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Finance Analysisintermediate3-step workflow~18 min

Price a mortgage and check affordability

Get the real monthly payment, normalize the quoted APR into a true effective rate, and see how the purchase shifts overall net worth.

Workflow

Step 1 of 3

Mortgage Payment Calculator

Calculate the monthly payment including taxes, insurance, and PMI.

mortgage({"home_price": 400000, "annual_rate": 0.07})
Step 2 of 3

Effective Rate (APR <-> APY)

Convert the loan's nominal APR into its true effective annual rate.

effective_rate({"mode": "to_apy", "apr": 0.07, "apy": 100})
Step 3 of 3

Net Worth Calculator

Check how taking on the mortgage shifts current assets and debts.

net_worth({"cash": 100, "investments": 100, "retirement_accounts": 100})

Install

One command wires up every tool below for Claude Code:

claude mcp add --transport http wingman https://wingmanprotocol.com/mcp

Claude Desktop, Cursor and Continue configs are on /install. A free key (500 calls/month, no card) is on /pricing; beyond that it is x402 pay-per-call in USDC on Base.