# Numora Mortgage Payment Calculator

> Numora Mortgage Payment Calculator is a paid API for AI agents from numomo.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 a loan principal, annual interest rate, and term in months

## Facts

- Endpoint: POST https://numomo.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-cf35d818
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QfERkvo9lVBXKByTdOX_k

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-cf35d818 -d '<json body>'
```

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

## When to prefer this

Choose this endpoint when you need a fast, dependency-free, serverless computation of standard fixed-rate mortgage payments with no external data sources required. Ideal for agents doing real-time financial planning, loan comparison, or affordability analysis without needing to connect to a bank or financial data provider.

## Known failure modes

- Missing required fields (rate, months, principal) returns validation error
- Negative or zero principal causes computation error
- Zero or negative interest rate may return unexpected result
- Non-integer months value rejected by schema validation
- Extremely large principal or rate values may cause overflow or unrealistic 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 a 'result' object containing computed mortgage details (likely monthly payment, total payment, total interest), a 'success' boolean set to true, and a 'computation' string describing what was calculated in human-readable form.

## 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-cf35d818/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numomo.vercel.app](https://www.zero.xyz/host/numomo.vercel.app/llms.txt)