License Plate to VIN API

Asking users to enter a 17-character VIN can create unnecessary friction.

A license plate number is shorter, easier to remember or locate, and is more familiar to most drivers.

The One Auto API License Plate to VIN endpoint allows your application to start with two simple inputs:

• License plate number

• US state code

The API then returns the corresponding VIN and basic decoded vehicle information,  helping you identify the correct vehicle before requesting additional data using the VIN (vehicle identification number).

This creates a faster and more user-friendly experience for customers while reducing manual entry errors.

A License Plate to VIN API is often only the first step.

Once a vehicle has been identified, your application may also need specifications, valuations, recall records, market data, imagery or vehicle history information.

One Auto API brings together vehicle data from multiple specialist providers through a single platform. This reduces the need to negotiate separate supplier agreements, build multiple integrations or manage inconsistent data formats.

Start with License Plate to VIN today and add new vehicle data services as your product develops.

Use our online API documentation to review request parameters, response fields, state codes and integration examples.

One Auto API provides:

• REST API access

• Structured JSON responses

• Interactive API documentation

• Sandbox testing

• Usage and audit reporting

• Consistent authentication

• Support from vehicle data specialists

Our free sandbox allows your development team to test the integration before moving into production.

Start without a fixed volume commitment and pay for the successful lookups your application performs.

Flexible pricing supports businesses at every stage:

• Test the endpoint through the free sandbox

• Launch using usage-based PrePay pricing

• Move to a monthly plan as volumes increase

• Access bespoke enterprise pricing for larger requirements

• Achieve rates as low as $0.06 per lookup at qualifying volumes

Visit our pricing page for current subscription and transaction options.

Make it easier for customers and employees to identify US vehicles.

Access nationwide license plate coverage, fast VIN identification, basic vehicle decoding and a growing range of US automotive data services through one straightforward API integration.

Create your One Auto API account and begin testing in minutes.