{
  "name": "multifamily-online",
  "title": "Stackup: Fannie, Freddie and HUD multifamily loan sizing",
  "description": "Free, read-only MCP server from multifamily.online that sizes a 5+ unit apartment loan under Fannie Mae DUS and Small Loans, Freddie Mac Optigo Conventional and Conventional Small, and HUD 223(f), 221(d)(4) and 223(a)(7), using each program's published LTV, DSCR, caps and terms and the site's own sizing engine. Also returns each program's limits with its agency source and date, and the Treasury and SOFR readings rates are built on. Estimates only, not quotes. No authentication.",
  "registryDescription": "Size an apartment loan under Fannie Mae, Freddie Mac and HUD published limits, side by side.",
  "version": "1.0.0",
  "url": "https://multifamily.online/mcp",
  "transport": {
    "type": "streamable-http",
    "url": "https://multifamily.online/mcp"
  },
  "remotes": [
    {
      "type": "streamable-http",
      "url": "https://multifamily.online/mcp"
    }
  ],
  "authentication": {
    "type": "none",
    "required": false
  },
  "protocolVersions": [
    "2026-07-28",
    "2025-11-25",
    "2025-06-18",
    "2025-03-26",
    "2024-11-05"
  ],
  "capabilities": {
    "tools": {
      "listChanged": false
    }
  },
  "tools": [
    {
      "name": "compare_programs",
      "title": "Size one apartment building under Fannie Mae, Freddie Mac and HUD loans",
      "description": "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 SBA, bank, CMBS, bridge and DSCR loans are listed as ineligible or unpublished.",
      "readOnly": true
    },
    {
      "name": "get_program_terms",
      "title": "Published terms for a multifamily loan program",
      "description": "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.",
      "readOnly": true
    },
    {
      "name": "get_treasury_yields",
      "title": "Treasury yields and SOFR behind agency multifamily rates",
      "description": "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).",
      "readOnly": true
    }
  ],
  "documentation": "https://multifamily.online/developers/",
  "websiteUrl": "https://multifamily.online/developers/",
  "publisher": {
    "name": "Stackup (Janover Capital LLC)",
    "url": "https://multifamily.online/",
    "contact": "desk@janover.co"
  },
  "privacyPolicy": "https://multifamily.online/privacy/",
  "termsOfService": "https://multifamily.online/terms/",
  "license": "Treasury and New York Fed data under their publishers' terms; the program-book compilation is CC BY 4.0 (credit \"Data: Stackup (multifamily.online)\" with a link)",
  "icon": "https://multifamily.online/icon-512.png"
}