Tire Size API & Vehicle Fitment Data for Developers

REST API by Virtual Dimension — Search by Vehicle or Tire Size

Tire Data API Overview — Specs, Fitment & Compatibility

The Tire Size API provides accurate tire specifications, vehicle fitment data, and wheel compatibility details through a simple REST interface. Query by year, make, model, and trim to retrieve tire dimensions, load index, speed ratings, and OE tire sizes for any vehicle. Designed for automotive e-commerce platforms, tire store websites, fleet management systems, and mobile apps, this API delivers real-time JSON responses with comprehensive tire and wheel fitment information. Start with our free plan — no credit card required — and scale as your platform grows.

Get Started with the Tire Size API in Minutes

Flexible Plans for Tire Stores, Developers & Automotive Platforms

Tire Size API Pricing — Free Plan to Enterprise

All prices are listed in Canadian dollars.

Free

$ 0 / month

Test the tire size API with 300 requests per day. Ideal for prototyping and development — no credit card needed.

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300 req / day

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100 req / hr

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Development only

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Community support

FREE TRIAL

No credit card required

Starter

$ 40/ month

For tire stores and apps moving to production. 5,000 daily requests with priority support included.

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All included in Free

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5,000 req / day

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Priority Support

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Low traffic

GET STARTED

Business

$ 150/ month

For high-traffic tire e-commerce platforms. 80,000 daily requests, tire search analytics, and dedicated support.

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All included in Pro

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80,000 req / day

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Tire search analytics

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Dedicated support

GET STARTED

Pro

$ 70/ month

For growing automotive platforms and fleet systems. 50,000 daily requests with enterprise-grade support.

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All included in Starter

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50,000 req / day

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Enterprise Support

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Custom integrations

GET STARTED

Growth

$ 420/ year

Scale your tire fitment integration with higher request limits and dedicated support.

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All included in Free

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5000 req / month

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Basic Support

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Low traffic

GET STARTED

Premium

$ 1500/ year

Scale your tire fitment integration with higher request limits and dedicated support.

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All included in Enterprise

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200,000 req / month

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Premium Support

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Custom Widget

GET STARTED

Enterprise

$ 700/ year

Scale your tire data integration with enterprise-level request limits and custom support.

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All included in Growth

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50,000 req / month

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Enterprise Support

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High Traffic

GET STARTED

Why Choose Our Tire Size & Wheel Fitment API?

  • Fast & Scalable Tire Data: Built for high-volume production environments, our API delivers sub-second JSON responses so your tire store or automotive app stays responsive under heavy traffic.
  • Complete Vehicle Fitment Coverage: Access tire specifications for thousands of makes, models, years, and trims — including load index, speed rating, and OE tire sizes.
  • Easy REST API Integration: A developer-friendly REST interface with clear JSON responses, API key authentication, and interactive documentation to get your first query running in minutes.
  • Search by Vehicle or Tire Size: Query by year/make/model/trim or by tire width, aspect ratio, and diameter — flexible endpoints for any use case.
  • Real-Time, Up-to-Date Data: Our tire fitment database is continuously updated to include the latest vehicle models and tire specifications.

Tire Size API Endpoints — Vehicle Lookup, Size Search & Specs

Our REST API provides multiple endpoints for querying tire data, vehicle fitment, and tire specifications by vehicle or tire dimensions.
  • Search by Tire Size: Provide the width, aspect ratio, and diameter to retrieve detailed tire specifications and compatible vehicle models.
  • Search by Vehicle Model: Input a vehicle’s make, model, and year to find the recommended tire sizes and specs.
  • Tire Specification Details: Get detailed technical information about specific tire sizes, including load index, speed rating, and more.
Full API Documentation →
FOR DEVS TEAMS

Find tire sizes and fitment specs for any vehicle by year, make, model, and trim.

Vehicle Fitment Lookup Endpoints
Year
/api/v1/by_vehicle/search_year
Make
/api/v1/by_vehicle/make/?year=2024
Model
/api/v1/by_vehicle/model/?year=2024&make=honda
Trim
/api/v1/by_vehicle/trim/?year=2024&make=honda&model=civic
Tire Size
/api/v1/by_vehicle/tiresize/?year=2024&make=honda&model=civic&trim=ex sedan
$ curl -X 'GET' \ 'https://tire.vdim.app/api/v1/by_vehicle/tiresize/?year=2024 
& make=honda & model=civic & trim=ex sedan'
\ -H 'accept: application/json' \
  -H 'x-api-key: your_generated_api_key'
{
  "data": [
     {
        "model": "Accord"
    },
    {
        "model": "CR-V"
    },
    {
        "model": "Civic"
    },
    {
        "model": "HR-V"
    },
    {
        "model": "Odyssey"
    },
	.
    	.
    	.
    ]
   }
ULTRA-FAST RESPONSE

Query tire fitment data by width, aspect ratio, and rim diameter for an exact size match.

Tire Size Search Endpoints
Width
/api/v1/by_size/search_allwidth
Aspect Ratio
/api/v1/by_size/aspectratio/?width=225
Diameter
/api/v1/by_size/diameter/?width=225&aspectratio=45
{
  "data": [
{
        "aspectratio": "35"
    },
    {
        "aspectratio": "40"
    },
    {
        "aspectratio": "45"
    },
    {
        "aspectratio": "50"
    },
    {
        "aspectratio": "55"
    },
    {
        "aspectratio": "60"
    },
	.
    	.
        .
    ]
   }
$ curl -X 'GET' \ 'https://tire.vdim.app/api/v1/by_size
/aspectratio/?width=225
\ -H 'accept: application/json' \
  -H 'x-api-key: your_generated_api_key'
WIDE ACTIVATIONS

Retrieve tire load index, speed rating, and XL (extra load) data for any vehicle fitment.

Load
/api/v1/by_vehicle/load/?year=2020&make=honda&model=cr-v&trim=ex
Speed
/api/v1/by_vehicle/speed/?year=2020&make=honda&model=cr-v&trim=ex
XL
/api/v1/by_vehicle/xl/?year=2020&make=honda&model=cr-v&trim=ex
{
  "data": [
    {
        "speed": "H"
    }
    ]
   }
$ curl -X 'GET' \ 'https://tire.vdim.app/api/v1
/by_vehicle/speed/?year=2020&make=honda&model=cr-v&trim=ex'
\ -H 'accept: application/json' \
  -H 'x-api-key: your_generated_api_key'
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