AI-powered analysis for every AutoTrader listing. Service history, MOT, HPI flags and price checks — instantly.
Add AT Companion to Chrome for free. No account needed to get started.
Visit any AutoTrader UK listing. The companion panel appears automatically on the right side of your screen.
Every listing is scored. Green means go, amber means check, red means walk away.
Instantly see if a car has full, partial, or no service history — highlighted across every listing on the page.
See exactly when the MOT expires, and flag any recent advisories or failures sellers don't shout about.
Listings with potential finance outstanding, write-off history, or plate changes are highlighted immediately.
Know whether a car is priced fairly, above, or below similar listings — without opening 20 tabs to compare.
Remove promoted and featured listings from search results with one toggle. See only genuine matches.
The analysis panel stays open as you browse. No clicking in and out — just scroll the listings and decide.
Start free. Upgrade when you need unlimited power.
Secure payment via Stripe. Cancel any time.
Yes — it works on all search results pages and individual listing pages on AutoTrader UK (autotrader.co.uk).
AT Companion analyses the information AutoTrader already surfaces on each listing and flags potential issues. It doesn't perform a separate paid HPI check — we highlight when you should consider getting one.
No. AT Companion analysis runs via our own secure API. We do not share any data with AutoTrader or any third party.
AT Companion is a Chrome extension and works on all Chromium-based browsers including Chrome, Edge, and Brave.