Use case
Classic car valuation API
Old Cars Data helps valuation tools and appraisal workflows find comparable collector-car sales, live auction signals, bid history, and market statistics through REST and MCP.
Last updated May 17, 2026
What a valuation workflow can query
- Recent completed sales for a normalized make and model.
- Year ranges and price ranges for comparable-sale narrowing.
- Auction status, including sold, bid to, reserve not met, canceled, and withdrawn outcomes.
- Live auction listings for supported sources when a current market read is needed.
- Bid trails that show demand intensity, price movement, and late-auction behavior.
- Price statistics including median, average, ranges, sell-through, and trend signals where available.
Recommended valuation flow
| Step | Endpoint or tool | Purpose |
|---|---|---|
| Normalize the vehicle | GET /makes, GET /models, list_makes, list_models | Use canonical make and model names before searching |
| Find comparable sales | GET /auctions or search_auctions | Pull recent completed auction records and vehicle details |
| Check current market | GET /auctions/live or search_live_auctions | Compare current live activity with completed sales |
| Inspect demand | GET /auction-bids or get_auction_bids | Review bid count and bid progression when available |
| Summarize pricing | GET /stats or get_price_stats | Use statistics as context, not as a blind appraisal |
Important valuation limits
Collector-car values are sensitive to condition, provenance, originality, configuration, documentation, location, title history, and photos. Old Cars Data provides the market data layer; appraisal decisions should combine the data with human inspection and domain judgment.
Frequently asked questions
Can an API estimate classic car values automatically?
An API can support valuation by returning comparable auction results, live listings, and market statistics. Final valuations should still account for condition, originality, provenance, location, mileage, title status, and human review.
What data matters most for collector-car valuation?
Completed sale prices, auction outcome, year, make, model, mileage, condition details, modifications, bid count, source, and recent market volume are the most useful signals.
Does Old Cars Data include active listings?
Yes. Old Cars Data includes live auction access for supported sources, including active Bring a Trailer listings with current price, bid count, and ending-window filters.