Roi Calculator API

POST https://api.findutils.com/api/tools/roi-calculator/execute

Return the return on investment: total invested (amount plus extra costs), net gain, simple ROI percent, annualized ROI percent, years to double at that rate (rule of 72), gain per year, and the percentage gain on the base amount alone.

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Request body

application/json

investment_amount

number required

Amount invested. Must be > 0.
final_value

number required

Value of the investment at the end.
investment_years

number optional

Holding period in years. Must be > 0. Default: 1.
additional_costs

number optional

Fees, taxes, or other costs added to the investment. Default: 0.

Example arguments

Verified

{
  "investment_amount": 10000,
  "final_value": 15000,
  "investment_years": 3,
  "additional_costs": 0
}

curl -X POST https://api.findutils.com/api/tools/roi-calculator/execute \
  -H "Content-Type: application/json" \
  -d '{
    "investment_amount": 10000,
    "final_value": 15000,
    "investment_years": 3,
    "additional_costs": 0
  }'

const response = await fetch('https://api.findutils.com/api/tools/roi-calculator/execute', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({"investment_amount":10000,"final_value":15000,"investment_years":3,"additional_costs":0}),
});
const data = await response.json();

import requests

response = requests.post(
    "https://api.findutils.com/api/tools/roi-calculator/execute",
    json={"investment_amount":10000,"final_value":15000,"investment_years":3,"additional_costs":0},
)
data = response.json()

$ch = curl_init('https://api.findutils.com/api/tools/roi-calculator/execute');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS => '{"investment_amount":10000,"final_value":15000,"investment_years":3,"additional_costs":0}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

Also an MCP tool

Call roi_calculator from Claude, Cursor or any MCP client. Same arguments, same output.

https://mcp.findutils.com

MCP reference

Rate limit: 60 a minute, per IP
Auth: None
REST id: roi-calculator
MCP name: roi_calculator
Category: Finance
Machine-readable: openapi.json · markdown.md

Request body

Example arguments

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