CalcX Investment Calculator API

API Overview

In today’s dynamic financial landscape, making informed investment decisions is crucial. To assist developers in creating robust investment applications, we are excited to introduce the CalcX Investment Calculator API. This comprehensive API empowers users to effortlessly calculate various investment metrics, such as simple interest, compound interest, return on investment (ROI), capital gains tax, and annual percentage yield (APY). By harnessing the power of the Investment API, developers can unlock new levels of precision and accuracy in their investment calculations, enabling them to make well-informed decisions and optimize their investment strategies.

The API uses currency rates provided by the European Central Bank (ECB) for currency conversion. The API also supports a wide range of programming languages, including but not limited to: C, Clojure, C#, GO, Java, JavaScript, Kotlin, Node.js, Objective-C, OCaml, PHP, PowerShell, Python, R, RapidQL, Ruby, Shell, and Swift.

Supported Currencies:

NOK (Norwegian Krone), EUR (Euro), HKD (Hong Kong Dollar), CZK (Czech Koruna), THB (Thai Baht), CHF (Swiss Franc), USD (United States Dollar), ISK (Icelandic Króna), GBP (British Pound Sterling), JPY (Japanese Yen), BGN (Bulgarian Lev), CNY (Chinese Yuan), IDR (Indonesian Rupiah), TRY (Turkish Lira), NZD (New Zealand Dollar), SGD (Singapore Dollar), DKK (Danish Krone), AUD (Australian Dollar), BRL (Brazilian Real), ILS (Israeli New Shekel), SEK (Swedish Krona), CAD (Canadian Dollar), HUF (Hungarian Forint), ZAR (South African Rand), MYR (Malaysian Ringgit), KRW (South Korean Won), MXN (Mexican Peso), INR (Indian Rupee), PHP (Philippine Peso), PLN (Polish Złoty) and RON (Romanian Leu).

Status Codes:

200: Successful calculation and response.

400: Invalid request or missing required parameters.

500: Internal server error.

Error Handling

If an error occurs during the calculation or processing of the request, the API will respond with an error message and an appropriate status code.

Endpoints

/calculate

/calculate/post

/calculate/batch

Live API

Share API

Calculate Investment

These endpoints allow you to calculate various investment metrics such as simple interest, compound interest, investment returns, return on investment (ROI), capital gains tax, and annual percentage yield (APY). It also supports currency conversion for the calculated results.

Parameters

Parameter	Type	Required	Description
principal	decimal	Yes	The principal amount of the investment.
rate	decimal	Yes	The interest rate of the investment.
time	int	Yes	The time period of the investment in months.
compounding	string	Optional	The compounding frequency. Default value is `yearly` . Valid options are `yearly` , `semi-annually` , `quarterly` , and `monthly` .
format	string	Optional	If to format the response. Default value is `yes` . Valid options are `yes` and `no` .
in_currency	string	Optional	The currency of the principal amount and investment returns. Default value is `USD` . See the list of supported currencies above.
to_currency	string	Optional	The currency to which the results should be converted. Default value is `USD` . See the list of supported currencies above.

Method: GET

/calculate

HTTP Request Example:

GET /calculate?principal=50000.00&rate=6.5&time=36&in_currency=USD&to_currency=USD&compounding=yearly&format=yes HTTP/1.1 
X-Rapidapi-Key: SIGN-UP-FOR-KEY 
X-Rapidapi-Host: calcx-investment-api.p.rapidapi.com 
Host: calcx-investment-api.p.rapidapi.com

Method: POST

/calculate/post

HTTP Request Example:

POST /calculate/post HTTP/1.1 
Content-Type: application/json 
X-Rapidapi-Key: SIGN-UP-FOR-KEY 
X-Rapidapi-Host: calcx-investment-api.p.rapidapi.com 
Host: calcx-investment-api.p.rapidapi.com 
Content-Length: 163 
{ 
"principal": 50000, 
"rate": 6.5, 
"time": 12, 
"compounding": "quarterly", 
"format": "yes", 
"in_currency": "USD", 
"to_currency": "USD" 
}

Format Response YES:

{ 
"apy": "6.50%", 
"cg_tax": "$161.87", 
"compound_interest": "$10397.48", 
"compounding_freq": "yearly", 
"investment_returns": "$60397.48", 
"principal": "$50000.00", 
"principal_in": "USD", 
"rate": "6.50%", 
"results_in": "USD", 
"roi": "$20.79", 
"simple_interest": "$9750.00", 
"time_months": "36 M", 
"time_years": "3.00 Y" 
}

Format Response NO:

{ 
"apy": "6.50", 
"cg_tax": "161.87", 
"compound_interest": "10397.48", 
"compounding_freq": "yearly", 
"investment_returns": "60397.48", 
"principal": "50000.00", 
"principal_in": "USD", 
"rate": "6.50", 
"results_in": "USD", 
"roi": "20.79", 
"simple_interest": "9750.00", 
"time_months": "36", 
"time_years": "3.00" 
}

/calculate/batch

HTTP Request Example:

POST /calculate/batch HTTP/1.1 
Content-Type: application/json 
X-Rapidapi-Key: SIGN-UP-FOR-KEY 
X-Rapidapi-Host: calcx-investment-api.p.rapidapi.com 
Host: calcx-investment-api.p.rapidapi.com

Content-Length: 301
[
{
"principal": 1000,
"rate": 5,
"time": 12,
"to_currency": "EUR",
"in_currency": "USD",
"compounding": "monthly",
"format": "yes"
},
{
"principal": 5000,
"rate": 7,
"time": 24,
"format": "no"
}
]

Response:

[ 
{ 
"apy": "5.12%", 
"cg_tax": "€0.27", 
"compound_interest": "€46.94", 
"compounding_freq": "monthly", 
"investment_returns": "€964.46", 
"principal": "$1000", 
"principal_in": "USD", 
"rate": "5.00%", 
"results_in": "EUR", 
"roi": "€4.69", 
"simple_interest": "€45.88", 
"time_months": "12 M", 
"time_years": "1.00 Y" 
}, 
{ 
"apy": 7, 
"cg_tax": 6.12, 
"compound_interest": 724.5, 
"compounding": "yearly", 
"investment_returns": 5724.5, 
"principal": 5000, 
"principal_in": "USD", 
"rate": 7, 
"results_in": "USD", 
"roi": 14.49, 
"simple_interest": 700, 
"time_months": 24, 
"time_years": 2 
} 
]

Endpoint Response

The response will be a JSON object containing the results for each investment calculation in the same order as they were provided in the request. Each result will have the following properties:

Property	Type	Description
`principal`	string	The principal amount of the investment.
`rate`	string	The interest rate of the investment.
`time_years`	string	The time duration of the investment in years.
`time_months`	number	The time duration of the investment in months.
`compounding_freq`	string	The compounding frequency used.
`simple_interest`	string	The simple interest earned.
`compound_interest`	string	The compound interest earned.
`investment_returns`	string	The total investment returns.
`roi`	string	The return on investment (ROI) in percentage.
`cg_tax`	string	The capital gains tax amount.
`apy`	string	The annual percentage yield (APY) in percentage.
`results_in`	string	The currency in which the results are returned.
`principal_in`	string	The currency of the principal amount.

API Support

If you have any questions or issues with our API, please don’t hesitate to contact us!