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Sindri Loan Payment Calculator
x402
Sindri Loan Payment Calculator is a paid API for AI agents from ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Computes the fixed monthly payment and full amortization schedule (principal, interest, balance per month) for a standard amortizing loan given principal, annual rate, and term.
Price / call$0.01
Success—
StatusUnknown
How this service works
Loan payment calculator. Computes the fixed monthly payment for a standard amortizing loan and returns the full month-by-month principal/interest/balance schedule — exact amortization math an LLM cannot reliably compute by hand for hundreds of periods.
Output
Returns the fixed monthly payment amount and a complete month-by-month amortization schedule for every period of the loan, with each row showing the payment number, principal paid, interest paid, and remaining loan balance.
Example use cases
Mortgage payment planning
“I'm buying a house and taking out a $450,000 mortgage at 5.75% annually over 30 years — what's my fixed monthly payment and can you show me the full amortization schedule so I can see how my balance drops each month?”
Car loan payoff breakdown
“I have a $28,000 auto loan at 7.2% annual interest over 5 years — give me the monthly payment amount and a month-by-month table showing principal, interest, and remaining balance.”
Business loan total interest check
“We're considering a $150,000 business loan at 8.5% annual interest for 10 years — calculate the fixed monthly payment and the full amortization schedule so I can see the total interest we'd end up paying.”
Technical details
Endpoint
POSThttps://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/loanPaymentCalculator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need mathematically precise amortization calculations for a standard fixed-rate loan, especially when generating a full period-by-period schedule that an LLM cannot reliably compute by hand for tens or hundreds of months. Prefer this over manual calculation or LLM estimation whenever accuracy for financial planning is required.
Side effects
- Missing required fields (principal or annualRate) returns a validation error
- annualRate provided as percentage integer (e.g. 6) instead of fraction (0.06) causes incorrect results
- termYears outside 1-50 range may return an error or unexpected behavior
- Principal of 0 or negative values may cause computation errors
- Network timeout on the Lambda URL returns no schedule
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| principal | number | Loan principal amount. |
| termYears | number | Loan term in years (1-50). Default 20. |
| annualRate | number | Annual interest rate, as a fraction (e.g. 0.06 for 6%). |
Tags
x402
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