Introduction

MarketCheck API provides access to comprehensive automotive data across North America and UK. Access real-time inventory listings, VIN decode, market analytics, and OEM data for cars, RVs, motorcycles, and heavy equipment.

The platform delivers powerful market intelligence through advanced analytics endpoints covering market days supply (MDS), vehicle popularity statistics, price prediction engines, and other actionable insights for automotive professionals and businesses.

The popular use cases MarketCheck's APIs power are car search, vehicle valuations, automotive market trends and insights, inventory syndication, dealer performance benchmarking.

Base URL and Environment

All API requests are made over secured HTTPS endpoints.

Request and Response Conventions

All MarketCheck API endpoints follow RESTful conventions and accept/return data in JSON format.

• HTTP Methods: Primarily GET for data access, POST for some data submissions for preference or bulk operations
• Request Format: Use query parameters for GET and JSON body for POST where applicable
• Response Format: All responses are JSON-encoded with appropriate HTTP status codes

Getting Access

To start using the MarketCheck API, you'll need an API key. Sign up at MarketCheck Universe to create an account and subscribe to an API package.

See the Authentication guide for details on API keys, environments, and usage limits.

Quickstart

Here's a simple example using API key authentication to search car listings:

import axios from 'axios';

const options = {
  method: 'GET',
  url: 'https://api.marketcheck.com/v2/search/car/active',
  params: {api_key: 'YOUR_API_KEY', car_type: 'used', make: 'Toyota', model: 'Camry'},
  headers: {Accept: 'application/json'}
};

try {
  const { data } = await axios.request(options);
  console.log(data);
} catch (error) {
  console.error(error);
}

Key Features and Datasets

MarketCheck provides access to structured data across multiple verticals:

• Cars (primary focus area)
• RVs, Motorcycles, Heavy Equipment, Boats (limited dataset availability)

The platform exposes RESTful APIs for:

• Inventory Listings: Dealer, private party, and auction sources
• VIN Lookups: Decoding, vehicle history, and detailed specs
• OEM Data: Recalls and incentives (US-only)
• Market Insights: MDS, price stats, popular vehicles, inferred sales, price predictions, and more

Market Coverage

Use Cases

Common applications built with MarketCheck APIs:

Marketplaces & Search

• Vehicle search engines and inventory aggregation platforms
• Car comparison tools and mobile shopping applications
• Dealer inventory syndication and marketplace integrations

Financial Services

• Auto lending with VIN verification and vehicle valuation
• Insurance applications using vehicle specs and history data
• Risk assessment and loan-to-value calculations

Analytics & Intelligence

• Market research dashboards and competitive analysis tools
• Price prediction engines and inventory optimization systems
• Sales forecasting using vehicle popularity and demand metrics

VIN & History Services

• Vehicle history reports and VIN decoding applications
• Recall management and vehicle verification systems
• Auction history tracking for wholesale pricing analysis

Dealership Tools

• CRM systems with vehicle matching and lead generation
• Pricing optimization and trade-in valuation tools
• Inventory management with automated syndication

Available API Endpoints

Cars APIs

Recreational Vehicles (US)

Heavy Equipment (US)

Motorcycles (US)

Next Steps

• Authentication – Learn how to authorize API requests
• Release Policy – Understand our API versioning and deprecation policy
• API Reference – Explore endpoints in depth

MarketCheck APIs are trusted by marketplaces, fintechs, and automotive businesses to access clean, normalized, and timely data for millions of vehicles. Whether you're building a VIN decoder, pricing engine, or car search platform — we’ve got you covered.