Kelley Blue Book vs Vehicle Databases for AI agents
Kelley Blue Book is a licensed REST service for Kelley Blue Book vehicle values and VIN decoding; it does not list cars for sale. Vehicle Databases is a set of 25+ vehicle data APIs (VIN decode, market value, history, sales and auction history, recalls); its Used Car API looks up past listings by VIN rather than searching cars for sale.
The short answer
- Kelley Blue Book: Businesses that need licensed Kelley Blue Book values inside their own systems, not listing search.
- Vehicle Databases: Checking the past listing and sale history and value of a specific VIN.
Side by side
| Kelley Blue Book | Vehicle Databases | |
|---|---|---|
| Searches | Vehicle values by VIN or configuration (year, make, model, trim, options, mileage) and ZIP code. | Data for one vehicle by VIN (and year/make/model for market value); no search of current inventory by location or make. |
| Returns | New and used values such as fair purchase price, private party, trade-in, auction and lending values, plus ratings and reviews. | For the Used Car API: previous listings, asking prices, mileage, listing dates, seller details and photos where available, plus market values. |
| Before the first call | A signed data license with Cox Automotive (Master Data License plus product terms), arranged through a contact form. | A free sign-up, which gives an API key and starter credits. |
| Free | – | 15 free credits and an API key on sign-up. |
| Acting on a result | – | Sales history records include seller type and seller details (such as dealer name), but these are past listings, not live offers. |
| Limits on keeping or showing results | Industry internal-use terms allow internal use only: no sharing with third parties, no posting on public websites, no modifying the data, and a KBB copyright notice must accompany it. | Not stated on its pages |
| Coverage | United States. | United States. |
| MCP server | – | No official server listed |
Where Openpath fits
Openpath has no car listings yet. Cars are on its roadmap, from sellers and dealers who list them themselves. Get listed.
Questions people ask
What do I need before I can use Vehicle Databases?
A free sign-up, which gives an API key and starter credits.
Is Vehicle Databases free?
15 free credits and an API key on sign-up.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
Kelley Blue Book, read on October 15, 2026:
- b2b.kbb.com/industry-solutions/info-driver-web-service-idws: “Provide your clients access to the industry relevant valuations they require with InfoDriver℠ Web Service (IDWS).”
- b2b.kbb.com/industry-solutions/info-driver-web-service-idws: “Integrate Kelley Blue Book Values into your system or application”
- coxautoinc.com/terms/wp-content/uploads/sites/3/Kelley-Blue-Book-InfoDriver%E2%80%93Industry-Internal-Use-Additional-Terms.pdf: “Licensee may use InfoDriver and the Licensed Data only for internal use”
- coxautoinc.com/terms/wp-content/uploads/sites/3/Kelley-Blue-Book-InfoDriver%E2%80%93Industry-Internal-Use-Additional-Terms.pdf: “post or otherwise make accessible any Licensed Data on any website”
- coxautoinc.com/terms/wp-content/uploads/sites/3/Kelley-Blue-Book-InfoDriver%E2%80%93Industry-Internal-Use-Additional-Terms.pdf: “for a specific vehicle identified by a VIN or configuration (i.e.: year, make, model, trim, optional equipment, and mileage)”
Vehicle Databases, read on October 15, 2026:
- vehicledatabases.com: “You will immediately receive 15 free credits and your API key to access information on different vehicles”
- vehicledatabases.com: “trucks, trailers, and more vehicles sold in the United States”
- vehicledatabases.com/api/used-car: “including previous listings, asking prices, mileage, listing dates, seller details, and photos where available”
- vehicledatabases.com/api/used-car: “Submit a 17-character VIN to either API”