mortgage-amortization.underscoredone.com
answeringGive 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.
- Endpoint
- https://mortgage-amortization.underscoredone.com/calculate
- Price
- $0.01 / call
- Settles via
- cdp
- Category
- —
- Last seen live
- Wed, 09 Sep 2026 05:29:15 UTC
- Last probed
- Wed, 09 Sep 2026 05:29:15 UTC
- First indexed
- Tue, 08 Sep 2026 05:22:22 UTC
- Sources
- cdp-x402
Probe history
Last 2 probes, newest on the right. 100% answered with a payment challenge.
| When | Result | Method | Status | Latency |
|---|---|---|---|---|
| Wed, 09 Sep 2026 05:29:14 UTC | challenge | http-402 | 402 | 52 ms |
| Tue, 08 Sep 2026 05:22:59 UTC | challenge | http-402 | 402 | 349 ms |
JSON: /api/v1/services/mortgage-amortization.underscoredone.com. Own this service? Update the listing.