Finance Utilities

Future Value

Calculates the future value of investments using compound interest formulas. Access via MCP in Cursor or Windsurf, or call GET /v1/finance/future-value with present value, interest rate, and time period. Returns precise monetary projections for financial planning — $1000 at 5% annually becomes $1628.89 after 10 years. Essential for AI agents building investment calculators.

API Endpoint

GET /v1/finance/future-value

Code Examples

curl "https://tinyfn.io/v1/finance/future-value" \
  -H "X-API-Key: YOUR_API_KEY"

const response = await fetch('https://tinyfn.io/v1/finance/future-value', {
  headers: { 'X-API-Key': 'YOUR_API_KEY' }
});
const data = await response.json();
console.log(data);

import requests

response = requests.get('https://tinyfn.io/v1/finance/future-value',
    headers={'X-API-Key': 'YOUR_API_KEY'})
data = response.json()
print(data)

Use via MCP

Add to your AI agent

Connect your AI agent (Claude, Cursor, Windsurf, etc.) to TinyFn's finance tools:

{
  "mcpServers": {
    "tinyfn-finance": {
      "url": "https://tinyfn.io/mcp/finance",
      "headers": {
        "X-API-Key": "YOUR_API_KEY"
      }
    }
  }
}

Learn more about MCP setup →

Related Tools

FAQ

How do I calculate future value with compound interest?

Pass present_value, annual_rate (as decimal like 0.05 for 5%), and years. The tool applies the standard compound interest formula FV = PV(1+r)^n.

Can MCP agents use this for financial planning workflows?

Yes, AI agents in Cursor and Claude Code can call this tool to build retirement calculators, investment projections, or savings goal trackers with reliable math.

What's the difference between simple and compound interest calculations?

This tool uses compound interest where earnings generate their own returns. Simple interest only pays on the principal — compound grows exponentially over time.

Does it handle monthly or quarterly compounding periods?

Check the API documentation for compounding frequency options. Most implementations support annual, monthly, or continuous compounding through additional parameters.

What format does the future value result return?

Returns a numeric value representing the final amount. For $1000 at 7% over 5 years, you'd get approximately 1402.55 as the future value.

Try Future Value Now

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