# ApexAPI Mortgage Calculator

> ApexAPI Mortgage Calculator is a paid API for AI agents from apex-api-gamma.vercel.app, paid per call via x402, $0.133379/call, status unknown (last checked 2026-09-15).

Calculates mortgage payments, interest, and amortization details based on loan parameters

## Facts

- Endpoint: POST https://apex-api-gamma.vercel.app/api/finance/mortgage/calc
- Price: $0.133379/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/apexapi-mortgage-calculator-3cbdb742
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ls_uulhDJMIJTb7heqbVS

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 apexapi-mortgage-calculator-3cbdb742 -d '<json body>'
```

Example prompt: Can you calculate the monthly mortgage payment on a $450,000 home loan with a 6.8% annual interest rate over 30 years and a $90,000 down payment?

## When to prefer this

Use this endpoint when you need a quick, pay-per-call mortgage calculation without managing API keys. Suitable for AI agents that need on-demand mortgage math for real estate scenarios, financial planning conversations, or home affordability analysis.

## Known failure modes

- Missing or invalid loan amount returns an error
- Unsupported or malformed query string yields no result
- Interest rate or term out of realistic bounds may cause computation error
- API returns generic error if required parameters are absent from the query

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

## Output

Returns computed mortgage details including monthly payment amount, total interest paid over the life of the loan, amortization breakdown, and related financial metrics based on the loan parameters provided.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query or input parameter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/apexapi-mortgage-calculator-3cbdb742/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from apex-api-gamma.vercel.app](https://www.zero.xyz/host/apex-api-gamma.vercel.app/llms.txt)