API Endpoint

Refinancing Comparison

Compare current loan with refinance option, including closing costs and break-even point.

Endpoint

POST https://likeoptions.com/api/v1/calculate/refinancing

Also supports GET with query parameters.

Parameters

Parameter	Type	Default	Description
`balance`	number	—	Current loan balance ($)
`currentRate`	number	—	Current interest rate (%)
`currentMonths`	number	—	Months remaining on current loan
`newRate`	number	—	New loan interest rate (%)
`newYears`	number	—	New loan term (years)
`closingCosts`	number	0	Refinancing closing costs ($)

Request Examples

POST (JSON body)

curl -X POST https://likeoptions.com/api/v1/calculate/refinancing \
  -H "Content-Type: application/json" \
  -d '{"balance": 100000, "currentRate": 50000, "currentMonths": 6}'

GET (query parameters)

curl "https://likeoptions.com/api/v1/calculate/refinancing?balance=100000&currentRate=50000&currentMonths=6"

Response

{
  "kind": "refinancing",
  "result": {
    "primary": 1234.56,
    "secondary": [
      { "label": "Example metric", "value": 100, "format": "money" },
      { "label": "Example percent", "value": 5.5, "format": "percent" }
    ]
  }
}

When to Use

Decide whether to refinance
Calculate break-even point
Compare rate scenarios

Error Handling

400 Bad Request — Invalid input parameters or missing required fields
404 Not Found — Unknown calculator kind
429 Too Many Requests — Rate limit exceeded (120 req/hour per IP)
413 Payload Too Large — Request body exceeds 16 KB

Related Endpoints

View request examples in JavaScript, Python, cURL, and more →