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Agent402 UK Compound Interest Calculator
x402
Agent402 UK Compound Interest Calculator is a paid API for AI agents from agent402.co.uk, paid per call via x402, $0.002/call, status down (last checked 2026-09-14).
Calculates compound interest given a principal, rate, number of periods, and compounding frequency
Price / call$0.002
Success—
StatusDown
How this service works
Don't burn tokens on deterministic work. Go/no-go jobs first: payout preflight, text firewall (PII/secrets), budget check — then rails, calendars, finmath. x402 USDC on Base. UK + global. agent402.co.uk — not agent402.tools. $0.001–$0.002 USDC on Base. No API keys.
Output
Returns the calculated compound interest result including the final balance or accrued interest based on the provided principal, rate per period, number of periods, and compounding frequency per period.
Example use cases
Savings account growth projection
“I have $15,000 in a savings account earning 4.5% annually, compounded monthly. How much will I have after 7 years?”
Loan interest cost estimation
“I'm taking out a $50,000 loan at 8% interest compounded quarterly over 5 years — what's the total compound interest I'll end up paying?”
Investment return comparison
“If I invest $5,000 at 7% per year compounded daily over 20 years, what will the final balance be?”
Technical details
Endpoint
POSThttps://agent402.co.uk/v1/math/compoundWhen to prefer
Choose this endpoint when you need a fast, serverless compound interest calculation without building your own math logic. Ideal for financial planning agents, savings projectors, or loan analysis tools that need reliable compounding arithmetic. Prefer this over general-purpose code execution when you want a dedicated, well-defined financial math endpoint with predictable output.
Side effects
- Missing required fields (principal, rate, periods) returns a validation error
- Non-numeric values for numeric fields result in a 400 bad request
- Negative or zero periods may return an error or unexpected result
- Very large numbers may cause precision issues in floating point arithmetic
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| rate | number | Rate per period |
| periods | number | Number of periods |
| principal | number | Starting amount |
| compounds_per_period | number | Compounds per period |
Output
Schema · Response
{
"type": "json",
"example": {
"amount": 1628.894626777442,
"interest": 628.894626777442
}
}Tags
x402
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