Deterministic AI parsing
GPT-4o reads complex part numbers (RF650, Pagid RSL29, 300V) and extracts every fluid and component with zero manual entry.
The interactive demo will reopen along with subscriptions. In the meantime, the maintenance guides remain freely available: Guides
Predictive track wear
Custom wear multipliers (x5 to x8) per track session, so you can anticipate brake fluid boiling point and pad replacement.
PDF White Book
When you sell, the full dossier: history, wear, sessions and the amount invested, invoice by invoice. To print and hand over with the car.
Resale ready
One public link beats a folder full of invoices
When you sell, your listing carries a link to a full traceability passport: service history, consumable wear status and GPS-verified track sessions. Buyers read everything without creating an account.
- 🔗 A link you can paste into any listing
- 🔒 Name, email, VIN and amounts never exposed
- 🌍 Shown in the buyer's own language and units
Designed to be linked from listings on car auction and classifieds platforms (Bring a Trailer, Cars & Bids, Collecting Cars…). StemmaPass is not affiliated with any of them.
Traceability passportPorsche 911 GT3992 · 2024 · 48 500 km
Traceability- 14
- Services
- 7
- Track sessions
- 23
- Parts tracked
Compiled from records uploaded by the owner. StemmaPass does not verify their authenticity.
Simple, transparent pricing
Pick the plan that matches your garage and your track days.
Road
Youngtimers & weekend cars
US$5.99 / month
- ✅ Unlimited workshop invoices
- ✅ Mileage and calendar service intervals
- ✅ Multi-vehicle garage
- ✅ Wear alerts by email
Popular
Track
Track tools & circuit days
US$9.99 / month
- ✅ Everything in Road
- 🏁 GPS import from LapTimer & TrackAddict
- 🌡️ Thermal wear and fluid boiling alerts
- 📄 Track-day planner with a 7-day check
Starter
To try out AI extraction
US$0.00
- ✅ 3 free invoices
- ✅ Full AI parsing
- ✅ Track one vehicle
- ✅ Public resale passport
PDF White Book
One payment, per vehicle, for life
US$39.00
- ✅ Every invoice amount and the total invested
- ✅ A document to print, archive and hand over with the car
- ✅ Regenerate it any time: every new service is added, no second payment
Prices exclude any local taxes, which are calculated at checkout.