Return the monthly car payment, total interest, financed amount, and a month-by-month amortization schedule for an auto loan. Accounts for down payment, trade-in value, and sales tax (optionally financed). Rate is a yearly percentage.
This page documents the MCP tool findutils:auto_loan_calculator. See the REST reference →
Call it over MCP
Tool name findutils:auto_loan_calculator
· no API keys · 120 requests/min per IP
Claude Code
claude mcp add findutils --transport http https://mcp.findutils.com/Claude Desktop — claude_desktop_config.json
{
"mcpServers": {
"findutils": {
"url": "https://mcp.findutils.com/"
}
}
}Raw JSON-RPC (any MCP client) — verified example
curl -X POST https://mcp.findutils.com/ \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "auto_loan_calculator",
"arguments": {
"vehicle_price": 35000,
"down_payment": 5000,
"trade_in_value": 0,
"interest_rate": 6.5,
"loan_term_months": 60,
"sales_tax": 8,
"include_tax_in_loan": true
}
}
}'Input schema
| Argument | Type | Required | Description |
|---|---|---|---|
| vehicle_price | number | yes | Vehicle purchase price before tax. |
| interest_rate | number | yes | Yearly interest rate in percent (6.5 = 6.5%). Must be > 0. |
| loan_term_months | integer | yes | Loan term in months (for example 36, 48, 60, 72, 84). |
| down_payment | number | no | Cash down payment. Default: 0. |
| trade_in_value | number | no | Trade-in value credited against the price. Default: 0. |
| sales_tax | number | no | Sales tax rate in percent applied to the vehicle price. Default: 0. |
| include_tax_in_loan | boolean | no | Finance the sales tax in the loan. Default: true. |
Example arguments (verified)
{
"vehicle_price": 35000,
"down_payment": 5000,
"trade_in_value": 0,
"interest_rate": 6.5,
"loan_term_months": 60,
"sales_tax": 8,
"include_tax_in_loan": true
}Also a REST endpoint
The same tool answers plain HTTP at
POST /api/tools/auto-loan-calculator/execute — no key, 60 requests/min.
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