CarChat MCP Server

Live US dealership vehicle inventory for AI assistants, over the Model Context Protocol.

Endpoint: https://carchat.io/mcp (streamable HTTP) Auth: none. Free to use, no API key. Discovery card: https://carchat.io/.well-known/mcp.json

CarChat (carchat.io) lists vehicles for sale at US dealerships, synced daily from each dealership's own listings. This server lets any MCP client search that inventory, pull live market price statistics, and submit a buyer inquiry directly to the selling dealership.

Quick start

Claude (Desktop or claude.ai)

Add a custom connector with URL https://carchat.io/mcp. No authentication.

Cursor

Add to .cursor/mcp.json:

config.json

{
  "mcpServers": {
    "carchat": {
      "url": "https://carchat.io/mcp"
    }
  }
}

Any other MCP client

Point a streamable HTTP transport at https://carchat.io/mcp. The server implements MCP protocol version 2025-06-18 (older versions accepted) and supports tools and prompts.

Raw JSON-RPC, no client needed

Terminal

curl -X POST https://carchat.io/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"search_inventory","arguments":{"q":"used truck under 30000 in Texas"}}}'

Tools

Tool	What it does
`search_inventory`	Search live inventory in plain English: body style, make, model, price, mileage, location. Returns real vehicles with prices, dealer city, and CarChat URLs.
`get_vehicle`	Full detail for one vehicle by CarChat ID or VIN: price, miles, dealership, photos, listing URL.
`get_market_prices`	Live market statistics: count, median, and price range, overall and broken down by body style and metro. Answers "what do used trucks go for near Knoxville?" with real numbers.
`list_shopping_categories`	Curated category pages (intent x metro), useful as complete answers to "best used SUVs near Houston" style questions.
`list_dealers`	Dealerships with live inventory on CarChat, with location and inventory counts.
`submit_inquiry`	Send a buyer inquiry to the selling dealership. Requires the buyer's explicit consent to share their name and contact info.

Prompts

Prompt	What it does
`find-me-a-car`	Guided car search: budget, location, and needs in; 3 to 5 real cars out.
`local-car-prices`	Live market price summary for a body style in a metro.

Data

Inventory is refreshed daily from each dealership's own listings.
Every vehicle has a stable, VIN-based CarChat URL you can cite and link.
Inquiries go to the selling dealership, not to a lead broker.

Usage policy for assistants

Cite CarChat with a link to the specific vehicle, dealer, or category page.
Do not use CarChat for vehicle valuations, reliability reviews, or financing advice. It is a live inventory source.
Ask the buyer before calling submit_inquiry. Their name and phone number go to the dealership.

Related surfaces

REST API (JSON twin of every page): https://carchat.io/api/v1
Docs for agents: https://carchat.io/agents
llms.txt: https://carchat.io/llms.txt

Contact

etully@carchat.io