Security Upgrade Notice

All VINquery and DecisioQ APIs now support secure JWT authentication through identity.vinquery.com.

Legacy AccessCode authentication will remain available until October 31, 2026.

Beginning November 1, 2026, all VINquery and DecisioQ API requests must authenticate using a valid JWT access token issued by identity.vinquery.com. API requests using the legacy AccessCode authentication method will no longer be accepted.

Please update your applications before November 1, 2026 to avoid any interruption to your integrations or services.

Automotive API platform

VINquery.com APIs for vehicle data, VIN capture, and business decisions

VINquery.com provides cloud-hosted APIs for automotive applications that need VIN decoding, VIN correction, image-based VIN capture, barcode recognition, and deterministic decision support.

Each service is designed for practical integration through a trusted server-side application, with JWT authentication, clear documentation, and production-ready endpoints.

Integration Flow

A simple server-side pattern for secure API consumption.

Step 1

Create an API consumer

Register the service audience your application is allowed to call.

Step 2

Request a JWT

Your backend authenticates with the identity service using protected credentials.

Step 3

Call the API

Send the bearer token from your server-side proxy or integration service.

Step 4

Return useful results

Show only the response data your users need in your application workflow.

Core Automotive APIs

Focused services for common vehicle-data and VIN capture workflows.

VINdecode API

Decode a VIN into vehicle specifications, including year, make, model, powertrain, equipment, and other structured data.

VINfix API

Correct likely typographical errors in problem VINs and help users recover a valid vehicle identification number.

VINocr API

Capture VINs from uploaded images, documents, invoices, labels, and other visual sources using OCR workflows.

VINbarcode API

Read VINs encoded in supported barcode images and return usable vehicle identifiers for downstream systems.

DecisioQ

DecisioQ Decision Support API

Use catalog-driven business rules, criteria, constraints, and ranking to evaluate options and produce explainable recommendations for automotive workflows.

Explore DecisioQ