Owners and accountants need three things for a loan or lease. A payment schedule, the interest and principal split of each payment, and the journal entries that go with it.
Claude can calculate a loan payment, but it keeps no record of your loans. With the Amortization server, Claude stores each loan or lease, builds the full schedule, gives the interest and principal journal per month and prices early repayment.
What you get
Check a bank's loan quote
Owner of a bakery in Krakow
| Tool call | What it did |
|---|---|
| loan_schedule | Builds the 60-period schedule without storing anything |
A payment of EUR 483.32 a month and about EUR 3,999 of interest over five years, with the balance for every month.
Free to start. Amortization Pro is $19 once. Free vs Pro
Claude can compute a level payment and a schedule for one loan if the inputs are clear, and it's usually right. It keeps no register of your loans, so it can't tell you next month what's outstanding across all of them.
Amortization stores each loan or lease, builds the schedule per period, gives the journal entry for any period or month, prices early repayment, and reports total debt outstanding at a date.
Example scenarios built on the real tools of Amortization. Names and amounts are invented.
Record an equipment loan: EUR 18,000 at 7.5% a year over 48 months. What's the monthly payment, and how much interest do I pay in 2027?
The monthly payment, a 48-row schedule, and the 2027 interest total read from it.
The bank offers EUR 25,000 over 60 months at 6% a year. What's the monthly payment and how much interest do I pay in total?
A payment of EUR 483.32 a month and about EUR 3,999 of interest over five years, with the balance for every month.
About 20 min saved (estimate)
I want to pay GBP 5,000 extra off my van loan next month and keep the same payment. How much interest do I save?
The new end date, the periods saved and the interest saved, next to the old schedule. Pro feature.
About 30 min saved (estimate)
Every example here works on the free tier. One $39 key removes the limits on all of them. Pricing
Paste one URL into Claude.ai, Claude Desktop, Cursor or VS Code. No install, no account.
1. Get a free token (30 days, 600 calls an hour)
curl -s -X POST https://mcp.zovo.one/mcp/token
2. Paste this URL as a custom connector
https://mcp.zovo.one/mcp/amortization/t/<token>
Or run it locally (Node.js 18+)
npx -y @theluckystrike/mcp-amortization
| Free ($0, no key) | Pro ($19 once) |
|---|---|
| Unlimited schedules with loan_schedule | Unlimited loans |
| Up to 3 loans in the register | Early repayment (loan_repay_early) |
| loan_delete gives a slot back | Monthly journal (loan_journal) |
| Debt report (loans_report) |
servers/amortization/src/index.ts:25 (FREE_LOANS = 3), :280, :326, :495 (requirePro); https://mcp.zovo.one/s/amortization
Fixed asset register with bundled MACRS, HMRC and Polish KST tables. Schedules and journals from one prompt. Uses the Asset Register server. 7 tools.
You get: Report Three Way MatchMatch supplier invoice lines to purchase orders and receipts by SKU with tolerances. Explainable exceptions. Uses the Three Way Match server. 6 tools.
You get: Exception report Duplicate Invoice CheckReview explainable duplicate invoice candidates in a local batch. See why each pair matched. Uses the Duplicate Invoice Check server. Free tier, Pro $19 once.
You get: CSVAmortization Pro: $19 once