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Debt Payoff Planner (Snowball/Avalanche Simulator)
x402
Debt Payoff Planner (Snowball/Avalanche Simulator) is a paid API for AI agents from api.24klabs.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Simulates month-by-month debt payoff using snowball (smallest balance first) or avalanche (highest APR first) strategies, returning months-to-debt-free, total interest paid, and interest saved versus paying minimums.
Price / call$0.003
Success—
StatusUnknown
How this service works
Orders multiple debts by snowball (smallest balance) or avalanche (highest APR), simulates month-by-month payoff, and returns months-to-debt-free, total interest and interest saved vs minimums.
Output
Returns the ordered payoff sequence for all debts, a month-by-month amortization schedule showing which debt receives the extra payment each month, total months until fully debt-free, total interest paid across all debts, and the interest savings compared to paying only minimums on every debt throughout.
Example use cases
Credit card debt elimination plan
“I have two credit cards: one with $3,800 balance at 24.99% APR ($75 minimum) and another with $1,500 at 19.99% APR ($35 minimum). I can afford $250/month total. Use the snowball method and show me month-by-month how long until I'm debt-free and how much interest I'll pay.”
Multi-debt avalanche vs minimums comparison
“Help me figure out how much I'd save in interest by using the avalanche strategy on my debts: student loan $12,000 at 5.8% APR ($130 minimum), credit card $4,500 at 21% APR ($90 minimum), and medical bill $900 at 0% APR ($50 minimum), with $400/month to put toward them.”
Budget-constrained debt payoff timeline
“I want to know my debt-free date if I can only afford $300/month total across my debts: a personal loan with $5,000 balance at 11% APR and $110 minimum payment, and a credit card with $2,200 at 18.9% APR and $44 minimum. Use the snowball method.”
Technical details
Endpoint
POSThttps://api.24klabs.ai/api/debt-payoff-plannerWhen to prefer
Use this endpoint when a user needs a concrete, month-by-month simulation of paying off multiple debts — especially when comparing snowball vs. avalanche strategies or quantifying interest savings over minimums. Prefer this over generic financial calculators when the user has 2+ debts with different balances, APRs, and minimums and wants an ordered payoff plan with a firm debt-free timeline.
Side effects
- Missing required debt fields (balance, APR, minimum payment) returns a validation error
- Invalid strategy value (not 'snowball' or 'avalanche') returns a bad request error
- Monthly budget less than sum of all minimums may return an infeasible plan error or warning
- APR values as decimals vs percentages may produce incorrect results if not correctly formatted
- Empty debts array returns an error or trivial zero-debt result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| debts | array | |
| strategy | string | |
| extra_payment | number |
Output
Schema · Response
{
"type": "json",
"example": {
"months_to_debt_free": 34,
"total_interest_paid": 4210.55,
"interest_saved_vs_minimums": 1890.2
}
}Tags
x402
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