CarsMultiverse is an independent site. It is not an authority. It keeps every version of the public recall notices it reads, and it notices when the wording changes. This page is for anyone who wants to use that record in their own work.
What the site holds
Every version of the American recall notices published by NHTSA, read again and again so that changes are caught. The Canadian notices from Transport Canada and the EU Safety Gate alerts from the European Commission, matched to the American campaigns where the codes line up. Each notice is fingerprinted on the day it is read. When a defect, consequence or remedy is rewritten, the site keeps the old text and the new text side by side, with both dates.
- Fifteen thousand American campaigns, each with its first and last reading and the number of rewrites seen.
- The rewrites caught, with the words removed and the words added.
- The delay studies: how long owners wait to be told once a defect is reported, and which campaigns passed the sixty-day mark the law draws.
- The completion study: how many recalled vehicles were actually fixed, by campaign and by component group.
- The three-register cases: the same defect in America, Canada and Europe, and which register had it first.
Every page that renders from data says which file it came from and when it was last read. Nothing is fetched from outside at request time. Corrections are logged on the corrections page and the method is on the methodology page.
What a partner can use today
- The embed. One script and one element put a recall card on your page, with a visible credit line that links back here. Instructions are on Put it on your site.
- The API and the MCP server. Public JSON routes with no key. The register index, the list of changes caught, the wording of any campaign, and an MCP server so an assistant can ask the record directly. Routes are listed on the data page.
- Feeds per model. RSS and JSON for each model page, so a garage that looks after one model can be told when a notice for it changes.
- CSV downloads. Twelve datasets under CC BY 4.0, in CSV and JSON, from the data page. The site’s own fields are ours to license. The notice wording is not ours and stays the property of the register that published it. A nightly copy of every dataset, with its own commit history as a second proof of custody, is kept at github.com/multiverseadmin/carsmultiverse-open-data.
- The recall receipt. A free, dated copy of the campaigns on record for one make and model, sealed with a fingerprint. Made for private sales. The buyer opens the same address on the same day and compares the seal. Start at /receipt/.
- The cite-this-site format. A stable way to reference a campaign, a change or a study, with the date it was read, on Cite this site.
Who it suits
- Garage and dealer sites. Put the card for the models you service on your booking page, so a customer sees the latest change before they arrive.
- Insurers and roadside assistance. Pull the register index nightly and flag policies on a model whose remedy wording changed this week.
- Fleet managers. Subscribe to the feed for each model in the fleet and keep the receipt for the day a vehicle is sold on.
- Newsrooms. Quote a rewrite with the before and after text and both dates, and cite the change page so a reader can check it.
- Universities. Download the delay and completion datasets as CSV and reproduce the studies, or test them against your own sample.
- Manufacturers checking their own record. Read the list of rewrites under your name and confirm that each one is what you meant to publish.
What we ask
- A visible credit: “Data from CarsMultiverse” with a link to the page you used. The embed carries it already.
- No implication that this site is an authority. It is a record of what the registers published, kept by an independent site. Link to the authority’s notice when you can.
- Tell us. A short note through the contact page lets us link back to your work, and lets us warn you if we correct something you relied on.
The badge
A small link you can paste anywhere. Plain HTML, inline styles, no script.
<a href="https://carsmultiverse.com/" rel="noopener" style="display:inline-block;padding:4px 10px;border:1px solid #33404C;border-radius:4px;font:12px/1.4 system-ui,sans-serif;color:#E0654A;background:#10151A;text-decoration:none">Data from CarsMultiverse</a>For a light page, change the background to #FFFFFF and the border to #D9DEE3. Please keep the wording as it is.
How to reach us
Use the contact page. Say who you are, which data you want to use, and where it will appear. For a correction, the corrections page explains what we need and what happens next.