Stackup MCP

{
  "type": "object",
  "required": [
    "purpose",
    "value",
    "units"
  ],
  "properties": {
    "noi": {
      "type": "number",
      "maximum": 1000000000,
      "minimum": 0,
      "description": "Net operating income in dollars per year (projected stabilized NOI for construction). Omit and give gross_rent + operating_expenses instead to compute it."
    },
    "units": {
      "type": "integer",
      "maximum": 5000,
      "minimum": 5,
      "description": "Number of residential units (5 or more)."
    },
    "value": {
      "type": "number",
      "maximum": 5000000000,
      "minimum": 100000,
      "description": "Purchase price (purchase), current value (refinance or cash-out) or total development cost (construction), in dollars."
    },
    "closing": {
      "enum": [
        "within_60_days",
        "60_to_120_days",
        "flexible"
      ],
      "type": "string",
      "default": "60_to_120_days",
      "description": "When you need to close."
    },
    "purpose": {
      "enum": [
        "purchase",
        "refinance",
        "cash_out_refinance",
        "construction"
      ],
      "type": "string",
      "description": "What the loan is for. construction = new construction or substantial rehab."
    },
    "rate_pct": {
      "type": "number",
      "maximum": 20,
      "minimum": 0.5,
      "description": "Optional all-in interest rate in percent. Replaces Treasury + spread when given."
    },
    "recourse": {
      "enum": [
        "need_non_recourse",
        "recourse_ok"
      ],
      "type": "string",
      "default": "need_non_recourse",
      "description": "Whether you need a non-recourse loan."
    },
    "gross_rent": {
      "type": "number",
      "maximum": 2000000000,
      "minimum": 0,
      "description": "Gross scheduled rent per year, used only when noi is omitted."
    },
    "hold_years": {
      "type": "integer",
      "default": 10,
      "maximum": 40,
      "minimum": 1,
      "description": "How long you plan to keep the loan or property, in years. Drives Freddie Mac term choice and prepayment warnings. Default 10."
    },
    "spread_pct": {
      "type": "number",
      "default": 1.75,
      "maximum": 10,
      "minimum": 0,
      "description": "Spread over the Treasury, in percent. Default 1.75 is the site's example, not a quote; lenders do not publish spreads."
    },
    "stabilized": {
      "type": "boolean",
      "default": true,
      "description": "Whether the property is at stabilized occupancy now."
    },
    "fha_insured": {
      "type": "boolean",
      "default": false,
      "description": "Whether the current loan is already FHA-insured (needed for HUD 223(a)(7))."
    },
    "vacancy_pct": {
      "type": "number",
      "default": 5,
      "maximum": 100,
      "minimum": 0,
      "description": "Vacancy and credit loss as a percent of rent plus other income, used only when noi is omitted. Default 5."
    },
    "assisted_pct": {
      "type": "number",
      "default": 0,
      "maximum": 100,
      "minimum": 0,
      "description": "Percent of units under project-based rental assistance (HAP/Section 8). 90+ gets HUD's assisted limits."
    },
    "desired_loan": {
      "type": "number",
      "default": 0,
      "maximum": 5000000000,
      "minimum": 0,
      "description": "Loan amount you want, in dollars. 0 or omitted = the most each program allows."
    },
    "other_income": {
      "type": "number",
      "default": 0,
      "maximum": 1000000000,
      "minimum": 0,
      "description": "Other income per year (parking, laundry), used only when noi is omitted."
    },
    "property_type": {
      "enum": [
        "market_rate",
        "affordable"
      ],
      "type": "string",
      "default": "market_rate",
      "description": "market_rate, or affordable (rent-restricted, e.g. LIHTC)."
    },
    "fha_years_left": {
      "type": "integer",
      "default": 25,
      "maximum": 40,
      "minimum": 0,
      "description": "Years left on the FHA-insured loan, for 223(a)(7). Default 25."
    },
    "rent_advantage": {
      "type": "boolean",
      "default": true,
      "description": "Affordable only: restricted rents sit below market rents (HUD calls this a rent advantage; it gets HUD's affordable limits). Default true."
    },
    "treasury_tenor": {
      "enum": [
        5,
        7,
        10
      ],
      "type": "integer",
      "default": 10,
      "description": "Treasury tenor the rate is built on: 5, 7 or 10 years. Default 10."
    },
    "current_balance": {
      "type": "number",
      "default": 0,
      "maximum": 5000000000,
      "minimum": 0,
      "description": "Current loan balance in dollars (refinance and cash-out)."
    },
    "amortization_years": {
      "enum": [
        0,
        25,
        30,
        35
      ],
      "type": "integer",
      "default": 0,
      "description": "0 = each program's maximum amortization (the default), or 25, 30 or 35 years for every program."
    },
    "operating_expenses": {
      "type": "number",
      "maximum": 1000000000,
      "minimum": 0,
      "description": "Operating expenses per year, used only when noi is omitted."
    }
  },
  "additionalProperties": false
}

{
  "title": "Size one apartment building under Fannie Mae, Freddie Mac and HUD loans",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

{
  "type": "object",
  "properties": {
    "program": {
      "enum": [
        "fannie_dus",
        "fannie_small",
        "freddie_conventional",
        "freddie_conventional_small",
        "hud_223f",
        "hud_221d4",
        "hud_223a7",
        "sba",
        "bank",
        "cmbs",
        "bridge",
        "dscr",
        "all"
      ],
      "type": "string",
      "default": "all",
      "description": "Which program. Omit or \"all\" for every program."
    }
  },
  "additionalProperties": false
}

{
  "title": "Published terms for a multifamily loan program",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "title": "Treasury yields and SOFR behind agency multifamily rates",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}