Investment APIWeb Calculator UI
Free Recurring Deposit (RD) Calculator API (2026)
Public API for bank and post office recurring deposit maturity calculations.
Interactive API Playground & Live Test
GET
/api/v1/compoundingQuery Parameters
Monthly deposit in ₹
Annual RD interest rate %
Tenure in years
curl -X GET "https://fincalculator.in/api/v1/compounding?contribution=5000&rate=7&years=3" \
-H "Accept: application/json"Live JSON Response (HTTP 200 OK)
Click "Execute Live API Request" below...Request Parameters Schema
| Parameter | Type | Required | Description / Notes |
|---|---|---|---|
| contribution | number | Required | Monthly deposit in ₹ |
| rate | number | Required | Annual RD interest rate % |
| years | number | Required | Tenure in years |