About This App
The most comprehensive valuation tool. Provides retail and wholesale price predictions, both active and sold comparables (25 each), full listing history, and VIN-decoded specs. Designed for professional appraisers who need defensible, data-backed valuations for trade-ins, insurance claims, estate valuations, and fleet revaluation.
Screenshots



MarketCheck API Endpoints Used
This app calls the following MarketCheck API endpoints under the hood:
Parameters
Pass these parameters when calling the appraiser-workbench tool or API endpoint:
| Parameter | Type | Required | Description |
|---|---|---|---|
vin | string | Yes | 17-character VIN |
miles | number | No | Current mileage |
zip | string | No | ZIP code |
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 appraiser-workbench tool.
3. Embed in Your Portal
<iframe src="https://apps.marketcheck.com/apps/appraiser-workbench/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.