Credit Card Payoff Calculator API

How long a credit card balance takes to clear and the interest paid: at a fixed monthly payment, within a set number of months, or paying only the minimum.

POST /api/v1/tools/credit-card-payoff-calculatorMCP credit_card_payoff_calculatorCalculators

Find how long a credit card balance takes to clear at a fixed payment, the payment needed to clear it by a date, or how long paying only the minimum would take.

Input

Send these as a JSON object. Unknown fields are rejected.

mode: payment: fixed monthly payment. months: payment needed to clear it in `months`. minimum: pay only the issuer's minimum. (string, one of payment, months, minimum, default "payment")
balance: Current balance owed. (number, 0 to …, required)
apr: Annual percentage rate, e.g. 21.99. Interest is charged monthly at APR ÷ 12. (number, 0 to 100, required)
payment: payment mode: the fixed monthly payment (must exceed the first month's interest). (number, 0 to …)
months: months mode: months to clear the balance, 1 to 1200. (integer, 1 to 1200)
minPercent: minimum mode: minimum payment as a % of the balance, with that month's interest added on top. (number, 0 to 100, default 1)
minFloor: minimum mode: the lowest minimum payment the issuer allows. (number, 0 to …, default 25)
schedule: Include the month-by-month rows (payment, interest, balance). (boolean, default false)

Try it in the browser JSON Schema Get an API key

curl https://pithlab.com/api/v1/tools/credit-card-payoff-calculator \n  -H "Authorization: Bearer $PITHLAB_KEY" \n  -H "Content-Type: application/json" \n  -d '{"mode":"payment","balance":5000,"apr":21.99,"payment":200}'

Example response

{
  "ok": true,
  "result": {
    "mode": "payment",
    "months": 34,
    "payment": 200,
    "totalInterest": 1748.71,
    "totalPaid": 6748.71,
    "text": "Paying 200.00 a month clears 5,000.00 in 2 years 10 months (34 payments): total interest 1,748.71, total paid 6,748.71"
  }
}