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LogicNodes Loan Calculator
x402
LogicNodes Loan Calculator is a paid API for AI agents from logicnodes.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-28).
Computes amortized loan payment schedules given principal, annual rate, and term, returning exact decimal results with configurable rounding for AI agents.
Price / call$0.001
Success—
StatusUnknown
How this service works
Exact answers for AI agents: 40+ tools for EVM chains and Aptos, gas on 14 chains, never a guess. Free tier; pay per call in USDC (x402) on 13 networks.
Output
Returns a JSON object with an 'ok' boolean status and the tool name, along with the computed monthly payment amount as an exact decimal value formatted to the requested scale and rounding rule.
Example use cases
Mortgage affordability check
“I'm looking at a $450,000 home with a 7.1% interest rate on a 30-year mortgage — what would my exact monthly payment be? Use half_even rounding and show me 2 decimal places.”
Auto loan monthly payment
“Can you calculate the monthly payment on a $28,500 car loan at 5.9% annual interest over 60 months? I want the answer rounded up to the nearest cent.”
Business loan installment estimate
“We're considering a $100,000 business loan at 8.25% per year to be paid back over 36 months — compute the monthly installment rounded half_up to 4 decimal places of precision.”
Technical details
Endpoint
POSThttps://logicnodes.io/paid/v1/tools/loan_calc?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need exact, deterministic loan payment computations with configurable decimal precision and rounding modes — especially in financial AI agents where floating-point approximations are unacceptable. It is ideal when you need auditable, reproducible results rather than ballpark estimates, and when paying per-call via USDC microtransactions (x402) is acceptable.
Side effects
- Missing required fields (principal, termMonths, or annualRatePercent) result in validation error
- Scale out of range (below 0 or above 8) rejected
- termMonths outside 1–600 range rejected
- Invalid rounding enum value returns error
- Non-numeric principal or rate string causes parsing failure
- Payment failures via x402 protocol result in 402 response before computation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| scale | integer | |
| rounding | string | rounding rule; default half_up (ties away from zero). half_even is banker's rounding |
| principal | string | |
| termMonths | integer | |
| annualRatePercent | string |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tool": "loan_calc"
}
}Tags
x402
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