# Numora Mortgage Payment Calculator

> Numora Mortgage Payment Calculator is a paid API for AI agents from numormo.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Computes monthly mortgage payment and amortization details given principal, annual interest rate, and loan term in months

## Facts

- Endpoint: POST https://numormo.vercel.app/api/financial/mortgage
- 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-mortgage-payment-calculator-98acf45d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Hj4BvEQvB7MKSypNox-9E

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-mortgage-payment-calculator-98acf45d -d '<json body>'
```

Example prompt: Can you calculate the monthly mortgage payment on a $450,000 loan at a 6.75% annual interest rate over 30 years (360 months)?

## When to prefer this

Use this endpoint when you need a quick, serverless, dependency-free mortgage payment calculation without integrating a full financial data platform. Ideal for AI agents that need to compute loan repayment figures on demand during a conversation, especially when the agent already handles x402 micropayments on Base. Prefer this over general-purpose calculators when you need structured JSON output suitable for downstream agent reasoning.

## Known failure modes

- Missing required fields (rate, months, principal) returns a validation error
- Non-positive principal or rate values may cause computation errors
- Zero months causes division-by-zero failure
- Payment failure via x402 micropayment protocol causes 402 response before computation
- Rate provided as percentage vs decimal mismatch (e.g. 6.5 vs 0.065) may yield unexpected results

## 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 human-readable computation string describing what was computed, and a result object containing the computed monthly payment amount, total payment over the life of the loan, and total interest paid (exact fields vary but center on mortgage amortization outputs).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "rate",
  "months",
  "principal"
 ],
 "properties": {
  "rate": {
   "type": "number"
  },
  "months": {
   "type": "integer"
  },
  "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-mortgage-payment-calculator-98acf45d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numormo.vercel.app](https://www.zero.xyz/host/numormo.vercel.app/llms.txt)