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Copart · IAAI · REST · JSON

Copart and IAAI auctions. One clean API.

Search active lots, sync the full feed, track archived listings and look up any vehicle by VIN or lot number. Every response uses the same vehicle and lot shape, with seller reserve, photos, prices and auction dates where the source has them.

Quickstart Test a VIN or lot
How it worksILLUSTRATIONCopart · IAAI
Your appGET /search-vin/{vin}
2023 BMW M82 lots merged:copart.comiaai.com
  • Seller reserve
  • Final bid
  • Photos
  • Price history
Base URL
Auth
x-api-key header
Format
JSON · UTF-8
Sources
Copart 3 · IAAI 1

Two feeds keep a catalog current

GET /carsCurrent listings Every active Copart and IAAI lot with photos, bids and auction dates. Import it once, then poll it with minutes=60.GET /archived-lotsArchive Lots that were sold or removed, with the final bid where available. Use it to retire lots in your catalog.

Carfax, AutoCheck and Pay per VIN

Two extra services, billed per request from a USD balance and separate from the auction feeds. Checking a VIN is always free.

Carfax · AutoCheckCarfax & AutoCheck reports Check for free how many records each provider has for a VIN, then request the full report only when it is worth it. You get a link to the HTML report, an optional PDF, and your balance after the charge.
  1. Free/reports/check-records/{vin}
Copart · IAAIPay per VIN Check for free whether we have auction data for a VIN. If we do, fetch the full vehicle record and pay for that single request from your balance.
  1. Free/local-exists/{vin}

Start here

01Quickstart Three requests: import, hourly updates, sold lots.02Sync the full inventory Page /cars, read /archived-lots and stay current.03Search with filters 40+ filters: make, year, price, damage, location.04Connect your key Apply your key once and every example fills in.

API at a glance

Full reference →

Vehicles

GET/carsSearch active auction vehicles

Lookup

GET/search-vin/{vin}Get a vehicle by VINGET/search-lot/{lot}/{domain}Get a vehicle by lot number

Catalog

GET/manufacturers/{type}List vehicle manufacturersGET/models/{manufacturer_id}/{type}List models by manufacturerGET/generations/{model_id}/{type}List generations by model

Archive

GET/archived-lotsList archived auction listings

Statistics

GET/statisticsGet vehicle statistics

Dictionaries

GET/usa/damagesList damage typesGET/usa/statesList US states and Canadian provincesGET/usa/cities/{state_id}List cities by state or provinceGET/usa/titlesList document titlesGET/usa/branchesList Copart and IAAI branches

Carfax & AutoCheck

GET/reports/check-records/{vin}Check report recordsGET/reports/{type}/{vin}Get a Carfax or AutoCheck reportBilledGET/reports/balanceGet report balanceGET/reports/my-historyList generated reports

Pay per VIN

GET/local-exists/{vin}Check whether a VIN existsGET/local-report/{vin}Get the vehicle recordBilled
Building with an AI coding agent?Copy one prompt and your agent gets the whole contract: auth, pagination, filters, errors and every enum ID. No guessing from examples.

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