# Compound Interest Calculator

> Compound Interest Calculator is a paid API for AI agents from aniccanomac-mini-1.tail7a0ba4.ts.net:8443, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Calculates compound interest, returning the final amount and total interest earned given principal, rate, compounding frequency, and duration.

## Facts

- Endpoint: GET https://aniccanomac-mini-1.tail7a0ba4.ts.net:8443/compound-interest
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/compound-interest-calculator-cb74e159
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_goCTxNdpH3GRNioSee2WH

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability compound-interest-calculator-cb74e159
```

Example prompt: How much will $10,000 grow to if I invest it at a 5% annual interest rate for 10 years, compounded 12 times per year? Give me the final amount and the total interest earned.

## When to prefer this

Use this endpoint when you need a fast, deterministic, server-side compound interest calculation and want a structured JSON result without building the formula yourself. Ideal for finance-related agents, savings projectors, or investment planners that need a reliable arithmetic result instantly.

## Known failure modes

- Missing required parameters (principal, rate, years, compoundsPerYear) result in an error response
- Non-numeric or negative values for financial inputs may return validation errors
- Zero or negative compoundsPerYear may cause a division error or invalid result
- Network or TLS issues connecting to the Tailscale host may cause timeouts
- Payment failure via x402 protocol may block the request

## How this service works

Compound interest calculator. GET /compound-interest?principal=10000&rate=5&years=10&compoundsPerYear=12 → final amount + interest earned. Deterministic JSON, instant.

## Output

A deterministic JSON response containing the final accumulated amount and the total interest earned over the specified period, given the input principal, annual rate, compounding frequency, and number of years.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/compound-interest-calculator-cb74e159/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aniccanomac-mini-1.tail7a0ba4.ts.net:8443](https://www.zero.xyz/host/aniccanomac-mini-1.tail7a0ba4.ts.net%3A8443/llms.txt)