# Financing Calculator MCP > Real Estate Financing Calculator simulates complex mortgage financing for immediate financial planning. This MCP generates complete amortization schedules using two industry-standard methods: the Price (French) system and the SAC (Constant Amortization System). It helps you compare total costs, see monthly payment breakdowns, and quickly retrieve key loan summaries. ## Overview - **Category:** finance - **Price:** Free - **Tags:** amortization, price-system, sac-system, mortgage-calculator, real-estate ## Description Calculating mortgages used to involve complex spreadsheets and confusing formulas. Now, this MCP handles that heavy lifting for you. You feed it basic loan parameters—the principal, the rate, and the term—and your agent runs both major amortization models: Price and SAC. The system generates detailed month-by-month schedules, letting you see exactly how interest changes over time under each method. You can run a side-by-side comparison to instantly identify which financing strategy saves you money overall. If you're using this through Vinkius, the entire catalog of financial models is available in one place for your AI client to access. It’s a powerful way to move past simple estimates and get true financial simulations. ## Tools ### get_loan_summary Quickly retrieves the total financial impact, giving you an overview of principal and interest for any loan system. ### calculate_price_amortization Generates a full monthly payment schedule based on the Price (French) amortization method. ### calculate_sac_amortization Creates a complete month-by-month breakdown of payments using the SAC (Constant Amortization System). ### compare_financing_strategies Compares two financing methods to show the exact total cost difference between Price and SAC systems. ## Prompt Examples **Prompt:** ``` Calculate a Price amortization schedule for a $200,000 loan at 5% annual interest over 360 months. ``` **Response:** ``` The monthly installment for your $200,000 loan will be approximately $1,073.64. Over 360 months, you will pay a total of $386,512.11, with the interest component starting at $833.33 and decreasing each month. ``` **Prompt:** ``` Compare Price vs SAC for a $100,000 loan at 6% interest for 120 months. ``` **Response:** ``` For this loan, the SAC system will result in a total interest savings of approximately $3,150 compared to the Price system. ``` **Prompt:** ``` What is the total amount I will pay for a SAC loan of $300,000 at 4.5% interest over 240 months? ``` **Response:** ``` The total amount paid for the SAC financing will be $367,500.00. ``` ## Capabilities ### Generate Price amortization schedule Creates a detailed monthly payment breakdown showing how interest decreases while the installment amount stays constant. ### Generate SAC amortization schedule Provides a full month-by-month payment table demonstrating payments that gradually increase over the life of the loan. ### Compare financing strategies Calculates and compares the total repayment costs between the Price system and the SAC system for your specific loan parameters. ### Get quick loan summary Pulls together a fast overview of the entire financial impact, summarizing total interest and principal paid. ## Use Cases ### Client needs to compare loan structures A mortgage officer asks their agent: 'Compare Price vs SAC for a $100k loan at 6% interest for 120 months.' The MCP returns the total cost difference, proving which system saves the client money. ### Quickly checking overall financial totals A real estate investor asks: 'What is the total amount I will pay for a SAC loan of $300k at 4.5% interest over 240 months?' The agent uses `get_loan_summary` to get the exact final payment figure instantly. ### Showing detailed monthly breakdowns A financial analyst needs proof of how payments shift. They ask the MCP to run `calculate_price_amortization` to show the constant installment and decreasing interest over 360 months. ### Validating a quick estimate A loan officer has an initial figure, but wants professional verification. They use `compare_financing_strategies` first to set a baseline comparison before running the detailed schedules for both systems. ## Benefits - See the full impact of financing choices. Instead of just getting a monthly payment estimate, running `calculate_price_amortization` or `calculate_sac_amortization` gives you every single month's breakdown. - Determine true cost savings immediately. Use `compare_financing_strategies` to show clients exactly how much money they save by choosing one system over the other. - Eliminate guesswork with loan summaries. The `get_loan_summary` tool provides a clean, instant overview of total interest and principal repayment without needing a massive spreadsheet. - Handle both major systems in one flow. You don't need two separate calculators; this MCP handles both Price and SAC methods side-by-side for easy comparison. - Improve client confidence. By showing them the detailed schedules, you move beyond rough estimates and provide mathematically verified financial data. ## How It Works The bottom line is that this MCP gives you precise financial simulations so you can confidently advise clients on the best mortgage structure. 1. First, provide your agent with the core loan details: the initial principal amount, the annual interest rate, and the number of months. 2. Next, specify which comparison or schedule you need. You can ask it to run both the Price and SAC calculations simultaneously for a side-by-side view. 3. The MCP returns two detailed amortization tables, showing every payment breakdown and the total cost difference between the two methods. ## Frequently Asked Questions **How does the Real Estate Financing Calculator handle different amortization types?** The MCP handles both Price (French) and SAC (Constant Amortization System). You can ask it to run `calculate_price_amortization` or `calculate_sac_amortization` for specific views. **What is the difference between using get_loan_summary and compare_financing_strategies?** `get_loan_summary` gives a quick total impact overview. However, `compare_financing_strategies` actively compares two methods to show you which one saves money overall. **Can I calculate the amortization for multiple loans at once?** The MCP processes one set of parameters per calculation run. You'll need to provide the details for each loan separately, but it makes running these calculations fast and structured. **Does Real Estate Financing Calculator require specialized financial knowledge?** No. You just need to provide the core inputs (principal, rate, term). The MCP handles the complex formulas for both Price and SAC systems automatically.