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SiteCheck · api.sitecheck-api.workers.dev

Loan and investment calculator in exact cents, no outside source…

Mode=annuity: monthly payment, total interest and the full amortisation schedule (up to 600 months). mode=compound: future value of an initial sum plus monthly contributions. mode=npv or irr: discount or internal rate of return of a list of cashflows (up to 200, the first at time 0). Rates are percentages from 0 to 100 a year (per period for npv and irr); terms up to 50 years.

Ready now2 calls · 2 buyers in 30 days

Input

Comma-separated cashflows for npv and irr, e.g. -1000,300,400,500 (first at time 0)
Monthly contribution for compound, up to two decimals (optional)
annuity (default), compound, npv or irr
Loan amount (annuity) or starting sum (compound), up to two decimals (optional for compound)
Annual rate in percent, 0 to 100 (annuity, compound); rate per period in percent for npv (-99 to 1000)
Term in months, 1 to 600, instead of termYears
Term in years, up to 50 (annuity, compound)

Sample response

Published by the provider. Your run returns a fresh response.

response12 keys
checkedAt"2026-10-15T13:40:01.487Z"
disclaimer"Information only, not financial advice."
lastPayment1580.55
mode"annuity"
monthlyPayment1580.17
months360
principal250000
rate6.5
schedule3 items
source"Computed here in pure code (annuity, monthly compounding, NPV and IRR formulas); no outside source"
totalInterest318861.58
totalPaid568861.58
responseobject, 12 keys
Your agent can do this on its own
Add the MCP URL in Claude Code, Cursor or Codex. Your agent can run Tools within its spending limits, or ask for approval each time. Connect your agent

Connect your agent

Add one MCP URL and your agent can find and run this tool within its spending limits. Choose “Ask each time” if you want to approve every Call.

MCP URL

https://app.aecon.ai/mcp
Terminalbash
claude mcp add --transport http --scope user agentic-economy "https://app.aecon.ai/mcp"

In Claude Code, open /mcp, select agentic-economy, then choose Authenticate.

Track record

Paid calls, last 30 days
2
Buyers, last 30 days
2
Last paid call

Reported by the x402 directory.

A$0.0015 per call