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Mortgage & Loan Amortization Cal · mortgage-amortization.underscoredone.com

Give this API a loan amount, an interest rate, and a repayment term…

And it returns the exact monthly payment plus a full month-by-month schedule: interest paid, principal repaid, and balance remaining for every payment. Ask what an extra $300 a month, or a $10,000 lump sum in month 24, would do and it reports the months and interest saved. Every figure uses banker's rounding at pinned precision, so two correct systems agree to the cent. You supply the rate; the API does the math.

Ready now4 calls · 3 buyers in 30 days

Input

Sample response

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

response7 keys
api_version"1.0.0"
inputs_echo4 keys
annual_rate_percent6.5
principal400000
start_date"2026-07-01"
term_months360
rounding3 keys
decimals2
final_payment_adjustedtrue
mode"half_even"
schedule1 item
scheduled_payment2528.27
summary5 keys
final_payment2530.88
payoff_date"2056-06-01"
scheduled_term_months360
total_interest510179.81
total_paid910179.81
with_extra_payments7 keys
actual_term_months257
final_payment200.36
interest_saved175942.33
months_saved103
payoff_date"2047-11-01"
total_interest334237.48
total_paid734237.48
responseobject, 7 keys
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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
4
Buyers, last 30 days
3
Last paid call

Reported by the x402 directory.

A$0.015 per call