All servers · Payments & accounting

io.github.SPFreedom/showrealcost

io.github.SPFreedom/showrealcost · v0.1.0

Measured by MCP Station

Description written by the publisher, not verified

Loan-cost math: payments, payoff time, offers with fees, payday loans, Rule of 78s, Fed rates.

Connect

claude mcp add --transport http showrealcost https://mcp.showrealcost.com/mcp

{
  "mcpServers": {
    "showrealcost": {
      "url": "https://mcp.showrealcost.com/mcp"
    }
  }
}

Tools as reported by the server

• loan_payment
  For a fixed-rate installment loan (personal, auto, any level-payment loan): the monthly payment, total interest, total repaid, how the first payment splits between interest and principal, and optionally how much has been paid and is still owed after a number of payments. Use for "what will this loan
• payoff_time
  How long a balance (credit card or loan) takes to pay off at a fixed monthly payment, and the interest paid. Use for "how long to pay off my card at $X a month" and for comparing a bigger payment by calling it twice.
• compare_loan_offers
  Compare two to four loan offers with different rates and fees fairly: each offer is sized so the borrower receives the same cash, then compared on payment, total cost of borrowing (interest plus fees) and estimated APR. Use for "is a lower rate with an origination fee cheaper than a higher rate with
• payday_loan_cost
  For a payday loan, title loan, pawn loan, cash-advance app or any loan priced by a fee for a number of days: the fee in dollars, the APR, and what renewing (rolling over) costs. Use for "what is the APR on a $500 payday loan at $15 per $100" and "what does rolling it over cost".
• refinance_check
  Compare keeping a loan against a refinance offer, from today forward: interest remaining on the current loan, interest on the new loan, and what happens if the borrower takes the new rate but keeps paying the old payment. Use for "the new loan has a lower payment, does it actually save money".
• precomputed_loan_payoff
  For a precomputed or add-on interest loan (common from dealers, finance companies and furniture stores): the payoff after a number of payments under the Rule of 78s and under the actuarial method, and how much more the Rule of 78s keeps. Use for "why is my payoff different from my balance".
• per_diem_interest
  The interest a simple-interest loan adds each day, and over a number of days. Use for reading a payoff letter, for "how much more is my payoff than my statement balance", and for the cost of a skipped or deferred payment.
• debt_payoff_plan
  Simulate paying off several debts with minimum payments plus an optional extra each month, highest rate first (avalanche) and smallest balance first (snowball), against minimums only. Returns months to debt-free and total interest for each. Use for "avalanche or snowball on my debts" and "what does
• average_loan_rates
  The latest Federal Reserve (G.19) average interest rates at commercial banks for a 24-month personal loan, 60- and 72-month new car loans, and credit cards, with the change from the previous quarter and from a year earlier. Optionally compares a rate someone was offered with the average and gives th

Website · JSON · Text for agents · Registry updated 2026-10-07