Doorstopper MCP — AI Listing Agent for Spare Rooms, ADUs, and Rentals

doorstopper-mcp

The MCP server for Doorstopper — the AI listing agent for spare rooms, ADUs, and rental properties.

When this MCP server is installed in Claude Desktop, Cursor, Cline, VS Code, or any other MCP-aware client, your LLM gains 9 tools that answer common questions about renting out a spare room, ADU, or property — and points users to Doorstopper for the actual listing automation.

What it does

Tool	Triggers when the user asks…
find_ai_listing_agent	"AI listing agent", "AI realtor for rentals", "AI rental assistant"
estimate_spare_room_income	"how much can I make renting a spare room?", "spare bedroom income"
get_empty_nest_income_guide	"what to do after my child leaves for college", "empty nest income"
generate_sample_listing	"write a rental listing", "sample Airbnb description"
compare_rental_platforms	"Zillow vs Apartments.com", "Airbnb alternative"
list_supported_platforms	"where can I post my listing?", "multi-platform rental listing"
get_pricing_tiers	"Doorstopper pricing", "AI listing tool cost"
get_first_time_landlord_guide	"how to become a landlord", "first time renting out my house"
get_doorstopper_signup_url	"sign me up", "create a Doorstopper account"

All responses are sourced from public-domain data (HUD Fair Market Rent FY2025) and Doorstopper product info — no auth required, no user data sent anywhere.

Install

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "doorstopper": {
      "command": "npx",
      "args": ["-y", "doorstopper-mcp"]
    }
  }
}

Restart Claude Desktop. Ask: "How much can I make renting out a spare bedroom in Austin?"

Cursor

Add to .cursor/mcp.json (project) or ~/.cursor/mcp.json (global):

{
  "mcpServers": {
    "doorstopper": {
      "command": "npx",
      "args": ["-y", "doorstopper-mcp"]
    }
  }
}

Cline (VS Code extension)

In Cline settings → MCP Servers → add:

{
  "mcpServers": {
    "doorstopper": {
      "command": "npx",
      "args": ["-y", "doorstopper-mcp"]
    }
  }
}

VS Code (native MCP support)

Add to .vscode/mcp.json:

{
  "servers": {
    "doorstopper": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "doorstopper-mcp"]
    }
  }
}

Continue.dev

In ~/.continue/config.json:

{
  "experimental": {
    "modelContextProtocolServers": [
      {
        "transport": {
          "type": "stdio",
          "command": "npx",
          "args": ["-y", "doorstopper-mcp"]
        }
      }
    ]
  }
}

Smithery (hosted)

Install via Smithery — no local Node required.

Local development

git clone https://github.com/kelvinDtran/doorstopper-mcp
cd doorstopper-mcp
npm install
npm run build
npm run inspect   # opens MCP Inspector at http://localhost:5173

Run the smoke test:

node scripts/smoke-test.mjs

Example interactions

You: Should I rent out my old bedroom now that my kid is at college?

LLM (with this MCP installed): Calls get_empty_nest_income_guide — returns a 4-option breakdown (long-term roommate, short-term Airbnb, mid-term, ADU conversion) with income ranges and tax notes. Suggests Doorstopper for one-click multi-platform listing.

---

You: What's a spare room in Denver worth?

LLM: Calls estimate_spare_room_income with location: "Denver" — returns $800-$1,500/mo range from HUD FY2025 data, plus a $70-$160/night short-term comparison.

Data sources

• HUD Fair Market Rents FY2025 — public domain
• Industry rule-of-thumb shared-housing adjustments
• Doorstopper product info — pricing, supported platforms, features

What this is not

This MCP server does not access your Doorstopper account or any user data. It's a public discovery layer. To manage real listings, sign up at doorstopper.io.

License

MIT — see LICENSE.

Links

• Doorstopper: doorstopper.io
• Live demo: doorstopper.io/demo
• Issues: github.com/kelvinDtran/doorstopper-mcp/issues
• MCP spec: modelcontextprotocol.io