Is the Free Gratuity 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/gratuity?

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

Taxation & Salary APIWeb Calculator UI

Free Gratuity Calculator API (2026)

API calculating gratuity using 15/26 15 days last drawn salary formula.

Interactive API Playground & Live Test

GET/api/v1/gratuity

Zero Auth • Open CORS

Query Parameters

basicnumber • required

Last drawn monthly basic + DA in ₹

yearsnumber • required

Years of continuous service

coveredboolean • optional

Set "true" if covered under Gratuity Act (15/26 formula)

curl -X GET "https://fincalculator.in/api/v1/gratuity?basic=80000&years=10&covered=true" \
  -H "Accept: application/json"

Live JSON Response (HTTP 200 OK)

Click "Execute Live API Request" below...

Request Parameters Schema

Parameter	Type	Required	Description / Notes
basic	number	Required	Last drawn monthly basic + DA in ₹
years	number	Required	Years of continuous service
covered	boolean	Optional	Set "true" if covered under Gratuity Act (15/26 formula)

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