claude_desktop_config.json):
{
"mcpServers": {
"main": {
"command": "uv",
"args": ["run", "--frozen", "--directory", "/absolute/path/to/PersonalExpenses_MCPServer", "python", "main.py"]
}
}
}
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