investor core mcp server

Real estate deals often fall apart because of sloppy mental math or optimistic projections that ignore expenses and interest. Language models frequently hallucinate complex mortgage calculations or ROI percentages, leading to risky investment advice.

InvestorCore provides a suite of deterministic tools for your AI agent to calculate property performance accurately. It handles the heavy lifting of mortgage amortization, tax implications, and growth projections locally on your machine.

What it does

• Calculate ROI via the analyze_property_investment tool, returning CAGR, net cash flow, and breakeven timelines.
• Stress test deals by simulating 10% rent drops, 0% appreciation, or 2% interest rate hikes.
• Optimize exit timing by identifying the year marginal returns fall below your specified hurdle rate.
• Compare alternatives by benchmarking property equity growth against fixed-return assets like index funds.
• Break down profit into specific components including rental income, appreciation, and equity built through principal repayment.

How it works

1. Install the MCP server locally using Node.js and point your MCP client to the server directory.
2. Provide property data such as price, gross rent, and down payment through natural language prompts.
3. Use the analyze_exit_strategy or run_investment_stress_test commands to refine the investment thesis.

Frameworks & tools

This skill is built with Node.js and the official Model Context Protocol (MCP) SDK. It runs as a local stdio server and requires no external API keys or cloud dependencies.

Why this beats prompting it yourself

Standard LLMs struggle with multi-year amortization schedules and compounding interest, often producing inconsistent results. This skill offloads the math to a deterministic JavaScript engine, ensuring your agent provides mathematically sound financial analysis every time.

Use cases

• Screening potential rental properties for cash-flow-positive opportunities.
• Determining if a deal relies too heavily on speculative price appreciation.
• Comparing a real estate down payment against passive stock market investing.
• Evaluating the impact of interest rate changes on long-term equity growth.

Known limitations

The model uses fixed-rate loan assumptions and constant growth rates. It does not account for capital gains tax, closing costs, or refinancing scenarios.