Yacht.Loans: boat loan calculator, sales tax and lender terms
loans.yacht/yacht-loansyacht.loansstreamable-httpv1.2026.1101.1Scanned
Boat and yacht loan payments with balloon, tax and insurance; state boat tax; lender terms.
4 tools: 2 change things and 2 only read.
- Reads private data · 0
- Reads text others write · 2
- Can send data out · 0
- 2 findings
Anlyon alternative
2 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
4 tools
Changes things 2Claude Code: ask
calculate_boat_loanRuns the yacht.loans boat loan calculator on your numbers: monthly loan payment, payment with insurance, amount financed, balloon left at the end when payments are figured over mor…1 finding
Why it is in this group
- The description's first verb is "run": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
The server marks "calculate_boat_loan" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "run": a word for a change.
Description, as the server wrote it Runs the yacht.loans boat loan calculator on your numbers: monthly loan payment, payment with insurance, amount financed, balloon left at the end when payments are figured over more years than the term, interest over the term, sales tax (from a state rule on the site or your own rate and cap), cash at closing, and the loan balance at the end of each year.
Annotations the server declares
- title: Boat or yacht loan payment, balloon, tax and insurance
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
estimate_uscg_documentation_feesAdds up the Coast Guard NVDC fees (46 CFR 67.550) to document a financed recreational boat: Abstract of Title, initial certificate or exchange into your name for 1 to 5 years, bill…1 finding
Why it is in this group
- The description's first verb is "add": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
The server marks "estimate_uscg_documentation_fees" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "add": a word for a change.
Description, as the server wrote it Adds up the Coast Guard NVDC fees (46 CFR 67.550) to document a financed recreational boat: Abstract of Title, initial certificate or exchange into your name for 1 to 5 years, bill of sale and preferred mortgage recording by page count, and a certified copy for the lender, plus the full NVDC fee table.
Annotations the server declares
- title: Coast Guard documentation fees for a financed boat
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
Only reads 2Show 2 read-only tools
get_boat_sales_taxThe boat sales or use tax rule yacht.loans has confirmed for a state from its statute or tax agency: rate, cap, exemptions or special tests (such as California's 12-month test or F…Reads text others writeNo findings
Why it is in this group
- The name "get_boat_sales_tax" says "get": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
Description, as the server wrote it The boat sales or use tax rule yacht.loans has confirmed for a state from its statute or tax agency: rate, cap, exemptions or special tests (such as California's 12-month test or Florida's $18,000 cap), the citation, source URL and the date it was read. Omit state to list every state covered.
Annotations the server declares
- title: Boat sales tax rule for a state
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
list_boat_lender_termsWhat banks, credit unions, marine lenders and brokers publish on their own boat loan pages, as read by yacht.loans: rate ranges with their dates, loan amounts, longest terms, down …Reads text others writeNo findings
Why it is in this group
- The name "list_boat_lender_terms" says "list": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
Description, as the server wrote it What banks, credit unions, marine lenders and brokers publish on their own boat loan pages, as read by yacht.loans: rate ranges with their dates, loan amounts, longest terms, down payment and boat age or size rules, with each lender's URL. Filter by lender type or name; not offers and not a ranking.
Annotations the server declares
- title: Boat loan terms lenders publish
- 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.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write2
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
The server marks "calculate_boat_loan" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "run": a word for a change.
The server marks "estimate_uscg_documentation_fees" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "add": a word for a change.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.2026.1101.1. Values in angle brackets are yours to fill in.
claude mcp add --transport http yacht-loans https://yacht.loans/mcpclaude mcp add --transport http yacht-loans https://yacht.loans/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__yacht-loans__get_boat_sales_tax",
"mcp__yacht-loans__list_boat_lender_terms"
],
"ask": [
"mcp__yacht-loans__calculate_boat_loan",
"mcp__yacht-loans__estimate_uscg_documentation_fees"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as yacht-loans. Review it before you use it.
Capability tags behind 2 rules
- mcp__yacht-loans__get_boat_sales_tax untrusted-input
- mcp__yacht-loans__list_boat_lender_terms untrusted-input
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/loans.yacht/yacht-loans/verify?hash=5b47bb522f666853f7bb94495a6c23a02369871dfec3721b5de4b13cf9038c45" | jq -e '.changed == false'Pinned hash 5b47bb522f66, from Nov 1, 2026, 22:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/loans.yacht/yacht-loans/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/loans.yacht/yacht-loans)Source: MCP Registry. Synced Nov 1, 2026, 23:18 UTC.