Loans & EMI APIWeb Calculator UI
Free Loan Prepayment Calculator API (2026)
API simulating loan prepayment schedules and interest savings.
Interactive API Playground & Live Test
GET
/api/v1/loan-prepaymentQuery Parameters
Loan principal in ₹
Interest rate %
Tenure in years
Prepayment amount in ₹
one-time | monthly | quarterly | yearly (default: one-time)
curl -X GET "https://fincalculator.in/api/v1/loan-prepayment?principal=5000000&rate=8.5&years=20&prepayAmount=500000&mode=one-time" \
-H "Accept: application/json"Live JSON Response (HTTP 200 OK)
Click "Execute Live API Request" below...Request Parameters Schema
| Parameter | Type | Required | Description / Notes |
|---|---|---|---|
| principal | number | Required | Loan principal in ₹ |
| rate | number | Required | Interest rate % |
| years | number | Required | Tenure in years |
| prepayAmount | number | Required | Prepayment amount in ₹ |
| mode | string | Optional | one-time | monthly | quarterly | yearly (default: one-time) |
Related Loans & EMI APIs
GET /api/v1/emiFree Home Loan & Personal Loan EMI Calculator APIGET /api/v1/home-loan-balance-transferFree Home Loan Balance Transfer Calculator APIGET /api/v1/loan-part-paymentFree Home Loan Part Payment Options Calculator APIGET /api/v1/home-loan-prepayment-vs-sipFree Home Loan Prepayment vs Mutual Fund SIP Calculator API
Frequently Asked Questions (FAQs)
Is the Free Loan Prepayment Calculator API free to use in production apps?
Yes! All FinCalculator REST APIs are completely free, zero-auth, open-CORS, and edge-cached for high performance across global web and mobile applications.
What is the rate limit for /api/v1/loan-prepayment?
Endpoints are cached at the edge for 24 hours. There are no restrictive rate limits for standard web traffic and mobile applications.