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Stackup: Fannie, Freddie and HUD multifamily loan sizing

R0· no sign-in

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

v1.2026.1101.0 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality100strong
Trust82of 100
Uptime, 30 days98%
Latency p50323 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "multifamily-online": {
      "type": "http",
      "url": "https://multifamily.online/mcp"
    }
  }
}
claude mcp add --transport http multifamily-online https://multifamily.online/mcp
[mcp_servers.multifamily-online]
url = "https://multifamily.online/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "multifamily-online": {
      "type": "remote",
      "url": "https://multifamily.online/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "multifamily-online": {
      "type": "http",
      "url": "https://multifamily.online/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=multifamily-online&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbXVsdGlmYW1pbHkub25saW5lL21jcCJ9"
}
{
  "servers": {
    "multifamily-online": {
      "type": "http",
      "url": "https://multifamily.online/mcp"
    }
  }
}
{
  "mcpServers": {
    "multifamily-online": {
      "httpUrl": "https://multifamily.online/mcp"
    }
  }
}
extensions:
  "multifamily-online":
    enabled: true
    name: "multifamily-online"
    type: streamable_http
    uri: "https://multifamily.online/mcp"
    timeout: 300

Quality 100 / 100strong

protocol100 · weight 25
  • pass
    protocol.modernsupports 2026-07-28 (server/discover)
  • pass
    protocol.statelessanswers without a session
  • pass
    protocol.transportstreamable HTTP
  • pass
    protocol.list_ttltool list is cacheable (ttlMs 3600000)
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations3 of 3 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 1,529 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
  • pass
    tools.hidden_textno hidden text in tool names, descriptions, schemas or annotations
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
  • pass
    stability.new_linksno tool change named a new site
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

3 tools, about 1,529 tokens to load them all · tool set 94b446f85fe3 · checked 2026-11-14 07:03 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 82 / 100

no-repository
provenance55
liveness99
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-98% +updated-12d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://multifamily.online/mcp streamable-httpnoneyes98%323 ms2026-07-28, 2025-11-25, 2025-06-18, 2025-03-26, 2024-11-052026-11-14

Tools (3)

compare_programsread-onlyRuns 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.
get_program_termsread-onlyPublished 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.
get_treasury_yieldsread-onlyThe 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).

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "online.multifamily/multifamily-online",
  "icons": [
    {
      "src": "https://multifamily.online/icon-512.png",
      "mimeType": "image/png"
    }
  ],
  "title": "Stackup: Fannie, Freddie and HUD multifamily loan sizing",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://multifamily.online/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.2026.1101.0",
  "websiteUrl": "https://multifamily.online/developers/",
  "description": "Size an apartment loan under Fannie Mae, Freddie Mac and HUD published limits, side by side."
}