Best Vehicle APIs in 2026

The top 15 of 15 free Vehicle APIs, ranked by how easy they are to start with (API key, HTTPS, CORS), how reliable they are in our daily health checks, and what developers rate them. Bike Reliability API takes the top spot.

Last tested Oct 24, 2026 · Rankings update daily

1
Bike Reliability API
Online · 524 ms
UK motorcycle reliability ranked by first-time MOT pass rates.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
2
ProblemsByVin API
Online · 523 ms
Owner complaints, recalls and failure-mileage statistics by vehicle make, model and year.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
3
TransparentCars API
Online · 644 ms
Fair-price valuation and yearly road tax (IUC) for used cars in Portugal.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
4
Brazilian Vehicles and Prices API
Online · 312 ms
Vehicles information from Fundação Instituto de Pesquisas Econômicas - Fipe.
- No API key needed
- Fast: 312 ms response
- HTTPS
No authHTTPSNo CORS
5
CarVector API
Online · 1152 ms
Vehicle specs, images, recalls, and DTC codes across 1925-2029.
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS
6
NHTSA API
Online · 704 ms
NHTSA Product Information Catalog and Vehicle Listing.
- No API key needed
- HTTPS
No authHTTPSCORS ?
7
RevCarData API
Online · 535 ms
86,000+ global vehicle specifications and EV metrics.
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS
8
WhichTrim API
Online · 585 ms
US vehicle recalls, complaints, fuel economy, crash ratings, service bulletins and VIN decoding.
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS
9
Auto Body Shop Directory API
Online · 425 ms
Find auto body shops by ZIP code, city, location, or profile.
- No API key needed
- HTTPS
No authHTTPSNo CORS
10
Kelley Blue Book API
Online · 168 ms
Vehicle info, pricing, configuration, plus much more.
- Fast: 168 ms response
- HTTPS
apiKeyHTTPSNo CORS
11
NHTSA Vehicle Recalls API
Online · 334 ms
NHTSA safety recalls by model year, make and model with component, consequence and remedy.
- Fast: 334 ms response
- HTTPS
apiKeyHTTPSCORS ?
12
Wheelwise API
Online · 2096 ms
UK used-car listings with fair-price grade, 36-month resale forecast and monthly cost per advert.
- No API key needed
- Returns JSON at its URL
- HTTPS
No authHTTPSNo CORS
13
Smartcar API
Online · 1702 ms
Lock and unlock vehicles and get data like odometer reading and location. Works on most new cars.
- Callable from the browser (CORS)
- HTTPS
OAuthHTTPSCORS
14
Helipaddy sites API
Online · 4854 ms
Helicopter and passenger drone landing site directory, Helipaddy data and much more.
- HTTPS
apiKeyHTTPSCORS ?
15
Mercedes-Benz API
Online · 1474 ms
Telematics data, remotely access vehicle functions, car configurator, locate service dealers.
- HTTPS
apiKeyHTTPSNo CORS

Vehicle APIs compared

Top Vehicle APIs compared
API	API key	HTTPS	CORS	Uptime	Response	Rating
Bike Reliability	No	Yes	Yes	Up	524 ms	Not rated
ProblemsByVin	No	Yes	Yes	Up	523 ms	Not rated
TransparentCars	No	Yes	Yes	Up	644 ms	Not rated
Brazilian Vehicles and Prices	No	Yes	No	Up	312 ms	Not rated
CarVector	Required	Yes	Yes	Up	1152 ms	Not rated
NHTSA	No	Yes	Unknown	Up	704 ms	Not rated
RevCarData	Required	Yes	Yes	Up	535 ms	Not rated
WhichTrim	Required	Yes	Yes	Up	585 ms	Not rated
Auto Body Shop Directory	No	Yes	No	Up	425 ms	Not rated
Kelley Blue Book	Required	Yes	No	Up	168 ms	Not rated

More Vehicle APIs

Best Vehicle API FAQ

What is the best free Vehicle API in 2026?

Based on access, reliability and developer ratings, the top free Vehicle APIs right now are Bike Reliability API, ProblemsByVin API and TransparentCars API. Bike Reliability API ranks first. Rankings update daily from health checks of all 15 Vehicle APIs in the directory.

What is the best Vehicle API without an API key?

Bike Reliability API, ProblemsByVin API and TransparentCars API need no API key, so you can call them without signing up. 7 of the 15 ranked Vehicle APIs are keyless.

Which Vehicle API works from the browser?

Bike Reliability API, ProblemsByVin API and TransparentCars API support CORS over HTTPS, so front-end JavaScript can call them directly without a proxy.

How are these APIs ranked?

Each API gets a score from: no API key (+), HTTPS (+), CORS support (+), 30-day uptime and response time from our daily health checks, and ratings from developers on this site. APIs that failed three checks in a row are left out until they recover.