# VA Loan Calculator API

> For the complete documentation index, see [llms.txt](/llms.txt).

VA loan payment with the funding fee by use type and down payment, financed or paid at closing.

Use this endpoint to add the tool to your app, site, workflow, or agent without rebuilding formulas, validation, examples, and docs.

- Slug: `va-loan-calculator`
- Category: `finance`
- Version: `2026-04-22`
- Credits per successful call: 2
- Starts on: free
- Max payload: 65536 bytes
- Privacy mode: `hash_only`
- Available on: free, starter, pro, business, scale
- Browser tool: https://miniwebtool.com/va-loan-calculator/

## Endpoint

`POST https://api.miniwebtool.com/v1/tools/va-loan-calculator/run`

## Request body

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `home_price` | `float` | no | purchase price |
| `down_payment` | `float` | no | down payment amount |
| `fee_status` | `str` | no | first | subsequent | exempt Choices: first, subsequent, exempt |
| `finance_fee` | `str` | no | yes | no Choices: yes, no |
| `loan_term` | `str` | no | 30 | 20 | 15 Choices: 30, 20, 15 |
| `interest_rate` | `float` | no | annual interest rate % |
| `property_tax` | `float` | no | annual property tax |
| `home_insurance` | `float` | no | annual homeowners insurance |
| `hoa_fees` | `float` | no | monthly HOA fees |

## Example request

```json
{
  "home_price": 400000,
  "down_payment": 0,
  "fee_status": "first",
  "finance_fee": "yes",
  "loan_term": "30",
  "interest_rate": 6.25,
  "property_tax": 4800,
  "home_insurance": 1600,
  "hoa_fees": 0
}
```

## cURL

```bash
curl -X POST https://api.miniwebtool.com/v1/tools/va-loan-calculator/run \
  -H 'Authorization: Bearer mwt_live_YOUR_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"home_price":400000,"down_payment":0,"fee_status":"first","finance_fee":"yes","loan_term":"30","interest_rate":6.25,"property_tax":4800,"home_insurance":1600,"hoa_fees":0}'
```

## Response envelope

```json
{
  "request_id": "01K...",
  "tool": "va-loan-calculator",
  "tool_version": "2026-04-22",
  "credits_used": 2,
  "result": {}
}
```

## Errors

Errors are RFC 7807 `application/problem+json`. Branch on `code`, not `title`.

## MCP

Agents can discover and call this tool through `https://api.miniwebtool.com/mcp` or `https://api.miniwebtool.com/v1/mcp` using MCP `tools/list` and `tools/call`.

## Frequently asked

### What does the VA Loan Calculator API do?

VA loan payment with the funding fee by use type and down payment, financed or paid at closing. Use it to add this utility without rebuilding formulas, validation, examples, and documentation.

### How much does one call cost?

2 credits per successful call. Failed calls do not bill.

### What parameters are required?

Required fields: (none). Full schema at `https://api.miniwebtool.com/v1/openapi.json`.

### Is this deterministic?

Yes. Same input, same output. Tool version: 2026-04-22.