15-year vs 30-year mortgage comparison calculator
15-year vs 30-year mortgage comparison calculator. Computes monthly payment and total interest for both loan terms on the same purchase price and down payment, and reports the payment and lifetime-interest tradeoff between them.
Not tested: has real-world effectsour last check, 2026-09-24
0 of 0checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://x402.outpimp.com/mortgageComparisonCalculator
| Category | Market data |
|---|---|
| Provider host | x402.outpimp.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"downPaymentPercent": 0.2,
"interestRate15": 0.055,
"interestRate30": 0.065,
"purchasePrice": 300000
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"downPaymentPercent": {
"default": 0.2,
"description": "Down payment as a fraction of purchase price (0-1). Default 0.2.",
"type": "number"
},
"interestRate15": {
"description": "Annual interest rate for the 15-year loan, as a fraction.",
"type": "number"
},
"interestRate30": {
"description": "Annual interest rate for the 30-year loan, as a fraction.",
"type": "number"
},
"purchasePrice": {
"description": "Home purchase price.",
"type": "number"
}
},
"required": [
"purchasePrice",
"interestRate15",
"interestRate30"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}