LogicNodes Interest Calculator

x402

LogicNodes Interest 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 simple or compound interest for a given principal, rate, and time period with configurable compounding frequency, precision, and rounding rules

Price / call$0.001

Seller volume →—

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

A JSON object with an 'ok' boolean indicating success, the tool name 'interest_calc', and the computed interest value as a precise decimal string based on the requested scale and rounding mode. Exact numeric results are returned — no approximations or floating point errors.

Example use cases

Loan interest cost estimation

“I'm taking out a $50,000 loan at 7.2% interest for 5 years compounded monthly — can you calculate exactly how much interest I'll owe, rounded to 2 decimal places using half_up rounding?”

DeFi yield projection

“If I deposit 10,000 USDC into a protocol earning 12% APR compounded daily for 1 year, how much interest will I earn? Give me the result with 6 decimal places of precision.”

Simple interest on short-term note

“What's the simple interest on a $5,000 promissory note at 8% annual rate for 0.5 years? I need the answer rounded down to 4 decimal places.”

Technical details

Endpoint

POSThttps://logicnodes.io/paid/v1/tools/interest_calc?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need exact, deterministic interest calculations without floating-point ambiguity — especially in financial, DeFi, or lending contexts where precision and configurable rounding modes (e.g. banker's rounding) are critical. Prefer it over general-purpose math tools or LLM arithmetic when auditability and exact decimal scale matter.

Side effects

Invalid or missing principal — returns error if principal is not a valid numeric string
Rate percent out of reasonable range or malformed — parsing failure
Years value not parseable as a numeric string
Scale outside 0–18 range — schema validation error
Unknown compounding or rounding enum value — rejected at input validation
Network or payment failure — HTTP 402 if USDC payment not provided

Input

Schema · Request body

Field	Type	Description
scale	integer
years	string
rounding	string	rounding rule; default half_up (ties away from zero). half_even is banker's rounding
principal	string
compounding	string
ratePercent	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "tool": "interest_calc"
  }
}

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