Car Inventory API

Access vehicle inventory data aggregated from 150K+ dealers with up to 18M active listings, including pricing intelligence, days-on-market, and supply metrics to support pricing and inventory decisions.

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150K+

Active Dealers

18M

Active Listings Daily

5M+

Unique VINs

50+

Data Fields

Seamless Vehicle Inventory Data Access Across Platforms

Retrieve vehicle inventory data using VIN, location, and attribute-based queries via the Car Inventory API

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Car Inventory API

Use Market Listings API endpoints to query vehicle inventory data via GET or POST with an API key, using VIN, spec_id, or location filters in JSON or XML formats. Returns pricing, mileage, status, seller details, and VIN-level attributes across active and historical inventory. Run a sample query to validate response structure and data coverage.

  • Flexible queries across VIN, spec_id, and location filters
  • Supports JSON and XML response formats
  • Returns pricing, vehicle details, and seller information
  • Covers both active and historical inventory
  • Validate data structure with sample queries
  • Powered by Market Listings API endpoints

Ideal for:

Marketplaces, analytics platforms, dealerships, fintech applications, and automotive SaaS solutions.

API Documentation

Inventory Data, Pricing, and Activity—In One API

What to expect from the Car Inventory API

20+ search parameters

Filter inventory by vehicle attributes, pricing, location, and seller type.

Pricing distribution insights

Access mean, median, minimum, and maximum pricing across comparable listings.

Days-on-market

Understand how long similar vehicles remain listed to evaluate demand and inventory turnover.

Price history

Track how pricing evolves over time for individual vehicle listings.

Active and historical inventory

Analyze both current listings and removed inventory to monitor market movement.

Car Inventory Endpoint

// Car Inventory API
 
const res = await fetch(
  "https://api.vinaudit.com
  /api/market/listings/
  ?key=YOUR_API_KEY"
);
200 OK
"status": "success",
"count": 1,
"data": {...}

Large-Scale Vehicle Inventory Data for Market Intelligence

Leverage multi-source vehicle inventory data from thousands of automotive retailers to support pricing strategy, supply analysis, and inventory tracking.

For Digital Products & Apps

Integrate inventory data to power vehicle search, discovery, and inventory-driven application features.

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For Dealers & Dealer Groups

Monitor competitor inventory and market supply to optimize pricing and improve inventory turnover.

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For Finance Companies

Use inventory and pricing data to evaluate collateral availability, pricing exposure, and lending decisions.

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For Online Marketplaces

Integrate multi-source inventory data to power search, filtering, and comparison features.

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For Automotive Market Trends & Insights

Analyze inventory data to identify supply shifts, pricing trends, and demand patterns across markets.

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For Warranty Companies

Use inventory and pricing data to evaluate vehicle value trends and support warranty risk assessment.

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For CRM Enrichment

Enhance vehicle and customer records with inventory and pricing data to improve segmentation and engagement.

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Use Cases: Car Inventory API

Analyze supply, benchmark pricing, and track inventory activity for millions of vehicles across he U.S. and Canada markets.

VIN Activity Monitoring

Track vehicle appearance, updates, and removal across sources to maintain accurate inventory lifecycle visibility.

FinanceWarrantyDealer Groups

Competitive Price Benchmarking

Compare vehicle pricing across competitors using aggregated market data to improve pricing decisions.

Dealer GroupsSoftware & StartupsDigital Products and Apps

Demand & Supply Market Tracking

Measure supply levels and demand indicators to identify high-demand vehicles and pricing pressure

FinanceOnline MarketplacesDealer Groups

Live Retail Data Integration

Embed VIN-level inventory data to power real-time search and inventory-driven user experiences.

Dealer GroupsSoftware & Startups

Inventory Performance Analytics

Analyze pricing, demand, and turnover signals to improve inventory performance and reduce holding time

Dealer GroupsSoftware & StartupsOnline Marketplaces

Vehicle Search

Find vehicles across inventory using VIN, make, model, and attribute-based search data.

Dealer GroupsOnline MarketplacesFinanceInsuranceSoftware & StartupsWarranty

See How We Help Automotive Businesses

Jiarui Liu

Assistant Professor of Marketing, New York University Stern

"I have benefited from the data provided by VinAudit across several research projects. VinAudit consistently delivers high-quality, detailed, and well-structured data on vehicle specifications, which supports my research on consumer electric vehicle purchase decisions and their environmental impact. "

Steve Greenfield

General Partner, Automotive Ventures

"VinAudit has done an impressive job compiling an extensive repository of automotive build, market, and history data into a uniquely unified platform that quietly powers some of the most innovative companies and products in our industry."

Anoop Tiwari

Principal, A9i

"Over more than two decades in digital automotive, I’ve seen how rare it is to find a data partner that combines broad market visibility with the flexibility needed for real-world implementation. VinAudit stands out for its comprehensive view of the U.S. retail automotive market and its support for production-grade automotive integrations."

Bart Stone

Founder, DealerWebsites.com

"VinAudit has been our primary data supplier since 2015, delivering consistently reliable VIN-level data to power multiple aspects of our dealer websites platform year after year."

Tyler Hall

CEO, Drivably

“VinAudit has been an exceptional data partner, delivering the most comprehensive data on vehicles in the US market and enabling seamless integration with our platform to power in-depth, real-time insights for our clients."

Frequently Asked Questions

Use GET or POST requests with an API key to retrieve data by VIN, spec_id, or location parameters. The Car Inventory API supports flexible queries across vehicle attributes and geographic filters.

Responses include price data, mileage, listing status, seller details, and VIN-level vehicle attributes. The Car Inventory API also returns historical activity such as recorded dates and price changes.

Yes, the API supports filtering by postal code, coordinates, radius, and regional parameters. This enables retrieval of localized inventory datasets for specific markets or dealer areas.

The Car Inventory API returns data in JSON and XML formats for easy integration across applications and analytics systems.

The dataset includes millions of active listings aggregated daily from over 151,000 vehicle retailers, providing broad market coverage across the U.S. and Canada.