Stackup: Fannie, Freddie and HUD multifamily loan sizing MCP Server

by multifamily Your server? Claim it

answering

Stackup: Fannie, Freddie and HUD multifamily loan sizing is answering right now. Last checked 9 min ago. It exposes 3 tools.

Size an apartment loan under Fannie Mae, Freddie Mac and HUD published limits, side by side.

Uptime history 22 hours of history

22 hours agonow

100.0%

Uptime 24h

82 of 82 checks

Tools

read from the server

233 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Stackup: Fannie, Freddie and HUD multifamily loan sizing every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

Settings → Connectors → Add custom connector, then paste this address

https://multifamily.online/mcp

~/.codex/config.toml

[mcp_servers.multifamily-online]
url = "https://multifamily.online/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "multifamily-online": {
      "url": "https://multifamily.online/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "multifamily-online": {
      "type": "http",
      "url": "https://multifamily.online/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

compare

compare_programs

Runs the multifamily.online comparison app on one 5+ unit building: for Fannie Mae DUS and Small Loans, Freddie Mac Optigo Conventional and Conventional Small, and HUD 223(f), 221(d)(4) and 223(a)(7), returns whether it fits the published limits (or why not), max loan by LTV/LTC and by DSCR, the binding limit, estimated monthly payment incl. HUD MIP, term, and warnings, ranked by max loan. SBA, bank, CMBS, bridge and DSCR loans are listed as ineligible or unpublished.

program

get_program_terms

Published limits for one multifamily loan program or all of them, as multifamily.online lists them: max LTV or LTC, minimum DSCR, term and amortization, prepayment, recourse, structure, HUD mortgage insurance where it applies, and the agency source document with its date and URL. Covers Fannie Mae DUS and Small Loans, Freddie Mac Optigo Conventional and Conventional Small, HUD 223(f), 221(d)(4), 223(a)(7), SBA, bank, CMBS, bridge and DSCR loans.

treasury

get_treasury_yields

The latest 5-, 7- and 10-year U.S. Treasury par yields and overnight SOFR that the multifamily.online app builds its example rate on, each with its as-of date, the reading a week and a month earlier when available, freshness status and the publisher link (U.S. Treasury, New York Fed).

Endpoints

URL	Transport	State	Latency	Checked
https://multifamily.online/mcp	streamable-http	answering	123 ms	9 min ago

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Stackup: Fannie, Freddie and HUD multifamily loan sizing — questions

Answers built from our own checks of this server.

What can Stackup: Fannie, Freddie and HUD multifamily loan sizing do?

It exposes 3 tools, read directly from the server on our last check. Among them: compare_programs, get_program_terms, get_treasury_yields. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Stackup: Fannie, Freddie and HUD multifamily loan sizing working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 82 of 82 checks got a reply (100.0%), average response time 233 ms. The bar chart above shows every period we have measured.

How do I connect Stackup: Fannie, Freddie and HUD multifamily loan sizing?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Stackup: Fannie, Freddie and HUD multifamily loan sizing need an API key?

No. Stackup: Fannie, Freddie and HUD multifamily loan sizing completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Stackup: Fannie, Freddie and HUD multifamily loan sizing?

It answers our handshake in 233 ms on average, which is faster than 61% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.