
UK motorcycle reliability ranked by first-time MOT pass rates.
Bike Reliability API is a free Vehicle API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.
Free motorcycle reliability API: JSON MOT pass rates and common failures for every UK bike make and model, from 18,678,991 DVSA MOT tests (2005–2025). Free to use; light use needs no key, a free API key (just add a link back) lifts the daily limit. CORS-enabled.
Details from bikereliability.co.uk.

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The Bike Reliability API is provided by Bike Reliability (bikereliability.co.uk). Free motorcycle reliability API: JSON MOT pass rates and common failures for every UK bike make and model, from 18,678,991 DVSA MOT tests (2005–2025). Free to use; light use needs no key, a free API key (just add a link back) lifts the daily limit. CORS-enabled.
Yes. The Bike Reliability API is listed in the Vehicle category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The Bike Reliability API requires no authentication, so you can start making requests without signing up.
Yes. The Bike Reliability API supports CORS, so front-end JavaScript can call it directly.
Yes. The Bike Reliability API is served over HTTPS, so it's safe to use in production.