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Worth Sheet: apartment building value at today's loan rates

forsale.multifamily/multifamily-forsalemultifamily.forsalestreamable-httpv1.2026.1101.1Scanned

Apartment building value and loan-supported price at the live 10-year Treasury rate.

3 tools: 2 change things and 1 only read.

Tools: 0 delete, 0 irreversible, 2 write, 1 read.
  • Reads private data · 1
  • Reads text others write · 0
  • Can send data out · 0
  • 1 finding

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.

3 tools

Changes things 2Claude Code: ask
  • rate_sensitivityFor an apartment building's net operating income, the price a financed buyer can carry and the income-limited loan size at a ladder of 10-year Treasury levels around today's (defau…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
    For an apartment building's net operating income, the price a financed buyer can carry and the income-limited loan size at a ladder of 10-year Treasury levels around today's (default -100 to +100 bp), at 80% LTV and 1.25x DSCR by default. Answers "what is my building worth to a buyer if rates drop half a point?".

    Annotations the server declares

    • title: How loan rates move what a buyer can pay
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • value_at_rateRuns the Worth Sheet valuation worksheet for a 5+ unit apartment building: from a rent roll and a year of expenses (or a known NOI) it returns NOI, expense ratio, value across your…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 "value_at_rate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "run": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Runs the Worth Sheet valuation worksheet for a 5+ unit apartment building: from a rent roll and a year of expenses (or a known NOI) it returns NOI, expense ratio, value across your cap rate range, the price a financed buyer can carry at the latest 10-year Treasury plus a lender spread (80% LTV, 1.25x DSCR by default), per-unit value, and the refinance loan the income supports against your balance. An estimate from your numbers, not an appraisal.

    Annotations the server declares

    • title: Value an apartment building at today's loan rates
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 1Show 1 read-only tool
  • get_rates_and_loan_limitsThe latest 5-, 7- and 10-year Treasury par yields and overnight SOFR the site has, each with its as-of date, the readings a week and a month earlier when the daily feed has them, a…Reads private dataNo findings

    Why it is in this group

    • The name "get_rates_and_loan_limits" says "get": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "note": it reads notes.
    Description, as the server wrote it
    The latest 5-, 7- and 10-year Treasury par yields and overnight SOFR the site has, each with its as-of date, the readings a week and a month earlier when the daily feed has them, and publisher link; plus the loan limits the worksheet uses (80% max LTV, 1.25x min DSCR from the Fannie Mae and Freddie Mac term sheets) and the spread note.

    Annotations the server declares

    • title: Today's Treasury yields and agency loan limits
    • 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 untrusted-input or outbound.

Reads private data1
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
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.

1 warn
  • The server marks "value_at_rate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "run": a word for a change.

    What this check looks for

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 multifamily-forsale https://multifamily.forsale/mcp
claude mcp add --transport http multifamily-forsale https://multifamily.forsale/mcp

Run 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.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__multifamily-forsale__get_rates_and_loan_limits"
    ],
    "ask": [
      "mcp__multifamily-forsale__value_at_rate",
      "mcp__multifamily-forsale__rate_sensitivity"
    ],
    "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 multifamily-forsale. Review it before you use it.

Capability tags behind 1 rule
  • mcp__multifamily-forsale__get_rates_and_loan_limits private-data

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/forsale.multifamily/multifamily-forsale/verify?hash=0c3225f1a65d2765f556b6ec6c9ab0bf89b7dd74a0f07279ef8fe4df1859442f" | jq -e '.changed == false'

Pinned hash 0c3225f1a65d, 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/forsale.multifamily/multifamily-forsale/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Badge

anlyon.dev badge for forsale.multifamily/multifamily-forsale
[![anlyon.dev](https://anlyon.dev/badge/forsale.multifamily/multifamily-forsale.svg)](https://anlyon.dev/servers/forsale.multifamily/multifamily-forsale)

Source: MCP Registry. Synced Nov 1, 2026, 23:17 UTC.