Spree Commerce: open-source B2B and marketplace ecommerce
Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
Runs in the cloud
CarChat Inventory
Overview
Description from the maker (original English)
Search live US dealership inventory, get market prices, and send buyer inquiries. Free, no API key.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiVery new★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Online shops & payments
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://carchat.io/mcpRun this in your terminal
claude mcp add --transport http inventory https://carchat.io/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"inventory": {
"url": "https://carchat.io/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"inventory": {
"type": "http",
"url": "https://carchat.io/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://carchat.io/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
We have not read this server’s tool list yet; we check endpoints in rotation.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 9, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified against the domain carchat.io (the registry checks domain ownership)
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- … Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Online shops & paymentsi
- More stars than 0% of the other 2574 servers in this category
- Published to the registry more recently than 30% of the other 2574 servers in this category
- Basic checks equal to or better than 100% of the other 2574 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is CarChat Inventory safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 2 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Spree Commerce: open-source B2B and marketplace ecommerce, Stripe MCP, MCP Cn Commerce
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Stripe MCP
Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.
Runs in the cloud✓ stripe.com
MCP Cn Commerce
8 read-only MCP platform entries; support is operation-specific; merchant live acceptance pending
Runs on your computer
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
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:
{"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
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