MCP For Claude Marketplace
Finance Toolkit

Finance Toolkit MCP Connector for Claude

A+

Empower your AI agents to compute complex financial formulas. Instantly calculate ROI, compound interests, and SAC/Price amortization tables local.

4 tools Official Updated Jun 28, 2026 Official Vinkius Partner
More Details Connect to Claude

Financial mathematics require absolute deterministic precision. A single hallucination by an LLM in an interest rate or loan amortization could lead to disastrous business decisions. The Finance Toolkit MCP Server solves this by delegating the math to an exact V8 Javascript engine.

The Superpowers

  • Flawless Amortization: Compare SAC (Constant Amortization) and PRICE (French) loan tables instantly, providing exact summaries without blowing up the context window.
  • Compound Certainty: Calculate exponential compound interests with customizable frequencies.
  • Investment Tracking: Reliably compute ROI (Return on Investment) and net profit margins.
  • Absolute Privacy (Local): Sensitive financial planning data, loan principals, and proprietary rates never leave your local infrastructure.
financial-mathroi-calculationamortizationloan-projectionsdeterministic-mathv8-engine

4 tools expose this connector's capabilities to your AI agent.

calculate_amortization

Rate must be periodic decimal (e.g. monthly rate). Type must be "SAC" or "PRICE". Generates a summarized amortization schedule (SAC or PRICE table)

calculate_compound_interest

g. 0.05). Frequency is times per year interest is compounded (default 1). Calculates compound interest over a period of time

calculate_roi

Calculates the Return on Investment (ROI) percentage

calculate_simple_interest

Rate must be decimal (e.g. 0.05 for 5%). Calculates simple interest over a period of time

See how to talk to your AI agent using Finance Toolkit.

I need to finance a $500,000 property over 360 months at a 0.8% monthly interest rate. Give me the summary using the SAC table.

Using the calculate_amortization tool: The first installment is $5,388.89, the last is $1,400.00. Total interest paid will be $722,000.00.

If I invest $10,000 for 5 years with an annual compound interest rate of 7%, what will be the final amount?

Using the calculate_compound_interest tool: The final amount will be $14,025.52, generating $4,025.52 in pure interest.

Calculate the ROI for a marketing campaign where we invested $2,500 and generated $8,700 in sales.

Using the calculate_roi tool: The net profit is $6,200, resulting in a phenomenal ROI of 248%.

Returning 360 lines of JSON would severely bloat the LLM's context window, increasing API costs and causing distraction. We return a "Smart Summary" (total paid, total interest, first and last installments) which is perfect for AI decision-making.

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