# Numora Simple Interest Calculator

> Numora Simple Interest Calculator is a paid API for AI agents from numormor.netlify.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Computes simple interest given a principal amount, interest rate, and number of periods

## Facts

- Endpoint: POST https://numormor.netlify.app/api/financial/simple-interest
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/numora-simple-interest-calculator-496853a8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cUOIpsoX5wmhGUdlm9aqB

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 numora-simple-interest-calculator-496853a8 -d '<json body>'
```

Example prompt: Calculate the simple interest on a principal of $5,000 at an annual rate of 6% over 3 periods.

## When to prefer this

Choose this endpoint when you need a fast, dependency-free computation of simple interest (I = P × r × t) without compound interest or amortization. Ideal for straightforward financial math tasks where the formula is fixed and no external data sources (e.g. live rates) are needed. Prefer over a general-purpose LLM calculation when you want a reliable, auditable numeric result.

## Known failure modes

- Missing required fields (principal, rate, or periods) returns a validation error
- Non-numeric values for rate, periods, or principal cause a bad request error
- Negative principal or rate may return unexpected results if not validated server-side
- Payment failure via x402 micropayment returns a 402 Payment Required response

## How this service works

100 pure math computation endpoints for AI agents. Statistics, financial math, linear algebra, equation solving, calculus, number theory, sequence generation, and unit conversions. Zero external dependencies. x402 micropayments on Base.

## Output

Returns a JSON object with success=true, a result object containing the computed simple interest value, and a human-readable computation string describing what was calculated.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "rate",
  "periods",
  "principal"
 ],
 "properties": {
  "rate": {
   "type": "number"
  },
  "periods": {
   "type": "number"
  },
  "principal": {
   "type": "number"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "success",
  "result",
  "computation"
 ],
 "properties": {
  "result": {
   "type": "object",
   "description": "Computation result varies by endpoint"
  },
  "success": {
   "type": "boolean",
   "description": "Always true on success"
  },
  "computation": {
   "type": "string",
   "description": "Human-readable description of what was computed"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/numora-simple-interest-calculator-496853a8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numormor.netlify.app](https://www.zero.xyz/host/numormor.netlify.app/llms.txt)