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Loan Amortization Schedule Calculator
x402
Loan Amortization Schedule Calculator is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Computes a full loan amortization schedule including monthly payment, payoff timeline, total interest paid, and interest savings from extra payments.
Price / call$0.01
Success—
StatusUnknown
How this service works
Computes a loan's amortization schedule and payment breakdown. Same backend as loan-amortization-calculator, focused on scheduled payment, payoff months, total paid, and interest saved. Use it as an amortization schedule API, loan payment schedule, or debt amortization calculator.
Output
Returns a structured JSON with a loan grade (e.g. 'strong'), a numeric score (0-100), monthly payment amount, total months to payoff, total interest paid, DSCR driver details with scores and weights, any warnings, a recommendation string (e.g. 'Proceed with standard diligence'), and the calculator identifier. All figures are computed deterministically with no external API dependencies.
Example use cases
Mortgage affordability planning
“I'm looking at a $450,000 home with a 20% down payment, so a $360,000 mortgage at 7.1% over 30 years — what would my monthly payment be, how much total interest will I pay, and how does the loan grade out?”
Early payoff impact analysis
“I have a $180,000 car and personal loan combined at 8.5% with 5 years left — if I throw an extra $400 a month at it, how many months sooner do I pay it off and how much interest do I save?”
Business loan debt service coverage
“Can you run an amortization schedule on a $1,200,000 commercial loan at 6.25% over 20 years and tell me the DSCR score and whether the lender would likely approve it?”
Technical details
Endpoint
POSThttps://x402.agentutility.ai/amortization-scheduleWhen to prefer
Choose this endpoint when you need a detailed amortization breakdown — monthly payment, total interest, payoff timeline, and a graded risk/quality score — especially when evaluating loan affordability or impact of extra payments. Prefer it over generic calculators when you want a machine-readable score, DSCR analysis, and a recommendation string suitable for automated financial decision workflows. It pays per call via USDC, making it appropriate for agent-driven finance automation where auditability matters.
Side effects
- Missing required fields (principal or annual_rate) returns a validation error
- Negative or zero principal/rate values may produce nonsensical results
- Term not specified (no term_months or term_years) may default or error
- Extremely large principal values could produce overflow edge cases
- Malformed JSON body returns HTTP 400
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"grade": "strong",
"score": 74.2,
"source": "deterministic in-process finance calculator; no upstream API",
"drivers": [
{
"name": "debt_service_coverage",
"note": "1.42x DSCR",
"score": 83.6,
"weight": 0.3
}
],
"metrics": {
"payoff_months": 300,
"total_interest": 476553.25,
"total_monthly_payment": 2988.51
},
"warnings": [],
"calculator": "loan-amortization-calculator",
"recommendation": "Proceed with standard diligence and covenant checks."
}
}Tags
x402
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