Wrixton MCP Servers

Zillow + Redfin listing search

Search for-sale and recently-sold homes across Zillow and Redfin, with a merged/de-duplicated view. Fully public — no API key required to run, though Zillow is far more reliable with one configured server-side.

Auth

None — open endpoint.

Legacy SSE

/house/sse

Tools

3

claude mcp add --transport http house-search https://mcp.wrixton.xyz/house/mcp

{
  "location": "Seattle, WA",
  "status": "for_sale",
  "min_price": 600000,
  "max_price": 900000,
  "min_beds": 3,
  "limit": 5
}

{
  "location": "98103",
  "status": "for_sale",
  "limit": 3
}

{
  "location": "Seattle, WA",
  "status": "for_sale",
  "min_beds": 4,
  "limit": 3
}

Dealer inventory + VIN/reference data

Search new/used/certified-pre-owned dealer inventory nationwide via Auto.dev, plus keyless VIN decoding and make/model reference data from the official NHTSA vPIC API.

Auth

None — open endpoint.

Legacy SSE

/cars/sse

Tools

4

claude mcp add --transport http car-search https://mcp.wrixton.xyz/cars/mcp

{
  "make": "Toyota",
  "model": "RAV4",
  "condition": "certified",
  "year_min": 2021,
  "price_max": 35000,
  "zip": "98103",
  "radius_miles": 50,
  "limit": 3
}

{
  "vin": "2T3P1RFV0NC123456"
}

{}

{
  "make": "Honda",
  "year": 2023
}

Authenticated, multi-tenant proxy in front of all four backends

A hand-rolled reverse proxy (MCP SDK's low-level Server, not mcp-handler) that fronts house, cars, and two other personal apps' remote MCP servers behind one bearer-token-authenticated endpoint. It exists so auth and per-call usage logging live in one place instead of each backend doing its own thing.

claude mcp add --transport http gateway https://mcp.wrixton.xyz/gateway/mcp

Backends

Connecting via OAuth

Unlike house/cars, the gateway is protected — but it still works with Claude's one-click connector UI. Under the hood it's a bearer-token check wrapped in an OAuth 2.1 + PKCE flow that just asks the caller to paste in an admin-issued API key:

1. DiscoveryClient GETs /.well-known/oauth-protected-resource, then /.well-known/oauth-authorization-server to find the authorize/token/register endpoints.
2. Dynamic registrationPOST /gateway/oauth/register — no manual client setup.
3. AuthorizeBrowser opens /gateway/oauth/authorize with PKCE params; the login page just asks for the admin-issued API key.
4. Token exchangePOST /gateway/oauth/token with the authorization code exchanges it for a bearer token — that same API key — which the client then sends as Authorization: Bearer <token> on every request to /gateway/mcp.

Sample calls

Tool names pass through unchanged — search_cars on the gateway is the same tool as search_cars on /cars/mcp directly.

{
  "tools": [
    {
      "name": "search_homes",
      "description": "Search Zillow and Redfin, merge and de-duplicate by address, sort by price…"
    },
    {
      "name": "search_redfin",
      "description": "Search Redfin for homes…"
    },
    {
      "name": "search_zillow",
      "description": "Search Zillow for homes…"
    },
    {
      "name": "search_cars",
      "description": "Search dealer inventory nationwide for new, used, or certified pre-owned cars…"
    },
    {
      "name": "decode_vin",
      "description": "Decode a 17-character VIN using the free official NHTSA vPIC API…"
    },
    {
      "name": "list_makes",
      "description": "List all passenger-car makes known to NHTSA…"
    },
    {
      "name": "list_models",
      "description": "List all models for a given make…"
    }
  ]
}

{
  "name": "search_cars",
  "arguments": {
    "make": "Honda",
    "model": "CR-V",
    "limit": 5
  }
}

Built with mcp-handler for house/cars — Streamable HTTP is the primary transport, with legacy SSE at /house/sse and /cars/sse. The gateway is hand-rolled on the MCP SDK’s low-level Server since mcp-handler doesn’t support proxying tool schemas it didn’t itself define.

Claude Desktop / stdio-only clients

{
  "mcpServers": {
    "house-search": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://mcp.wrixton.xyz/house/mcp"
      ]
    },
    "car-search": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://mcp.wrixton.xyz/cars/mcp"
      ]
    }
  }
}