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Tools.Town
Free Online Tools for Everyone

PPF Calculator API

Calculate Public Provident Fund maturity, interest earned, and year-by-year balance at the 7.1% Govt of India rate (FY 2025–26).

Category: Finance Endpoint: /v1/finance/ppf-calculator Method: POST Auth: API Key

Fast & Accurate

Get precise results instantly.

Easy Integration

Simple REST API with JSON response.

Developer Friendly

Clear docs and SDK examples.

Free to Start

1,000 free requests/month.

Endpoint

All requests should be made to the following endpoint:

POST https://api.tools.town/v1/finance/ppf-calculator

Authentication

This endpoint requires an API Key. Include your API key in the request header.

Authorization: Bearer YOUR_API_KEY
You can get your API key from your dashboard.

Request Parameters

Send a POST request with JSON body.

Parameter Type Required Description Example
yearlyDeposit number Annual PPF contribution (₹500–₹1,50,000). 150000
years number Tenure in years (min 15 for standard PPF). 15
ratePct number Annual interest rate (%). 7.1

Example Request

curl -X POST "https://api.tools.town/v1/finance/ppf-calculator" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "yearlyDeposit": 150000,
    "years": 15,
    "ratePct": 7.1
  }'

Error Codes

Code Meaning
400 Bad Request — missing or invalid parameter
401 Unauthorized — API key missing or invalid
429 Rate limit exceeded — free tier: 1,000 requests/month
500 Internal Server Error — try again or contact support