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VNCNT Labs Trademark Checker

Check product titles, tags and slogans against about 4.4M live USPTO trademarks by class, with risk level, owner and serial number

BusinessAuth: API KeyHTTPS: YesCORS: yesStatus: alive

Last verified: November 12, 2026

Reliability

100% uptime: the documentation responded in 5 of 5 checks over the last 30 days. Median response time: 412 ms.

How we check, and the most reliable APIs →

At a glance

// Fetch the docs page with cURL curl https://vncntlabs.com/tools/trademark-checker/

History

  • November 12, 2026: last health check, responding
  • November 2, 2026: Added to the directory (imported from marcelscruz)

See every change to the directory →