Old Cars Data / API ReferenceCompleted collector-car auction records
Bring a TrailerCars & BidsHagertyPCAR MarketAll Collector CarsGooding & CoRM Sotheby's

Normalized auction data layer

Collector car auction data, normalized for market intelligence.

Actual hammer prices from 275,000+ completed sales across seven major platforms, delivered through one REST API and MCP server.

No credit card required · first useful query in 60 seconds · MCP tools included

Auction results extract

normalized daily · 7 sources
YearMakeModelSourceSoldBidsDate
1973Porsche911S CoupeBaT$189,000422025-11-14
1994ToyotaSupra TurboCars & Bids$121,500382025-11-13
1967FordMustang GTHagerty$86,240312025-11-13
1989Mercedes-Benz560SLPCAR$44,750192025-11-12
1970ToyotaLand Cruiser FJ40BaT$45,000232025-11-12
2001BMWM CoupeCars & Bids$62,500272025-11-11
1965ShelbyCobra ReplicaGooding$98,000162025-11-10
1987Ferrari328 GTSRM Sotheby's$142,800212025-11-09
1991AcuraNSXBaT$101,000352025-11-09
1972Datsun240ZHagerty$51,700292025-11-08
1986Porsche911 CarreraPCAR$88,400332025-11-08
1969ChevroletCamaro Z/28All Collector$112,300252025-11-07
1997Land RoverDefender 90BaT$74,250182025-11-07
2004HondaS2000Cars & Bids$38,600442025-11-06

275k+

completed sales

7

auction sources

REST + MCP

access layer

Actual Hammer Prices

Completed auction sales, not valuation guesses

Normalized Schema

Consistent make, model, color, spec, and source fields

Daily Refresh

Yesterday's auction activity available today

Commercial Access

REST API and MCP server included on every plan

Data normalization

Stop guessing. Start querying the archive.

Without comps, you're overpaying, underpricing, or missing deals entirely. Every major auction platform in one place, so you never have to manually check seven sites again.

Before

Seven browser tabs. Manual copy-paste.

BaTCars & BidsHagertyPCARAll CollectorGoodingRM Sotheby's

Hours of manual research per vehicle. Inconsistent formatting. Missed sales.

After

One endpoint. Normalized JSON.

GET /auctions?make=Porsche&model=911

{"title": "1973 Porsche 911S", "price": 89000, "source": "bringatrailer" }

One API call returns comparable sales across seven platforms with consistent fields and source metadata.

01

Seven Platforms, One Schema

BaT, Cars & Bids, Hagerty, PCAR Market, All Collector Cars, Gooding & Co & RM Sotheby's - normalized into a single, consistent dataset. No more cross-referencing tabs.

02

Cleaned & Normalized

Make names, model names, colors, and specs standardized across sources. Query once, get everything.

03

Updated Every Day

New auction results flow in daily. Yesterday's sale is in your dataset today - not next quarter.

Use cases

Build, price, analyze, appraise.

One transaction data layer for teams turning collector-car auction history into products, pricing workflows, and market intelligence.

01

Build

Ship collector-car tools on top of normalized auction records. REST endpoints and MCP tools give your product real sales data without building the ingestion layer yourself.

02

Price

Price inventory against actual completed sales. Dealers can pull comparable auction results into listing workflows, offer sheets, and internal pricing tools.

03

Analyze

Track market movement across makes, models, years, and platforms. Build dashboards around volume, sell-through, price percentiles, and appreciation trends.

04

Appraise

Support insurance, lending, diminished-value, and appraisal work with defensible comparable sales from seven collector-car auction platforms.

05

Automate

Generate pricing sheets, listing descriptions, research briefs, and bid-limit recommendations from one query instead of seven browser tabs.

06

Research

Give collectors and analysts a deeper archive for model research, purchase validation, and long-term market context.

API access

Simple API pricing.

Start free, get a key immediately, and scale when the data is powering production work.

Starter

FREE

10 metered requests every month

REST API key
MCP server access
Public makes & models

1k

Most Popular
$49/mo

1,000 metered requests per month

Full historical archive
All auction platforms
API + MCP commercial use

10k

$199/mo

10,000 metered requests per month

Full historical archive
All auction platforms
Higher-volume integrations

Calls to makes and models are unmetered.

Auction search, stats, and MCP data tools count toward plan usage.

All plans are month-to-month. No long-term contract.

Production access

Put real auction comps behind your product.

Get an API key, make the first query, and start replacing valuation guesses with completed collector-car sales.

Get API KeyView Docs

Free tier includes REST API key and MCP server access.

Reference notes

Frequently asked questions.