Appraiser Workbench

Complete vehicle valuation studio

Appraiser
Launch App → Get Free API Key API Docs ↗

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

Appraiser Workbench screenshot
Appraiser Workbench screenshot
Appraiser Workbench screenshot

MarketCheck API Endpoints Used

This app calls the following MarketCheck API endpoints under the hood:

GET GET /v2/decode/car/neovin/{vin}/specs
VIN Decode
View API documentation ↗
GET GET /v2/predict/car/us/marketcheck_price/comparables
Price Prediction
View API documentation ↗
GET GET /v2/search/car/active
Search Active Listings
View API documentation ↗
GET GET /v2/search/car/recents
Search Recent/Sold
View API documentation ↗
GET GET /v2/history/car/{vin}
Car History
View API documentation ↗

Parameters

Pass these parameters when calling the appraiser-workbench tool or API endpoint:

ParameterTypeRequiredDescription
vinstringYes17-character VIN
milesnumberNoCurrent mileage
zipstringNoZIP code

Derivative API Endpoint

This app is powered by a composite API endpoint that orchestrates multiple MarketCheck API calls:

POST https://apps.marketcheck.com/api/proxy/appraiser-workbench

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:

View source on GitHub ↗

The full repository contains 52 apps across 18 segments, plus full-stack chat demo implementations.