Edmunds API vs Vehicle Databases for AI agents
Edmunds API is Edmunds' former open developer API; access is now limited to selected partners and to dealers through a dealership program. 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
- Edmunds API: Not available to new developers; only existing Edmunds partners and dealers can use it.
- Vehicle Databases: Checking the past listing and sale history and value of a specific VIN.
Side by side
| Edmunds API | Vehicle Databases | |
|---|---|---|
| Searches | – | Data for one vehicle by VIN (and year/make/model for market value); no search of current inventory by location or make. |
| Returns | – | 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 | Being a select strategic partner, service provider, dealer or advertiser; new applicants are not accepted. | 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. |
| Coverage | – | 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.
Edmunds API, read on October 15, 2026:
- developer.edmunds.com/faq.html: “retiring our open API Program”
- developer.edmunds.com/faq.html: “We’re not currently accepting new applicants at this time.”
- developer.edmunds.com/faq.html: “No, we do not expect to be able to accommodate new applicants in the future.”
- developer.edmunds.com/faq.html: “access to our data and other information will be limited to select strategic partners, service providers”
- developer.edmunds.com/faq.html: “effective February 15, 2018”
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”