# Xynaptic Property Mortgage Calculator

> Xynaptic Property Mortgage Calculator is a paid API for AI agents from api.xynaptic.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-02).

Calculates monthly mortgage payment, total cost, and amortization overview for a given loan amount, interest rate, and duration

## Facts

- Endpoint: GET https://api.xynaptic.io/v1/property-mortgage?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/xynaptic-property-mortgage-calculator-e15dd3cb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Y-_SAdgU8AarPAntLMOpG

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 xynaptic-property-mortgage-calculator-e15dd3cb
```

Example prompt: What would my monthly mortgage payment be if I borrow $300,000 at a 3.5% annual interest rate over 20 years, and how much will I pay in total?

## When to prefer this

Use this endpoint when you need a fast, pure-calculation mortgage result without requiring user accounts, credit checks, or lender-specific rules. Ideal for embedding mortgage estimates into financial planning agents, real estate lookup flows, or comparison tools where you supply the loan amount, rate, and term and just need the numbers.

## Known failure modes

- Missing required query parameters (amount, rate, years) returns a 400 error
- Invalid parameter types (e.g. non-numeric values) cause a parsing error
- Extremely low or zero interest rates may produce unexpected results
- Payment failure for the $0.02 USDC x402 fee results in a 402 response blocking computation

## How this service works

Xynaptic Property Mortgage — clean mortgage calculator: monthly payment, total cost, amortization overview for any rate/duration. GET ?amount=300000&rate=3.5&years=20. Pure calculation, agent-ready.

## Output

Returns the calculated monthly mortgage payment, total repayment amount over the loan lifetime, total interest paid, and an amortization overview showing how principal and interest evolve across the loan duration.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/xynaptic-property-mortgage-calculator-e15dd3cb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.xynaptic.io](https://www.zero.xyz/host/api.xynaptic.io/llms.txt)