Wheel Fitment API — FAQ

I have timeouts on our website when searching for some makes like BMW and Audi. How do I reduce bandwidth and response time?

Enable gzip compression. Set this request header on every call:

Accept-Encoding: gzip

Payloads are reduced by roughly 10× for the large catalogue endpoints.

Do you have wheel fitment data for my country?

Wheel-Size.com maintains data for all 14 global automotive regions. See the complete list of regions and related countries.

I am from Canada. How should I use your region settings?

Recommended region filters: Canada, USA+, Europe (optional).

I am from Russia. How should I use your region settings?

Recommended region filters: Russia+, Europe, USA+, Japan, China (optional).

I am from Israel. How should I use your region settings?

Recommended region filters: Middle East, Europe, USA+ (optional).

Can I copy your entire database or receive a CSV / SQL export?

No. We do not provide database exports in CSV, SQL or any other bulk format. See our Terms of Usage for the data-usage policy.

How can we use this subscription?

You can use it for e-commerce — for example, powering wheel and tire search on a retail site, or enriching vehicle-lookup flows in your application.

How can I trust your data and service?

The fitment database is updated daily.
Information is added manually after careful verification.
API uptime for 2020–2021: 99.98% (yearly downtime ≈ 1 h 45 min).
Service is monitored continuously from 30+ global locations.
Infrastructure uses Amazon AWS with a 3scale (Red Hat) API management layer.

Live status: status.wheelsize.com.

I don't want to migrate from API v1 to v2. What happens if I do nothing?

Support for /v1/ ended on July 1, 2023. Apps and services that still call /v1/ resources will stop working — migrate to /v2/.

How can I migrate from API /v1/ to API /v2/?

Update your integration following the v2 OpenAPI specification and consult the demos on api-demo.wheel-size.com for reference implementations.

How do I upgrade or downgrade my API plan?

Email info@wheel-size.com, or open a ticket via the developer portal once you are signed in.

How do I cancel my subscription?

Contact our support team at info@wheel-size.com, or manage the subscription directly from your PayPal account.

How frequently am I billed?

All subscription plans are billed on a yearly basis.

Can I test the Wheel Fitment API before buying?

Yes — create a Sandbox account. The sandbox runs against the same infrastructure as the production environment, with limited quota.

How do I pay for the subscription?

Payments are processed through PayPal, which accepts Visa, MasterCard, Discover and American Express. Start on the Subscription & payment page.

How can I use your API for SEO?

See the SEO & data-parsing policy on the Terms page. Cataloging endpoints (/makes/, /models/, /years/, /generations/, /modifications/) can be cached locally for SEO; Search endpoints must be user-initiated and must not be called by crawlers.

Do you provide plugins or modules for WordPress, Magento, Drupal, Bitrix or other CMS platforms?

Not currently. The API is documented via OpenAPI so community-built integrations are possible.

Do you provide a client SDK for PHP / Ruby / Python / Java / Node.js for API v2?

We do not ship an official SDK. Use any OpenAPI client generator (e.g. SwaggerHub, openapi-generator) against our OpenAPI specification.

I just signed up but my account is inactive. What now?

All registrations are moderated manually. Make sure you used real data when signing up — moderation typically takes 2 – 4 hours.

My daily quota is exhausted. What should I do?

Daily quotas reset at 0:00 GMT. Your API will resume automatically at that point. If you consistently hit the ceiling, consider upgrading your plan.