Investment APIWeb Calculator UI

Free Mutual Fund SIP Calculator API (2026)

The FinCalculator SIP API allows developers, advisors, and fintech platforms to calculate Systematic Investment Plan (SIP) returns with support for multi-frequency compounding in India.

Interactive API Playground & Live Test

GET/api/v1/sip

Zero Auth • Open CORS

Query Parameters

investmentnumber • required

Per-period investment amount in ₹

interestnumber • required

Expected annual % return rate

yearsnumber • required

Investment duration in years

frequencystring • optional

daily | weekly | monthly | quarterly | yearly (default: monthly)

curl -X GET "https://fincalculator.in/api/v1/sip?investment=10000&interest=12&years=10&frequency=monthly" \
  -H "Accept: application/json"

Live JSON Response (HTTP 200 OK)

Click "Execute Live API Request" below...

Request Parameters Schema

Parameter	Type	Required	Description / Notes
investment	number	Required	Per-period investment amount in ₹
interest	number	Required	Expected annual % return rate
years	number	Required	Investment duration in years
frequency	string	Optional	daily \| weekly \| monthly \| quarterly \| yearly (default: monthly)

Related Investment APIs

GET /api/v1/goal-sipFree Goal-Based Reverse SIP Calculator API GET /api/v1/step-up-sipFree Step-Up SIP Calculator API GET /api/v1/swpFree Systematic Withdrawal Plan (SWP) Calculator API GET /api/v1/cagrFree CAGR (Compound Annual Growth Rate) API

Frequently Asked Questions (FAQs)

Is the Free Mutual Fund SIP 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/sip?

Endpoints are cached at the edge for 24 hours. There are no restrictive rate limits for standard web traffic and mobile applications.