About This App
Identifies vehicles with the largest wholesale-to-retail spread. For each VIN, predicts both franchise (retail) and independent (wholesale) values to calculate potential arbitrage profit. Helps wholesalers and dealers find the most profitable auction purchases.
Screenshots
MarketCheck API Endpoints Used
This app calls the following MarketCheck API endpoints under the hood:
Parameters
Pass these parameters when calling the find-auction-arbitrage tool or API endpoint:
| Parameter | Type | Required | Description |
|---|---|---|---|
vins | string | Yes | Comma-separated VINs |
zip | string | Yes | Market ZIP |
Derivative API Endpoint
This app is powered by a composite API endpoint that orchestrates multiple MarketCheck API calls:
Test this endpoint with your API key. See full documentation.
How to Use
1. In the Browser (Demo or Live Data)
Click "Launch App" above. Enter your MarketCheck API key in the settings gear for live data, or explore with demo data.
2. As an MCP App (AI Assistants)
Add the MarketCheck MCP server to Claude, VS Code, or any MCP-compatible host:
{
"mcpServers": {
"marketcheck-apps": {
"url": "https://apps.marketcheck.com/mcp?api_key=YOUR_KEY"
}
}
}
Then ask the AI to use the find-auction-arbitrage tool.
3. Embed in Your Portal
<iframe src="https://apps.marketcheck.com/apps/auction-arbitrage-finder/dist/index.html?api_key=YOUR_KEY&embed=true" width="100%" height="700" style="border:none;border-radius:8px;" ></iframe>
4. Get a Free API Key
Sign up at developers.marketcheck.com to get a free API key and start testing.
Source Code
This app is open source and part of the MarketCheck API & MCP Apps monorepo:
The full repository contains 52 apps across 18 segments, plus full-stack chat demo implementations.