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Setup:Claude Desktop

Download Claude Desktop

Download the latest version from claude.ai/download. Make sure you have Node.js 18+ installed on your machine.

Open the config file

Locate and open claude_desktop_config.json:

~/Library/Application Support/Claude/claude_desktop_config.json

If the file doesn't exist yet, create it at that path (including any missing directories).

Add the RateSpot server configuration

Merge — don't replace

Your claude_desktop_config.json most likely already contains a preferences block (added automatically by Claude Desktop). Add mcpServers as a new top-level sibling key — do not delete what is already there.

Before (typical existing file)

{
  "preferences": {
    "coworkWebSearchEnabled": true,
    "remoteToolsDeviceName": "my-macbook-air"
  },
  "coworkUserFilesPath": "/Users/you/Claude"
}

After (mcpServers added as a sibling)

{
  "preferences": {
    "coworkWebSearchEnabled": true,
    "remoteToolsDeviceName": "my-macbook-air"
  },
  "coworkUserFilesPath": "/Users/you/Claude",
  "mcpServers": {          ⬅ ADD THIS BLOCK
    "rs-marketplace": {
      "command": "npx",
      "args": [ ... ]
    }
  }
}

If the file is empty or doesn't exist yet, just paste the snippet below as-is — it's already a complete, valid file. Don't forget the comma after the previous closing } when merging.

json

{
  "mcpServers": {
    "rs-marketplace": {
      "command": "npx",
      "args": [
        "-y",
        "supergateway",
        "--streamableHttp",
        "http://45.55.165.251:8080/mcp"
      ]
    }
  }
}

Sign in to mint a personal API key — the snippet will then include an Authorization: Bearer … header for authenticated access.

!Requires Node.js 18+ to be installed on your machine.
!The first run will download supergateway automatically via npx.
!Restart Claude Desktop fully after saving the config.

Restart Claude Desktop and start querying

Fully restart the application to pick up the new config. Once connected, you'll see rs-marketplace listed as an available MCP server. You can now ask natural-language questions about real estate directly in your AI client.

You're connected when you see:

rs-marketplace — 53+ tools available

Daily usage

Loading quota…

Available Tools

(53 of 53)

Loading marketplace catalogue…

Example questions to try with Claude

“Show me 3-bed homes for sale in Austin, TX under $550k”

“What are current 30-year fixed mortgage rates?”

“Analyze the cash flow for 123 Main St if I put 20% down”

“Compare cap rates for Phoenix vs. Tampa rental markets”

“What's the median price per sqft in zip code 78701?”

“Find the top 5 Airbnb markets in Florida by revenue”

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MCP Documentation

Learn more about the Model Context Protocol specification and how it enables tool use across AI clients.

modelcontextprotocol.io

Server Information

Endpoint: http://45.55.165.251:8080/mcp
Transport: Streamable HTTP via supergateway
Tools available: 53+ tools across 5 categories