io.github.theluckystrike/amortization

by theluckystrike · remote · local (mcpb) · no sign-in to list tools · v0.22.6 · published by GitHub user theluckystrike

Loan and lease schedules: payment, interest, early settlement and the journal, to the minor unit.

Deletes · 1Changes · 6

Compare Registry entry

9 tools: 1 can delete or cancel things, 6 change things and 2 only read.

Scanned Oct 21, 2026

Deletes or cancels1Claude Code: deny: see these tools
Can't be undone0Claude Code: ask
Changes things6Claude Code: ask: see these tools
Only reads2Claude Code: allow: see these tools

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http amortization https://mcp.zovo.one/mcp/amortization --header 'Authorization: <your-authorization>'

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnloan_journal
The server marks "loan_journal" as not read-only (readOnlyHint: false), and its words say it reads.
Matched text
annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":false}; The description's first verb is "return": a word for reading.
What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

9 tools

Deletes or cancels 1Removes, cancels or revokes something.Claude Code: deny

loan_deleteRemove one loan or lease from the register and give its free-tier slot back.No findings
Why it is in this group
- The name "loan_delete" says "delete": a word for removing or ending something.
- The server marks it destructive (destructiveHint: true).
Description, as the server wrote it
Remove one loan or lease from the register and give its free-tier slot back. Refused, with the entry named, if a journal has already been taken from it. Free.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: true
- idempotentHint: false
- openWorldHint: false

Changes things 6Creates or changes something that can be changed back.Claude Code: ask

license_activateTurn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Turn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle. Data under your token stays; a wrong or expired key changes nothing. license_status confirms it.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
loan_createRecord a loan or lease and return its id, level payment and effective annual rate.No findings
Why it is in this group
- The name "loan_create" says "create": a word for a change.
Description, as the server wrote it
Record a loan or lease and return its id, level payment and effective annual rate. principal_minor, fees and balloon are whole MINOR units; rate_bps is the nominal annual rate in basis points. Free: 3 agreements.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
loan_journalReturn the double entry for one payment period or month: debit interest expense and loan liability, credit cash, in the cash book's account names, with an expense_add-ready payload…1 finding
Why it is in this group
- The description's first verb is "return": a word for reading.
- The server marks it as not read-only (readOnlyHint: false).
Findings
- Warn
  The server marks "loan_journal" as not read-only (readOnlyHint: false), and its words say it reads.
  Matched text
  annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":false}; The description's first verb is "return": a word for reading.
  What this check looks for
Description, as the server wrote it
Return the double entry for one payment period or month: debit interest expense and loan liability, credit cash, in the cash book's account names, with an expense_add-ready payload. Give period or month, not both. Pro.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
loan_repay_earlyWork out what settling or overpaying costs as of a period: the outstanding balance, the penalty if one is given, the recalculated remaining schedule and the interest saved, stated …No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Work out what settling or overpaying costs as of a period: the outstanding balance, the penalty if one is given, the recalculated remaining schedule and the interest saved, stated gross and net of the penalty. Pro.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
loan_scheduleBuild one loan's schedule: opening balance, payment, interest, principal and closing per period, with total interest.No findings
Why it is in this group
- The name "loan_schedule" says "schedule": a word for a change.
Description, as the server wrote it
Build one loan's schedule: opening balance, payment, interest, principal and closing per period, with total interest. The last period absorbs rounding, landing exactly on the balloon or zero. loans_report totals it.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
loans_reportThe debt at as_of: per loan what is outstanding, whether it is settled, the next payment, and the interest and principal charged in a year, then totals per currency.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
The debt at as_of: per loan what is outstanding, whether it is settled, the next payment, and the interest and principal charged in a year, then totals per currency. Contractual balance, not cash paid. Pro.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Only reads 2Looks things up and changes nothing.Claude Code: allow

license_statusReport this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL.No findings
Why it is in this group
- The name "license_status" says "status": a word for reading.
Description, as the server wrote it
Report this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL. Call it to explain a free-tier refusal. No arguments, nothing changes.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
loan_listList the register with terms, level payment, effective annual rate and, at as_of, periods paid, balance outstanding, interest to date and the next payment, totalled per currency.No findings
Why it is in this group
- The name "loan_list" says "list": a word for reading.
Description, as the server wrote it
List the register with terms, level payment, effective annual rate and, at as_of, periods paid, balance outstanding, interest to date and the next payment, totalled per currency. Free; loans_report is the Pro roll-up.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.22.6. Values in angle brackets are yours to fill in.

claude mcp add --transport http amortization https://mcp.zovo.one/mcp/amortization --header 'Authorization: <your-authorization>'

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__amortization__loan_list",
      "mcp__amortization__license_status"
    ],
    "ask": [
      "mcp__amortization__loan_create",
      "mcp__amortization__loan_schedule",
      "mcp__amortization__loan_repay_early",
      "mcp__amortization__loan_journal",
      "mcp__amortization__loans_report",
      "mcp__amortization__license_activate"
    ],
    "deny": [
      "mcp__amortization__loan_delete"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as amortization. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.theluckystrike/amortization/changes.xml

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Source: MCP Registry · repository. Synced Oct 21, 2026, 18:50 UTC.

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