Check a plumber's licence in Connecticut by number or by business name and get one normalized JSON record back, sourced from the Department of Consumer Protection (DCP).
Try a free lookup — no signup, right here on this page. For programmatic access, take a free API key — 250 requests a month, no card. Also on RapidAPI and, if you would rather not write code at all, the Apify Store.
PLM — Plumbing & Piping Contractor — unlimited or limitedA record's classifications array carries these codes, so you can tell a
licence that covers the work from one that merely exists.
curl "https://contractor-license-verification2.p.rapidapi.com/v1/licenses/CT/PLM.0203138-P1" \
-H "X-RapidAPI-Key: YOUR_KEY" \
-H "X-RapidAPI-Host: contractor-license-verification2.p.rapidapi.com"
PLM.0203138-P1 is a real CT licence (BALLARO PLUMBING) in this trade, so that call works as written.
Connecticut licenses plumbing contractors through the same DCP register as everything else here, so unlike Texas a Connecticut plumber is verifiable in one call.
Full coverage detail, including the caveats that apply to every Connecticut lookup, is on the Connecticut page.
The API is on RapidAPI with a free tier: Contractor License Verification. It is also on the Apify Store: Contractor License Lookup & Verification. Full schema at /docs.